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nagios-plugins/check_mssql/check_mssql_health
Pall Sigurdsson b23491b453 moved plugins from subversion-style trunk/ directories
2012-03-12 16:03:21 +00:00

3157 lines
102 KiB
Perl
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#! /usr/bin/perl -w
my %ERRORS=( OK => 0, WARNING => 1, CRITICAL => 2, UNKNOWN => 3 );
my %ERRORCODES=( 0 => 'OK', 1 => 'WARNING', 2 => 'CRITICAL', 3 => 'UNKNOWN' );
package DBD::MSSQL::Server::Memorypool;
use strict;
our @ISA = qw(DBD::MSSQL::Server);
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
buffercache => undef,
procedurecache => undef,
locks => [],
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::memorypool::buffercache/) {
$self->{buffercache} = DBD::MSSQL::Server::Memorypool::BufferCache->new(
%params);
} elsif ($params{mode} =~ /server::memorypool::procedurecache/) {
$self->{procedurecache} = DBD::MSSQL::Server::Memorypool::ProcedureCache->new(
%params);
} elsif ($params{mode} =~ /server::memorypool::lock/) {
DBD::MSSQL::Server::Memorypool::Lock::init_locks(%params);
if (my @locks = DBD::MSSQL::Server::Memorypool::Lock::return_locks()) {
$self->{locks} = \@locks;
} else {
$self->add_nagios_critical("unable to aquire lock info");
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if ($params{mode} =~ /server::memorypool::buffercache/) {
$self->{buffercache}->nagios(%params);
$self->merge_nagios($self->{buffercache});
} elsif ($params{mode} =~ /^server::memorypool::lock::listlocks/) {
foreach (sort { $a->{name} cmp $b->{name}; } @{$self->{locks}}) {
printf "%s\n", $_->{name};
}
$self->add_nagios_ok("have fun");
} elsif ($params{mode} =~ /^server::memorypool::lock/) {
foreach (@{$self->{locks}}) {
$_->nagios(%params);
$self->merge_nagios($_);
}
}
}
package DBD::MSSQL::Server::Memorypool::BufferCache;
use strict;
our @ISA = qw(DBD::MSSQL::Server::Memorypool);
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
hitratio => undef,
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::memorypool::buffercache::hitratio/) {
# -- (a.cntr_value * 1.0 / b.cntr_value) * 100.0 [BufferCacheHitRatio]
$self->{cnt_hitratio} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Buffer cache hit ratio");
$self->{cnt_hitratio_base} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Buffer cache hit ratio base");
if (! defined $self->{cnt_hitratio}) {
$self->add_nagios_unknown("unable to aquire buffer cache data");
} else {
# das kracht weil teilweise negativ
#$self->valdiff(\%params, qw(cnt_hitratio cnt_hitratio_base));
$self->{hitratio} = ($self->{cnt_hitratio_base} == 0) ?
100 : $self->{cnt_hitratio} / $self->{cnt_hitratio_base} * 100.0;
# soll vorkommen.....
$self->{hitratio} = 100 if ($self->{hitratio} > 100);
}
} elsif ($params{mode} =~ /server::memorypool::buffercache::lazywrites/) {
$self->{lazy_writes_s} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Lazy writes/sec");
if (! defined $self->{lazy_writes_s}) {
$self->add_nagios_unknown("unable to aquire buffer manager data");
} else {
$self->valdiff(\%params, qw(lazy_writes_s));
$self->{lazy_writes_per_sec} = $self->{delta_lazy_writes_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /server::memorypool::buffercache::pagelifeexpectancy/) {
$self->{pagelifeexpectancy} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Page life expectancy");
if (! defined $self->{pagelifeexpectancy}) {
$self->add_nagios_unknown("unable to aquire buffer manager data");
}
} elsif ($params{mode} =~ /server::memorypool::buffercache::freeliststalls/) {
$self->{freeliststalls_s} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Free list stalls/sec");
if (! defined $self->{freeliststalls_s}) {
$self->add_nagios_unknown("unable to aquire buffer manager data");
} else {
$self->valdiff(\%params, qw(freeliststalls_s));
$self->{freeliststalls_per_sec} = $self->{delta_freeliststalls_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /server::memorypool::buffercache::checkpointpages/) {
$self->{checkpointpages_s} = $self->{handle}->get_perf_counter(
"SQLServer:Buffer Manager", "Checkpoint pages/sec");
if (! defined $self->{checkpointpages_s}) {
$self->add_nagios_unknown("unable to aquire buffer manager data");
} else {
$self->valdiff(\%params, qw(checkpointpages_s));
$self->{checkpointpages_per_sec} = $self->{delta_checkpointpages_s} / $self->{delta_timestamp};
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /server::memorypool::buffercache::hitratio/) {
$self->add_nagios(
$self->check_thresholds($self->{hitratio}, '90:', '80:'),
sprintf "buffer cache hit ratio is %.2f%%", $self->{hitratio});
$self->add_perfdata(sprintf "buffer_cache_hit_ratio=%.2f%%;%s;%s",
$self->{hitratio},
$self->{warningrange}, $self->{criticalrange});
#$self->add_perfdata(sprintf "buffer_cache_hit_ratio_now=%.2f%%",
# $self->{hitratio_now});
} elsif ($params{mode} =~ /server::memorypool::buffercache::lazywrites/) {
$self->add_nagios(
$self->check_thresholds($self->{lazy_writes_per_sec}, '20', '40'),
sprintf "%.2f lazy writes per second", $self->{lazy_writes_per_sec});
$self->add_perfdata(sprintf "lazy_writes_per_sec=%.2f;%s;%s",
$self->{lazy_writes_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /server::memorypool::buffercache::pagelifeexpectancy/) {
$self->add_nagios(
$self->check_thresholds($self->{pagelifeexpectancy}, '300:', '180:'),
sprintf "page life expectancy is %d seconds", $self->{pagelifeexpectancy});
$self->add_perfdata(sprintf "page_life_expectancy=%d;%s;%s",
$self->{pagelifeexpectancy},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /server::memorypool::buffercache::freeliststalls/) {
$self->add_nagios(
$self->check_thresholds($self->{freeliststalls_per_sec}, '4', '10'),
sprintf "%.2f free list stalls per second", $self->{freeliststalls_per_sec});
$self->add_perfdata(sprintf "free_list_stalls_per_sec=%.2f;%s;%s",
$self->{freeliststalls_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /server::memorypool::buffercache::checkpointpages/) {
$self->add_nagios(
$self->check_thresholds($self->{checkpointpages_per_sec}, '100', '500'),
sprintf "%.2f pages flushed per second", $self->{checkpointpages_per_sec});
$self->add_perfdata(sprintf "checkpoint_pages_per_sec=%.2f;%s;%s",
$self->{checkpointpages_per_sec},
$self->{warningrange}, $self->{criticalrange});
}
}
}
package DBD::MSSQL::Server::Memorypool::Lock;
use strict;
our @ISA = qw(DBD::MSSQL::Server::Memorypool);
{
my @locks = ();
my $initerrors = undef;
sub add_lock {
push(@locks, shift);
}
sub return_locks {
return reverse
sort { $a->{name} cmp $b->{name} } @locks;
}
sub init_locks {
my %params = @_;
my $num_locks = 0;
if (($params{mode} =~ /server::memorypool::lock::listlocks/) ||
($params{mode} =~ /server::memorypool::lock::waits/) ||
($params{mode} =~ /server::memorypool::lock::deadlocks/) ||
($params{mode} =~ /server::memorypool::lock::timeouts/)) {
my @lockresult = $params{handle}->get_instance_names(
'SQLServer:Locks');
foreach (@lockresult) {
my ($name) = @{$_};
$name =~ s/\s*$//;
if ($params{regexp}) {
next if $params{selectname} && $name !~ /$params{selectname}/;
} else {
next if $params{selectname} && lc $params{selectname} ne lc $name;
}
my %thisparams = %params;
$thisparams{name} = $name;
my $lock = DBD::MSSQL::Server::Memorypool::Lock->new(
%thisparams);
add_lock($lock);
$num_locks++;
}
if (! $num_locks) {
$initerrors = 1;
return undef;
}
}
}
}
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
name => $params{name},
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::memorypool::lock::listlocks/) {
# name reicht
} elsif ($params{mode} =~ /server::memorypool::lock::waits/) {
$self->{lock_waits_s} = $self->{handle}->get_perf_counter_instance(
"SQLServer:Locks", "Lock Waits/sec", $self->{name});
if (! defined $self->{lock_waits_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(lock_waits_s));
$self->{lock_waits_per_sec} = $self->{delta_lock_waits_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::memorypool::lock::timeouts/) {
$self->{lock_timeouts_s} = $self->{handle}->get_perf_counter_instance(
"SQLServer:Locks", "Lock Timeouts/sec", $self->{name});
if (! defined $self->{lock_timeouts_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(lock_timeouts_s));
$self->{lock_timeouts_per_sec} = $self->{delta_lock_timeouts_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::memorypool::lock::deadlocks/) {
$self->{lock_deadlocks_s} = $self->{handle}->get_perf_counter_instance(
"SQLServer:Locks", "Number of Deadlocks/sec", $self->{name});
if (! defined $self->{lock_deadlocks_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(lock_deadlocks_s));
$self->{lock_deadlocks_per_sec} = $self->{delta_lock_deadlocks_s} / $self->{delta_timestamp};
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /server::memorypool::lock::waits/) {
$self->add_nagios(
$self->check_thresholds($self->{lock_waits_per_sec}, 100, 500),
sprintf "%.4f lock waits / sec for %s",
$self->{lock_waits_per_sec}, $self->{name});
$self->add_perfdata(sprintf "%s_lock_waits_per_sec=%.4f;%s;%s",
$self->{name}, $self->{lock_waits_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::memorypool::lock::timeouts/) {
$self->add_nagios(
$self->check_thresholds($self->{lock_timeouts_per_sec}, 1, 5),
sprintf "%.4f lock timeouts / sec for %s",
$self->{lock_timeouts_per_sec}, $self->{name});
$self->add_perfdata(sprintf "%s_lock_timeouts_per_sec=%.4f;%s;%s",
$self->{name}, $self->{lock_timeouts_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::memorypool::lock::deadlocks/) {
$self->add_nagios(
$self->check_thresholds($self->{lock_deadlocks_per_sec}, 1, 5),
sprintf "%.4f deadlocks / sec for %s",
$self->{lock_deadlocks_per_sec}, $self->{name});
$self->add_perfdata(sprintf "%s_deadlocks_per_sec=%.4f;%s;%s",
$self->{name}, $self->{lock_deadlocks_per_sec},
$self->{warningrange}, $self->{criticalrange});
}
}
}
package DBD::MSSQL::Server::Memorypool::SystemLevelDataStructures::LockTable;
package DBD::MSSQL::Server::Memorypool::ProcedureCache;
package DBD::MSSQL::Server::Memorypool::LogCache;
package DBD::MSSQL::Server::Memorypool::SystemLevelDataStructures;
package DBD::MSSQL::Server::Database::Datafile;
use strict;
use File::Basename;
our @ISA = qw(DBD::MSSQL::Server::Database);
{
my @datafiles = ();
my $initerrors = undef;
sub add_datafile {
push(@datafiles, shift);
}
sub return_datafiles {
return reverse
sort { $a->{logicalfilename} cmp $b->{logicalfilename} } @datafiles;
}
sub clear_datafiles {
@datafiles = ();
}
sub init_datafiles {
my %params = @_;
my $num_datafiles = 0;
if ($params{mode} =~ /server::database::datafile::listdatafiles/) {
my @datafileresults = $params{handle}->fetchall_array(q{
DECLARE @DBInfo TABLE
( ServerName VARCHAR(100),
DatabaseName VARCHAR(100),
FileSizeMB INT,
LogicalFileName sysname,
PhysicalFileName NVARCHAR(520),
Status sysname,
Updateability sysname,
RecoveryMode sysname,
FreeSpaceMB INT,
FreeSpacePct VARCHAR(7),
FreeSpacePages INT,
PollDate datetime)
DECLARE @command VARCHAR(5000)
SELECT @command = 'Use [' + '?' + '] SELECT
@@servername as ServerName,
' + '''' + '?' + '''' + ' AS DatabaseName,
CAST(sysfiles.size/128.0 AS int) AS FileSize,
sysfiles.name AS LogicalFileName, sysfiles.filename AS PhysicalFileName,
CONVERT(sysname,DatabasePropertyEx(''?'',''Status'')) AS Status,
CONVERT(sysname,DatabasePropertyEx(''?'',''Updateability'')) AS Updateability,
CONVERT(sysname,DatabasePropertyEx(''?'',''Recovery'')) AS RecoveryMode,
CAST(sysfiles.size/128.0 - CAST(FILEPROPERTY(sysfiles.name, ' + '''' +
'SpaceUsed' + '''' + ' ) AS int)/128.0 AS int) AS FreeSpaceMB,
CAST(100 * (CAST (((sysfiles.size/128.0 -CAST(FILEPROPERTY(sysfiles.name,
' + '''' + 'SpaceUsed' + '''' + ' ) AS int)/128.0)/(sysfiles.size/128.0))
AS decimal(4,2))) AS varchar(8)) + ' + '''' + '%' + '''' + ' AS FreeSpacePct,
GETDATE() as PollDate FROM dbo.sysfiles'
INSERT INTO @DBInfo
(ServerName,
DatabaseName,
FileSizeMB,
LogicalFileName,
PhysicalFileName,
Status,
Updateability,
RecoveryMode,
FreeSpaceMB,
FreeSpacePct,
PollDate)
EXEC sp_MSForEachDB @command
SELECT
ServerName,
DatabaseName,
FileSizeMB,
LogicalFileName,
PhysicalFileName,
Status,
Updateability,
RecoveryMode,
FreeSpaceMB,
FreeSpacePct,
PollDate
FROM @DBInfo
ORDER BY
ServerName,
DatabaseName
});
if (DBD::MSSQL::Server::return_first_server()->windows_server()) {
fileparse_set_fstype("MSWin32");
}
foreach (@datafileresults) {
my ($servername, $databasename, $filesizemb, $logicalfilename,
$physicalfilename, $status, $updateability, $recoverymode,
$freespacemb, $freespacepct, $polldate) = @{$_};
next if $databasename ne $params{database};
if ($params{regexp}) {
#next if $params{selectname} &&
# (($name !~ /$params{selectname}/) &&
# (basename($name) !~ /$params{selectname}/));
next if $params{selectname} &&
($logicalfilename !~ /$params{selectname}/);
} else {
#next if $params{selectname} &&
# ((lc $params{selectname} ne lc $name) &&
# (lc $params{selectname} ne lc basename($name)));
next if $params{selectname} &&
(lc $params{selectname} ne lc $logicalfilename);
}
my %thisparams = %params;
$thisparams{servername} = $servername;
$thisparams{databasename} = $databasename;
$thisparams{filesizemb} = $filesizemb;
$thisparams{logicalfilename} = $logicalfilename;
$thisparams{servername} = $servername;
$thisparams{status} = $status;
$thisparams{updateability} = $updateability;
$thisparams{recoverymode} = $recoverymode;
$thisparams{freespacemb} = $freespacemb;
$thisparams{freespacepct} = $freespacepct;
$thisparams{polldate} = $polldate;
my $datafile =
DBD::MSSQL::Server::Database::Datafile->new(
%thisparams);
add_datafile($datafile);
$num_datafiles++;
}
}
}
}
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
databasename => $params{databasename},
filesizemb => $params{filesizemb},
logicalfilename => $params{logicalfilename},
physicalfilename => $params{physicalfilename},
status => $params{status},
updateability => $params{updateability},
recoverymode => $params{recoverymode},
freespacemb => $params{freespacemb},
freespacepct => $params{freespacepct},
freespacepages => $params{freespacepages},
polldate => $params{polldate},
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::database::iobalance/) {
if (! defined $self->{phyrds}) {
$self->add_nagios_critical(sprintf "unable to read datafile io %s", $@);
} else {
$params{differenciator} = $self->{path};
$self->valdiff(\%params, qw(phyrds phywrts));
$self->{io_total} = $self->{delta_phyrds} + $self->{delta_phywrts};
}
} elsif ($params{mode} =~ /server::database::datafile::iotraffic/) {
if (! defined $self->{phyrds}) {
$self->add_nagios_critical(sprintf "unable to read datafile io %s", $@);
} else {
$params{differenciator} = $self->{path};
$self->valdiff(\%params, qw(phyrds phywrts));
$self->{io_total_per_sec} = ($self->{delta_phyrds} + $self->{delta_phywrts}) /
$self->{delta_timestamp};
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /server::database::datafile::iotraffic/) {
$self->add_nagios(
$self->check_thresholds($self->{io_total_per_sec}, "1000", "5000"),
sprintf ("%s: %.2f IO Operations per Second",
$self->{name}, $self->{io_total_per_sec}));
$self->add_perfdata(sprintf "'dbf_%s_io_total_per_sec'=%.2f;%d;%d",
$self->{name}, $self->{io_total_per_sec},
$self->{warningrange}, $self->{criticalrange});
}
}
}
package DBD::MSSQL::Server::Database;
use strict;
our @ISA = qw(DBD::MSSQL::Server);
{
my @databases = ();
my $initerrors = undef;
sub add_database {
push(@databases, shift);
}
sub return_databases {
return reverse
sort { $a->{name} cmp $b->{name} } @databases;
}
sub init_databases {
my %params = @_;
my $num_databases = 0;
if (($params{mode} =~ /server::database::listdatabases/) ||
($params{mode} =~ /server::database::databasefree/) ||
($params{mode} =~ /server::database::lastbackup/) ||
($params{mode} =~ /server::database::transactions/) ||
($params{mode} =~ /server::database::datafile/)) {
my @databaseresult = ();
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
@databaseresult = $params{handle}->fetchall_array(q{
SELECT name, database_id FROM master.sys.databases
});
} else {
#@databaseresult = map {
# [ $_->[0], $_->[3] ] # only name, dbid
#} $params{handle}->fetchall_array(q{exec sp_helpdb});
@databaseresult = $params{handle}->fetchall_array(q{
SELECT name, dbid FROM master.dbo.sysdatabases
});
}
if ($params{mode} =~ /server::database::transactions/) {
push(@databaseresult, [ '_Total', 0 ]);
}
foreach (@databaseresult) {
my ($name, $id) = @{$_};
next if $params{database} && $name ne $params{database};
if ($params{regexp}) {
next if $params{selectname} && $name !~ /$params{selectname}/;
} else {
next if $params{selectname} && lc $params{selectname} ne lc $name;
}
my %thisparams = %params;
$thisparams{name} = $name;
$thisparams{id} = $id;
my $database = DBD::MSSQL::Server::Database->new(
%thisparams);
add_database($database);
$num_databases++;
}
if (! $num_databases) {
$initerrors = 1;
return undef;
}
} elsif ($params{mode} =~ /server::database::backupage/) {
my @databaseresult = ();
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
@databaseresult = $params{handle}->fetchall_array(q{
SELECT
a.name,
DATEDIFF(HH, MAX(b.backup_finish_date), GETDATE()),
DATEDIFF(MI, MAX(b.backup_start_date), MAX(b.backup_finish_date))
FROM sys.sysdatabases a LEFT OUTER JOIN msdb.dbo.backupset b
ON b.database_name = a.name
GROUP BY a.name
ORDER BY a.name
});
} else {
@databaseresult = $params{handle}->fetchall_array(q{
SELECT
a.name,
DATEDIFF(HH, MAX(b.backup_finish_date), GETDATE()),
DATEDIFF(MI, MAX(b.backup_start_date), MAX(b.backup_finish_date))
FROM master.dbo.sysdatabases a LEFT OUTER JOIN msdb.dbo.backupset b
ON b.database_name = a.name
GROUP BY a.name
ORDER BY a.name
});
}
foreach (sort {
if (! defined $b->[1]) {
return 1;
} elsif (! defined $a->[1]) {
return -1;
} else {
return $a->[1] <=> $b->[1];
}
} @databaseresult) {
my ($name, $age, $duration) = @{$_};
next if $params{database} && $name ne $params{database};
if ($params{regexp}) {
next if $params{selectname} && $name !~ /$params{selectname}/;
} else {
next if $params{selectname} && lc $params{selectname} ne lc $name;
}
my %thisparams = %params;
$thisparams{name} = $name;
$thisparams{backup_age} = $age;
$thisparams{backup_duration} = $duration;
my $database = DBD::MSSQL::Server::Database->new(
%thisparams);
add_database($database);
$num_databases++;
}
}
}
}
sub new {
my $class = shift;
my %params = @_;
my $self = {
handle => $params{handle},
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
name => $params{name},
id => $params{id},
datafiles => [],
backup_age => $params{backup_age},
backup_duration => $params{backup_duration},
};
bless $self, $class;
$self->init(%params);
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$self->init_nagios();
if ($params{mode} =~ /server::database::datafile/) {
$params{database} = $self->{name};
DBD::MSSQL::Server::Database::Datafile::init_datafiles(%params);
if (my @datafiles =
DBD::MSSQL::Server::Database::Datafile::return_datafiles()) {
$self->{datafiles} = \@datafiles;
} else {
$self->add_nagios_critical("unable to aquire datafile info");
}
} elsif ($params{mode} =~ /server::database::databasefree/) {
###################################################################################
# fuer's museum
# 1> sp_spaceused
# 2> go
# database_name database_size unallocated space
# master 4.50 MB 1.32 MB
# reserved data index_size unused
# 2744 KB 1056 KB 1064 KB 624 KB
# (return status = 0)
#my($database_name, $database_size, $unallocated_space,
# $reserved, $data, $index_size, $unused) =
# $params{handle}->fetchrow_array(
# "USE ".$self->{name}."\nEXEC SP_SPACEUSED"
#);
# server mgmt studio sp_spaceused
# Currently Allocated Space database_size 641.94MB
# Available Free Space unallocated space 457.09MB
#$database_size =~ s/MB//g;
#$unallocated_space =~ s/MB//g;
#$self->{size} = $database_size * 1024 * 1024;
#$self->{free} = $unallocated_space * 1024 * 1024;
#$self->{percent_free} = $unallocated_space / $database_size * 100;
#$self->{used} = $self->{size} - $self->{free};
#$self->{maxsize} = "99999999999999999";
###################################################################################
my $calc = {};
$self->{handle}->execute(q{
if object_id('tempdb..#FreeSpace') is null
create table #FreeSpace(
Drive varchar(10),
MB_Free bigint
)
});
$self->{handle}->execute(q{
DELETE FROM #FreeSpace
});
$self->{handle}->execute(q{
INSERT INTO #FreeSpace exec master.dbo.xp_fixeddrives
});
foreach($self->{handle}->fetchall_array(q{
SELECT * FROM #FreeSpace
})) {
$calc->{drive_mb}->{lc $_->[0]} = $_->[1];
}
#$self->{handle}->execute(q{
# DROP TABLE #FreeSpace
#});
# Page = 8KB
# sysfiles ist sv2000, noch als kompatibilitaetsview vorhanden
# dbo.sysfiles kann 2008 durch sys.database_files ersetzt werden?
# omeiomeiomei in 2005 ist ein sys.sysindexes compatibility view
# fuer 2000.dbo.sysindexes
# besser ist sys.allocation_units
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
my $sql = q{
SELECT
SUM(CAST(used AS BIGINT)) / 128
FROM
[?].sys.sysindexes
WHERE
indid IN (0,1,255)
};
#$sql =~ s/\[\?\]/$self->{name}/g;
$sql =~ s/\?/$self->{name}/g;
$self->{used_mb} = $self->{handle}->fetchrow_array($sql);
} else {
my $sql = q{
SELECT
SUM(CAST(used AS BIGINT)) / 128
FROM
[?].dbo.sysindexes
WHERE
indid IN (0,1,255)
};
#$sql =~ s/\[\?\]/$self->{name}/g;
$sql =~ s/\?/$self->{name}/g;
$self->{used_mb} = $self->{handle}->fetchrow_array($sql);
}
my @fileresult = ();
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
my $sql = q{
SELECT
RTRIM(a.name), RTRIM(a.filename), CAST(a.size AS BIGINT),
CAST(a.maxsize AS BIGINT), a.growth
FROM
[?].sys.sysfiles a
JOIN
[?].sys.sysfilegroups b
ON
a.groupid = b.groupid
};
#$sql =~ s/\[\?\]/$self->{name}/g;
$sql =~ s/\?/$self->{name}/g;
@fileresult = $self->{handle}->fetchall_array($sql);
} else {
my $sql = q{
SELECT
RTRIM(a.name), RTRIM(a.filename), CAST(a.size AS BIGINT),
CAST(a.maxsize AS BIGINT), a.growth
FROM
[?].dbo.sysfiles a
JOIN
[?].dbo.sysfilegroups b
ON
a.groupid = b.groupid
};
#$sql =~ s/\[\?\]/$self->{name}/g;
$sql =~ s/\?/$self->{name}/g;
@fileresult = $self->{handle}->fetchall_array($sql);
}
foreach(@fileresult) {
my($name, $filename, $size, $maxsize, $growth) = @{$_};
my $drive = lc substr($filename, 0, 1);
$calc->{datafile}->{$name}->{allocsize} = $size / 128;
if ($growth == 0) {
$calc->{datafile}->{$name}->{maxsize} = $size / 128;
} else {
if ($maxsize == -1) {
$calc->{datafile}->{$name}->{maxsize} =
exists $calc->{drive_mb}->{$drive} ?
($calc->{datafile}->{$name}->{allocsize} +
$calc->{drive_mb}->{$drive}) : 4 * 1024;
# falls die platte nicht gefunden wurde, dann nimm halt 4GB
} else {
$calc->{datafile}->{$name}->{maxsize} = $maxsize / 128;
}
}
$self->{allocated_mb} += $calc->{datafile}->{$name}->{allocsize};
$self->{max_mb} += $calc->{datafile}->{$name}->{maxsize};
}
$self->{allocated_mb} = $self->{allocated_mb};
if ($self->{used_mb} > $self->{allocated_mb}) {
# obige used-berechnung liefert manchmal (wenns knapp hergeht) mehr als
# den maximal verfuegbaren platz. vermutlich muessen dann
# zwecks ermittlung des tatsaechlichen platzverbrauchs
# irgendwelche dbcc updateusage laufen.
# egal, wird schon irgendwie stimmen.
$self->{used_mb} = $self->{allocated_mb};
$self->{estimated} = 1;
} else {
$self->{estimated} = 0;
}
$self->{free_mb} = $self->{max_mb} - $self->{used_mb};
$self->{free_percent} = 100 * $self->{free_mb} / $self->{max_mb};
$self->{allocated_percent} = 100 * $self->{allocated_mb} / $self->{max_mb};
} elsif ($params{mode} =~ /^server::database::transactions/) {
$self->{transactions_s} = $self->{handle}->get_perf_counter_instance(
'SQLServer:Databases', 'Transactions/sec', $self->{name});
if (! defined $self->{transactions_s}) {
$self->add_nagios_unknown("unable to aquire counter data for $self->{name}");
} else {
$self->valdiff(\%params, qw(transactions_s));
$self->{transactions_per_sec} = $self->{delta_transactions_s} / $self->{delta_timestamp};
}
}
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /server::database::datafile::listdatafiles/) {
foreach (sort { $a->{logicalfilename} cmp $b->{logicalfilename}; } @{$self->{datafiles}}) {
printf "%s\n", $_->{logicalfilename};
}
$self->add_nagios_ok("have fun");
} elsif ($params{mode} =~ /^server::database::transactions/) {
$self->add_nagios(
$self->check_thresholds($self->{transactions_per_sec}, 10000, 50000),
sprintf "\n%s has %.4f transactions / sec",
$self->{name}, $self->{transactions_per_sec});
$self->add_perfdata(sprintf "%s_transactions_per_sec=%.4f;%s;%s",
$self->{name}, $self->{transactions_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /server::database::databasefree/) {
# ->percent_free
# ->free
#
# ausgabe
# perfdata db_<db>_free_pct
# perfdata db_<db>_free (real_bytes_max - bytes) + bytes_free (with units)
# perfdata db_<db>_alloc_free bytes_free (with units)
#
# umrechnen der thresholds
# ()/%
# MB
# GB
# KB
if (($self->{warningrange} && $self->{warningrange} !~ /^\d+[\.\d]*:/) ||
($self->{criticalrange} && $self->{criticalrange} !~ /^\d+[\.\d]*:/)) {
$self->add_nagios_unknown("you want an alert if free space is _above_ a threshold????");
return;
}
if (! $params{units}) {
$params{units} = "%";
}
$self->{warning_bytes} = 0;
$self->{critical_bytes} = 0;
if ($params{units} eq "%") {
$self->add_nagios(
$self->check_thresholds($self->{free_percent}, "5:", "2:"),
sprintf("database %s has %.2f%% free space left",
$self->{name}, $self->{free_percent},
($self->{estimated} ? " (estim.)" : ""))
);
$self->{warningrange} =~ s/://g;
$self->{criticalrange} =~ s/://g;
$self->add_perfdata(sprintf "\'db_%s_free_pct\'=%.2f%%;%d:;%d:",
lc $self->{name},
$self->{free_percent},
$self->{warningrange}, $self->{criticalrange});
$self->add_perfdata(sprintf "\'db_%s_free\'=%dMB;%.2f:;%.2f:;0;%.2f",
lc $self->{name},
$self->{free_mb},
$self->{warningrange} * $self->{max_mb} / 100,
$self->{criticalrange} * $self->{max_mb} / 100,
$self->{max_mb});
$self->add_perfdata(sprintf "\'db_%s_allocated_pct\'=%.2f%%",
lc $self->{name},
$self->{allocated_percent});
} else {
my $factor = 1; # default MB
if ($params{units} eq "GB") {
$factor = 1024;
} elsif ($params{units} eq "MB") {
$factor = 1;
} elsif ($params{units} eq "KB") {
$factor = 1 / 1024;
}
$self->{warningrange} ||= "5:";
$self->{criticalrange} ||= "2:";
my $saved_warningrange = $self->{warningrange};
my $saved_criticalrange = $self->{criticalrange};
# : entfernen weil gerechnet werden muss
$self->{warningrange} =~ s/://g;
$self->{criticalrange} =~ s/://g;
$self->{warningrange} = $self->{warningrange} ?
$self->{warningrange} * $factor : 5 * $factor;
$self->{criticalrange} = $self->{criticalrange} ?
$self->{criticalrange} * $factor : 2 * $factor;
$self->{percent_warning} = 100 * $self->{warningrange} / $self->{max_mb};
$self->{percent_critical} = 100 * $self->{criticalrange} / $self->{max_mb};
$self->{warningrange} .= ':';
$self->{criticalrange} .= ':';
$self->add_nagios(
$self->check_thresholds($self->{free_mb}, "5242880:", "1048576:"),
sprintf("database %s has %.2f%s free space left", $self->{name},
$self->{free_mb} / $factor, $params{units})
);
$self->{warningrange} = $saved_warningrange;
$self->{criticalrange} = $saved_criticalrange;
$self->{warningrange} =~ s/://g;
$self->{criticalrange} =~ s/://g;
$self->add_perfdata(sprintf "\'db_%s_free_pct\'=%.2f%%;%.2f:;%.2f:",
lc $self->{name},
$self->{free_percent}, $self->{percent_warning},
$self->{percent_critical});
$self->add_perfdata(sprintf "\'db_%s_free\'=%.2f%s;%.2f:;%.2f:;0;%.2f",
lc $self->{name},
$self->{free_mb} / $factor, $params{units},
$self->{warningrange},
$self->{criticalrange},
$self->{max_mb} / $factor);
$self->add_perfdata(sprintf "\'db_%s_allocated_pct\'=%.2f%%",
lc $self->{name},
$self->{allocated_percent});
}
} elsif ($params{mode} =~ /server::database::backupage/) {
if (! defined $self->{backup_age}) {
$self->add_nagios_critical(sprintf "%s was never backupped",
$self->{name});
$self->{backup_age} = 0;
$self->{backup_duration} = 0;
$self->check_thresholds($self->{backup_age}, 48, 72); # init wg perfdata
} else {
$self->add_nagios(
$self->check_thresholds($self->{backup_age}, 48, 72),
sprintf "\n%s backupped %dh ago", $self->{name}, $self->{backup_age});
}
$self->add_perfdata(sprintf "'%s_bck_age'=%d;%s;%s",
$self->{name}, $self->{backup_age},
$self->{warningrange}, $self->{criticalrange});
$self->add_perfdata(sprintf "'%s_bck_time'=%d",
$self->{name}, $self->{backup_duration});
}
}
}
package DBD::MSSQL::Server;
use strict;
use Time::HiRes;
use IO::File;
use File::Copy 'cp';
use Data::Dumper;
{
our $verbose = 0;
our $scream = 0; # scream if something is not implemented
our $my_modules_dyn_dir = ""; # where we look for self-written extensions
my @servers = ();
my $initerrors = undef;
sub add_server {
push(@servers, shift);
}
sub return_servers {
return @servers;
}
sub return_first_server() {
return $servers[0];
}
}
sub new {
my $class = shift;
my %params = @_;
my $self = {
method => $params{method} || "dbi",
hostname => $params{hostname},
username => $params{username},
password => $params{password},
port => $params{port} || 1433,
server => $params{server},
timeout => $params{timeout},
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
version => 'unknown',
os => 'unknown',
servicename => 'unknown',
instance => undef,
memorypool => undef,
databases => [],
handle => undef,
};
bless $self, $class;
$self->init_nagios();
if ($self->dbconnect(%params)) {
#$self->{version} = $self->{handle}->fetchrow_array(
# q{ SELECT SERVERPROPERTY('productversion') });
map {
$self->{os} = $1 if /Windows (.*)/;
$self->{version} = $1 if /SQL Server.*\-\s*([\d\.]+)/;
} $self->{handle}->fetchrow_array(
q{ SELECT @@VERSION });
$self->{dbuser} = $self->{handle}->fetchrow_array(
q{ SELECT SYSTEM_USER }); # maybe SELECT SUSER_SNAME()
$self->{servicename} = $self->{handle}->fetchrow_array(
q{ SELECT @@SERVICENAME });
if (lc $self->{servicename} ne 'mssqlserver') {
# braucht man fuer abfragen von dm_os_performance_counters
# object_name ist entweder "SQLServer:Buffer Node" oder z.b. "MSSQL$OASH: Buffer Node"
$self->{servicename} = 'MSSQL$'.$self->{servicename};
} else {
$self->{servicename} = 'SQLServer';
}
DBD::MSSQL::Server::add_server($self);
$self->init(%params);
}
return $self;
}
sub init {
my $self = shift;
my %params = @_;
$params{handle} = $self->{handle};
if ($params{mode} =~ /^server::memorypool/) {
$self->{memorypool} = DBD::MSSQL::Server::Memorypool->new(%params);
} elsif ($params{mode} =~ /^server::database/) {
DBD::MSSQL::Server::Database::init_databases(%params);
if (my @databases =
DBD::MSSQL::Server::Database::return_databases()) {
$self->{databases} = \@databases;
} else {
$self->add_nagios_critical("unable to aquire database info");
}
} elsif ($params{mode} =~ /^server::connectiontime/) {
$self->{connection_time} = $self->{tac} - $self->{tic};
} elsif ($params{mode} =~ /^server::cpubusy/) {
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
($self->{secs_busy}) = $self->{handle}->fetchrow_array(q{
SELECT ((@@CPU_BUSY * CAST(@@TIMETICKS AS FLOAT)) /
(SELECT (CAST(CPU_COUNT AS FLOAT) / CAST(HYPERTHREAD_RATIO AS FLOAT)) FROM sys.dm_os_sys_info) /
1000000)
});
$self->valdiff(\%params, qw(secs_busy));
if (defined $self->{secs_busy}) {
$self->{cpu_busy} = 100 *
$self->{delta_secs_busy} / $self->{delta_timestamp};
} else {
$self->add_nagios_critical("got no cputime from dm_os_sys_info");
}
} else {
#$self->requires_version('9');
my @monitor = $params{handle}->exec_sp_1hash(q{exec sp_monitor});
foreach (@monitor) {
if ($_->[0] eq 'cpu_busy') {
if ($_->[1] =~ /(\d+)%/) {
$self->{cpu_busy} = $1;
}
}
}
self->requires_version('9') unless defined $self->{cpu_busy};
}
} elsif ($params{mode} =~ /^server::iobusy/) {
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
($self->{secs_busy}) = $self->{handle}->fetchrow_array(q{
SELECT ((@@IO_BUSY * CAST(@@TIMETICKS AS FLOAT)) /
(SELECT (CAST(CPU_COUNT AS FLOAT) / CAST(HYPERTHREAD_RATIO AS FLOAT)) FROM sys.dm_os_sys_info) /
1000000)
});
$self->valdiff(\%params, qw(secs_busy));
if (defined $self->{secs_busy}) {
$self->{io_busy} = 100 *
$self->{delta_secs_busy} / $self->{delta_timestamp};
} else {
$self->add_nagios_critical("got no iotime from dm_os_sys_info");
}
} else {
#$self->requires_version('9');
my @monitor = $params{handle}->exec_sp_1hash(q{exec sp_monitor});
foreach (@monitor) {
if ($_->[0] eq 'io_busy') {
if ($_->[1] =~ /(\d+)%/) {
$self->{io_busy} = $1;
}
}
}
self->requires_version('9') unless defined $self->{io_busy};
}
} elsif ($params{mode} =~ /^server::fullscans/) {
$self->{cnt_full_scans_s} = $self->{handle}->get_perf_counter(
'SQLServer:Access Methods', 'Full Scans/sec');
if (! defined $self->{cnt_full_scans_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(cnt_full_scans_s));
$self->{full_scans_per_sec} = $self->{delta_cnt_full_scans_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::latch::waittime/) {
$self->{latch_wait_time} = $self->{handle}->get_perf_counter(
"SQLServer:Latches", "Average Latch Wait Time (ms)");
$self->{latch_wait_time_base} = $self->{handle}->get_perf_counter(
"SQLServer:Latches", "Average Latch Wait Time Base");
if (! defined $self->{latch_wait_time}) {
$self->add_nagios_unknown("unable to aquire counter data");
}
$self->{latch_wait_time} = $self->{latch_wait_time} / $self->{latch_wait_time_base};
} elsif ($params{mode} =~ /^server::latch::waits/) {
$self->{latch_waits_s} = $self->{handle}->get_perf_counter(
"SQLServer:Latches", "Latch Waits/sec");
if (! defined $self->{latch_waits_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(latch_waits_s));
$self->{latch_waits_per_sec} = $self->{delta_latch_waits_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::sql::.*compilations/) {
$self->{recompilations_s} = $self->{handle}->get_perf_counter(
"SQLServer:SQL Statistics", "SQL Re-Compilations/sec");
$self->{compilations_s} = $self->{handle}->get_perf_counter(
"SQLServer:SQL Statistics", "SQL Compilations/sec");
if (! defined $self->{recompilations_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(recompilations_s compilations_s));
# http://www.sqlmag.com/Articles/ArticleID/40925/pg/3/3.html
# http://www.grumpyolddba.co.uk/monitoring/Performance%20Counter%20Guidance%20-%20SQL%20Server.htm
$self->{delta_initial_compilations_s} = $self->{delta_compilations_s} -
$self->{delta_recompilations_s};
$self->{initial_compilations_per_sec} =
$self->{delta_initial_compilations_s} / $self->{delta_timestamp};
$self->{recompilations_per_sec} =
$self->{delta_recompilations_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::batchrequests/) {
$self->{batch_requests_s} = $self->{handle}->get_perf_counter(
"SQLServer:SQL Statistics", "Batch requests/sec");
if (! defined $self->{batch_requests_s}) {
$self->add_nagios_unknown("unable to aquire counter data");
} else {
$self->valdiff(\%params, qw(batch_requests_s));
$self->{batch_requests_per_sec} = $self->{delta_batch_requests_s} / $self->{delta_timestamp};
}
} elsif ($params{mode} =~ /^server::totalmemory/) {
$self->{total_memory} = $self->{handle}->get_perf_counter(
"SQLServer:Memory Manager", "Total Server Memory (KB)");
if (! defined $self->{total_memory}) {
$self->add_nagios_unknown("unable to aquire counter data");
}
} elsif ($params{mode} =~ /^server::connectedusers/) {
$self->{connectedusers} = $self->{handle}->fetchrow_array(q{
SELECT
COUNT(*)
FROM
master..sysprocesses
WHERE
spid > ?
}, 51);
if (! defined $self->{connectedusers}) {
$self->add_nagios_unknown("unable to count connected users");
}
} elsif ($params{mode} =~ /^server::sql/) {
@{$self->{genericsql}} =
$self->{handle}->fetchrow_array($params{selectname});
if ((scalar(@{$self->{genericsql}}) == 0) ||
(! (defined $self->{genericsql} &&
(scalar(grep { /^\s*\d+\.{0,1}\d*\s*$/ } @{$self->{genericsql}})) ==
scalar(@{$self->{genericsql}})))) {
$self->add_nagios_unknown(sprintf "got no valid response for %s",
$params{selectname});
} else {
# name2 in array
# units in array
}
} elsif ($params{mode} =~ /^my::([^:.]+)/) {
my $class = $1;
my $loaderror = undef;
substr($class, 0, 1) = uc substr($class, 0, 1);
foreach my $libpath (split(":", $DBD::MSSQL::Server::my_modules_dyn_dir)) {
foreach my $extmod (glob $libpath."/CheckMSSQLHealth*.pm") {
eval {
$self->trace(sprintf "loading module %s", $extmod);
require $extmod;
};
if ($@) {
$loaderror = $extmod;
$self->trace(sprintf "failed loading module %s: %s", $extmod, $@);
}
}
}
my $obj = {
handle => $params{handle},
warningrange => $params{warningrange},
criticalrange => $params{criticalrange},
};
bless $obj, "My$class";
$self->{my} = $obj;
if ($self->{my}->isa("DBD::MSSQL::Server")) {
my $dos_init = $self->can("init");
my $dos_nagios = $self->can("nagios");
my $my_init = $self->{my}->can("init");
my $my_nagios = $self->{my}->can("nagios");
if ($my_init == $dos_init) {
$self->add_nagios_unknown(
sprintf "Class %s needs an init() method", ref($self->{my}));
} elsif ($my_nagios == $dos_nagios) {
$self->add_nagios_unknown(
sprintf "Class %s needs a nagios() method", ref($self->{my}));
} else {
$self->{my}->init_nagios(%params);
$self->{my}->init(%params);
}
} else {
$self->add_nagios_unknown(
sprintf "Class %s is not a subclass of DBD::MSSQL::Server%s",
ref($self->{my}),
$loaderror ? sprintf " (syntax error in %s?)", $loaderror : "" );
}
} else {
printf "broken mode %s\n", $params{mode};
}
}
sub dump {
my $self = shift;
my $message = shift || "";
printf "%s %s\n", $message, Data::Dumper::Dumper($self);
}
sub nagios {
my $self = shift;
my %params = @_;
if (! $self->{nagios_level}) {
if ($params{mode} =~ /^server::instance/) {
$self->{instance}->nagios(%params);
$self->merge_nagios($self->{instance});
} elsif ($params{mode} =~ /server::database::listdatabases/) {
foreach (sort { $a->{name} cmp $b->{name}; } @{$self->{databases}}) {
printf "%s\n", $_->{name};
}
$self->add_nagios_ok("have fun");
} elsif ($params{mode} =~ /^server::database/) {
foreach (@{$self->{databases}}) {
$_->nagios(%params);
$self->merge_nagios($_);
}
} elsif ($params{mode} =~ /^server::database/) {
} elsif ($params{mode} =~ /^server::lock/) {
foreach (@{$self->{locks}}) {
$_->nagios(%params);
$self->merge_nagios($_);
}
} elsif ($params{mode} =~ /^server::memorypool/) {
$self->{memorypool}->nagios(%params);
$self->merge_nagios($self->{memorypool});
} elsif ($params{mode} =~ /^server::connectiontime/) {
$self->add_nagios(
$self->check_thresholds($self->{connection_time}, 1, 5),
sprintf "%.2f seconds to connect as %s",
$self->{connection_time}, $self->{dbuser});
$self->add_perfdata(sprintf "connection_time=%.2f;%d;%d",
$self->{connection_time},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::cpubusy/) {
$self->add_nagios(
$self->check_thresholds($self->{cpu_busy}, 80, 90),
sprintf "CPU busy %.2f%%", $self->{cpu_busy});
$self->add_perfdata(sprintf "cpu_busy=%.2f;%s;%s",
$self->{cpu_busy},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::iobusy/) {
$self->add_nagios(
$self->check_thresholds($self->{io_busy}, 80, 90),
sprintf "IO busy %.2f%%", $self->{io_busy});
$self->add_perfdata(sprintf "io_busy=%.2f;%s;%s",
$self->{io_busy},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::fullscans/) {
$self->add_nagios(
$self->check_thresholds($self->{full_scans_per_sec}, 100, 500),
sprintf "%.2f full table scans / sec", $self->{full_scans_per_sec});
$self->add_perfdata(sprintf "full_scans_per_sec=%.2f;%s;%s",
$self->{full_scans_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::latch::waits/) {
$self->add_nagios(
$self->check_thresholds($self->{latch_waits_per_sec}, 10, 50),
sprintf "%.2f latches / sec have to wait", $self->{latch_waits_per_sec});
$self->add_perfdata(sprintf "latch_waits_per_sec=%.2f;%s;%s",
$self->{latch_waits_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::latch::waittime/) {
$self->add_nagios(
$self->check_thresholds($self->{latch_wait_time}, 1, 5),
sprintf "latches have to wait %.2f ms avg", $self->{latch_wait_time});
$self->add_perfdata(sprintf "latch_avg_wait_time=%.2fms;%s;%s",
$self->{latch_wait_time},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::sql::recompilations/) {
$self->add_nagios(
$self->check_thresholds($self->{recompilations_per_sec}, 1, 10),
sprintf "%.2f SQL recompilations / sec", $self->{recompilations_per_sec});
$self->add_perfdata(sprintf "sql_recompilations_per_sec=%.2f;%s;%s",
$self->{recompilations_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::sql::initcompilations/) {
$self->add_nagios(
$self->check_thresholds($self->{initial_compilations_per_sec}, 100, 200),
sprintf "%.2f initial compilations / sec", $self->{initial_compilations_per_sec});
$self->add_perfdata(sprintf "sql_initcompilations_per_sec=%.2f;%s;%s",
$self->{initial_compilations_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::batchrequests/) {
$self->add_nagios(
$self->check_thresholds($self->{batch_requests_per_sec}, 100, 200),
sprintf "%.2f batch requests / sec", $self->{batch_requests_per_sec});
$self->add_perfdata(sprintf "batch_requests_per_sec=%.2f;%s;%s",
$self->{batch_requests_per_sec},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::totalmemory/) {
$self->add_nagios(
$self->check_thresholds($self->{total_memory}, 1000, 5000),
sprintf "total server memory %ld", $self->{total_memory});
$self->add_perfdata(sprintf "total_server_memory=%ld;%s;%s",
$self->{total_memory},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::connectedusers/) {
$self->add_nagios(
$self->check_thresholds($self->{connectedusers}, 50, 80),
sprintf "%d connected users", $self->{connectedusers});
$self->add_perfdata(sprintf "connected_users=%d;%s;%s",
$self->{connectedusers},
$self->{warningrange}, $self->{criticalrange});
} elsif ($params{mode} =~ /^server::sql/) {
$self->add_nagios(
# the first item in the list will trigger the threshold values
$self->check_thresholds($self->{genericsql}[0], 1, 5),
sprintf "%s: %s%s",
$params{name2} ? lc $params{name2} : lc $params{selectname},
# float as float, integers as integers
join(" ", map {
(sprintf("%d", $_) eq $_) ? $_ : sprintf("%f", $_)
} @{$self->{genericsql}}),
$params{units} ? $params{units} : "");
my $i = 0;
# workaround... getting the column names from the database would be nicer
my @names2_arr = split(/\s+/, $params{name2});
foreach my $t (@{$self->{genericsql}}) {
$self->add_perfdata(sprintf "\'%s\'=%s%s;%s;%s",
$names2_arr[$i] ? lc $names2_arr[$i] : lc $params{selectname},
# float as float, integers as integers
(sprintf("%d", $t) eq $t) ? $t : sprintf("%f", $t),
$params{units} ? $params{units} : "",
($i == 0) ? $self->{warningrange} : "",
($i == 0) ? $self->{criticalrange} : ""
);
$i++;
}
} elsif ($params{mode} =~ /^my::([^:.]+)/) {
$self->{my}->nagios(%params);
$self->merge_nagios($self->{my});
}
}
}
sub init_nagios {
my $self = shift;
no strict 'refs';
if (! ref($self)) {
my $nagiosvar = $self."::nagios";
my $nagioslevelvar = $self."::nagios_level";
$$nagiosvar = {
messages => {
0 => [],
1 => [],
2 => [],
3 => [],
},
perfdata => [],
};
$$nagioslevelvar = $ERRORS{OK},
} else {
$self->{nagios} = {
messages => {
0 => [],
1 => [],
2 => [],
3 => [],
},
perfdata => [],
};
$self->{nagios_level} = $ERRORS{OK},
}
}
sub check_thresholds {
my $self = shift;
my $value = shift;
my $defaultwarningrange = shift;
my $defaultcriticalrange = shift;
my $level = $ERRORS{OK};
$self->{warningrange} = defined $self->{warningrange} ?
$self->{warningrange} : $defaultwarningrange;
$self->{criticalrange} = defined $self->{criticalrange} ?
$self->{criticalrange} : $defaultcriticalrange;
if ($self->{warningrange} !~ /:/ && $self->{criticalrange} !~ /:/) {
# warning = 10, critical = 20, warn if > 10, crit if > 20
$level = $ERRORS{WARNING} if $value > $self->{warningrange};
$level = $ERRORS{CRITICAL} if $value > $self->{criticalrange};
} elsif ($self->{warningrange} =~ /(\d+):/ &&
$self->{criticalrange} =~ /(\d+):/) {
# warning = 98:, critical = 95:, warn if < 98, crit if < 95
$self->{warningrange} =~ /(\d+):/;
$level = $ERRORS{WARNING} if $value < $1;
$self->{criticalrange} =~ /(\d+):/;
$level = $ERRORS{CRITICAL} if $value < $1;
}
return $level;
#
# syntax error must be reported with returncode -1
#
}
sub add_nagios {
my $self = shift;
my $level = shift;
my $message = shift;
push(@{$self->{nagios}->{messages}->{$level}}, $message);
# recalc current level
foreach my $llevel qw(CRITICAL WARNING UNKNOWN OK) {
if (scalar(@{$self->{nagios}->{messages}->{$ERRORS{$llevel}}})) {
$self->{nagios_level} = $ERRORS{$llevel};
}
}
}
sub add_nagios_ok {
my $self = shift;
my $message = shift;
$self->add_nagios($ERRORS{OK}, $message);
}
sub add_nagios_warning {
my $self = shift;
my $message = shift;
$self->add_nagios($ERRORS{WARNING}, $message);
}
sub add_nagios_critical {
my $self = shift;
my $message = shift;
$self->add_nagios($ERRORS{CRITICAL}, $message);
}
sub add_nagios_unknown {
my $self = shift;
my $message = shift;
$self->add_nagios($ERRORS{UNKNOWN}, $message);
}
sub add_perfdata {
my $self = shift;
my $data = shift;
push(@{$self->{nagios}->{perfdata}}, $data);
}
sub merge_nagios {
my $self = shift;
my $child = shift;
foreach my $level (0..3) {
foreach (@{$child->{nagios}->{messages}->{$level}}) {
$self->add_nagios($level, $_);
}
#push(@{$self->{nagios}->{messages}->{$level}},
# @{$child->{nagios}->{messages}->{$level}});
}
push(@{$self->{nagios}->{perfdata}}, @{$child->{nagios}->{perfdata}});
}
sub calculate_result {
my $self = shift;
if ($ENV{NRPE_MULTILINESUPPORT} &&
length join(" ", @{$self->{nagios}->{perfdata}}) > 200) {
foreach my $level ("CRITICAL", "WARNING", "UNKNOWN", "OK") {
# first the bad news
if (scalar(@{$self->{nagios}->{messages}->{$ERRORS{$level}}})) {
$self->{nagios_message} .=
"\n".join("\n", @{$self->{nagios}->{messages}->{$ERRORS{$level}}});
}
}
$self->{nagios_message} =~ s/^\n//g;
$self->{perfdata} = join("\n", @{$self->{nagios}->{perfdata}});
} else {
foreach my $level ("CRITICAL", "WARNING", "UNKNOWN", "OK") {
# first the bad news
if (scalar(@{$self->{nagios}->{messages}->{$ERRORS{$level}}})) {
$self->{nagios_message} .=
join(", ", @{$self->{nagios}->{messages}->{$ERRORS{$level}}}).", ";
}
}
$self->{nagios_message} =~ s/, $//g;
$self->{perfdata} = join(" ", @{$self->{nagios}->{perfdata}});
}
foreach my $level ("OK", "UNKNOWN", "WARNING", "CRITICAL") {
if (scalar(@{$self->{nagios}->{messages}->{$ERRORS{$level}}})) {
$self->{nagios_level} = $ERRORS{$level};
}
}
}
sub debug {
my $self = shift;
my $msg = shift;
if ($DBD::MSSQL::Server::verbose) {
printf "%s %s\n", $msg, ref($self);
}
}
sub dbconnect {
my $self = shift;
my %params = @_;
my $retval = undef;
$self->{tic} = Time::HiRes::time();
$self->{handle} = DBD::MSSQL::Server::Connection->new(%params);
if ($self->{handle}->{errstr}) {
if ($self->{handle}->{errstr} eq "alarm\n") {
$self->add_nagios($ERRORS{CRITICAL},
sprintf "connection could not be established within %d seconds",
$self->{timeout});
} else {
$self->add_nagios($ERRORS{CRITICAL},
sprintf "cannot connect to %s. %s",
($self->{server} ? $self->{server} :
($self->{hostname} ? $self->{hostname} : "unknown host")),
$self->{handle}->{errstr});
$retval = undef;
}
} else {
$retval = $self->{handle};
}
$self->{tac} = Time::HiRes::time();
return $retval;
}
sub trace {
my $self = shift;
my $format = shift;
if (! @_) {
# falls im sql-statement % vorkommen. sonst krachts im printf
$format =~ s/%/%%/g;
}
$self->{trace} = -f "/tmp/check_mssql_health.trace" ? 1 : 0;
if ($DBD::MSSQL::Server::verbose) {
printf("%s: ", scalar localtime);
printf($format, @_);
}
if ($self->{trace}) {
my $logfh = new IO::File;
$logfh->autoflush(1);
if ($logfh->open("/tmp/check_mssql_health.trace", "a")) {
$logfh->printf("%s: ", scalar localtime);
$logfh->printf($format, @_);
$logfh->printf("\n");
$logfh->close();
}
}
}
sub DESTROY {
my $self = shift;
my $handle1 = "null";
my $handle2 = "null";
if (defined $self->{handle}) {
$handle1 = ref($self->{handle});
if (defined $self->{handle}->{handle}) {
$handle2 = ref($self->{handle}->{handle});
}
}
$self->trace(sprintf "DESTROY %s with handle %s %s", ref($self), $handle1, $handle2);
if (ref($self) eq "DBD::MSSQL::Server") {
}
$self->trace(sprintf "DESTROY %s exit with handle %s %s", ref($self), $handle1, $handle2);
if (ref($self) eq "DBD::MSSQL::Server") {
#printf "humpftata\n";
}
}
sub save_state {
my $self = shift;
my %params = @_;
my $extension = "";
mkdir $params{statefilesdir} unless -d $params{statefilesdir};
my $statefile = sprintf "%s/%s_%s",
$params{statefilesdir}, ($params{hostname} || $params{server}), $params{mode};
$extension .= $params{differenciator} ? "_".$params{differenciator} : "";
$extension .= $params{port} ? "_".$params{port} : "";
$extension .= $params{database} ? "_".$params{database} : "";
$extension .= $params{name} ? "_".$params{name} : "";
$extension =~ s/\//_/g;
$extension =~ s/\(/_/g;
$extension =~ s/\)/_/g;
$extension =~ s/\*/_/g;
$extension =~ s/\s/_/g;
$statefile .= $extension;
$statefile = lc $statefile;
open(STATE, ">$statefile");
if ((ref($params{save}) eq "HASH") && exists $params{save}->{timestamp}) {
$params{save}->{localtime} = scalar localtime $params{save}->{timestamp};
}
printf STATE Data::Dumper::Dumper($params{save});
close STATE;
$self->debug(sprintf "saved %s to %s",
Data::Dumper::Dumper($params{save}), $statefile);
}
sub load_state {
my $self = shift;
my %params = @_;
my $extension = "";
my $statefile = sprintf "%s/%s_%s",
$params{statefilesdir}, ($params{hostname} || $params{server}), $params{mode};
$extension .= $params{differenciator} ? "_".$params{differenciator} : "";
$extension .= $params{port} ? "_".$params{port} : "";
$extension .= $params{database} ? "_".$params{database} : "";
$extension .= $params{name} ? "_".$params{name} : "";
$extension =~ s/\//_/g;
$extension =~ s/\(/_/g;
$extension =~ s/\)/_/g;
$extension =~ s/\*/_/g;
$extension =~ s/\s/_/g;
$statefile .= $extension;
$statefile = lc $statefile;
if ( -f $statefile) {
our $VAR1;
eval {
require $statefile;
};
if($@) {
printf "rumms\n";
}
$self->debug(sprintf "load %s", Data::Dumper::Dumper($VAR1));
return $VAR1;
} else {
return undef;
}
}
sub valdiff {
my $self = shift;
my $pparams = shift;
my %params = %{$pparams};
my @keys = @_;
my $last_values = $self->load_state(%params) || eval {
my $empty_events = {};
foreach (@keys) {
$empty_events->{$_} = 0;
}
$empty_events->{timestamp} = 0;
$empty_events;
};
foreach (@keys) {
$last_values->{$_} = 0 if ! exists $last_values->{$_};
if ($self->{$_} >= $last_values->{$_}) {
$self->{'delta_'.$_} = $self->{$_} - $last_values->{$_};
} else {
# vermutlich db restart und zaehler alle auf null
$self->{'delta_'.$_} = $self->{$_};
}
$self->debug(sprintf "delta_%s %f", $_, $self->{'delta_'.$_});
}
$self->{'delta_timestamp'} = time - $last_values->{timestamp};
$params{save} = eval {
my $empty_events = {};
foreach (@keys) {
$empty_events->{$_} = $self->{$_};
}
$empty_events->{timestamp} = time;
$empty_events;
};
$self->save_state(%params);
}
sub requires_version {
my $self = shift;
my $version = shift;
my @instances = DBD::MSSQL::Server::return_servers();
my $instversion = $instances[0]->{version};
if (! $self->version_is_minimum($version)) {
$self->add_nagios($ERRORS{UNKNOWN},
sprintf "not implemented/possible for MSSQL release %s", $instversion);
}
}
sub version_is_minimum {
# the current version is newer or equal
my $self = shift;
my $version = shift;
my $newer = 1;
my @instances = DBD::MSSQL::Server::return_servers();
my @v1 = map { $_ eq "x" ? 0 : $_ } split(/\./, $version);
my @v2 = split(/\./, $instances[0]->{version});
if (scalar(@v1) > scalar(@v2)) {
push(@v2, (0) x (scalar(@v1) - scalar(@v2)));
} elsif (scalar(@v2) > scalar(@v1)) {
push(@v1, (0) x (scalar(@v2) - scalar(@v1)));
}
foreach my $pos (0..$#v1) {
if ($v2[$pos] > $v1[$pos]) {
$newer = 1;
last;
} elsif ($v2[$pos] < $v1[$pos]) {
$newer = 0;
last;
}
}
#printf STDERR "check if %s os minimum %s\n", join(".", @v2), join(".", @v1);
return $newer;
}
sub instance_rac {
my $self = shift;
my @instances = DBD::MSSQL::Server::return_servers();
return (lc $instances[0]->{parallel} eq "yes") ? 1 : 0;
}
sub instance_thread {
my $self = shift;
my @instances = DBD::MSSQL::Server::return_servers();
return $instances[0]->{thread};
}
sub windows_server {
my $self = shift;
my @instances = DBD::MSSQL::Server::return_servers();
if ($instances[0]->{os} =~ /Win/i) {
return 1;
} else {
return 0;
}
}
sub system_vartmpdir {
my $self = shift;
if ($^O =~ /MSWin/) {
return $self->system_tmpdir();
} else {
return "/var/tmp/check_mssql_health";
}
}
sub system_oldvartmpdir {
my $self = shift;
return "/tmp";
}
sub system_tmpdir {
my $self = shift;
if ($^O =~ /MSWin/) {
return $ENV{TEMP} if defined $ENV{TEMP};
return $ENV{TMP} if defined $ENV{TMP};
return File::Spec->catfile($ENV{windir}, 'Temp')
if defined $ENV{windir};
return 'C:\Temp';
} else {
return "/tmp";
}
}
package DBD::MSSQL::Server::Connection;
use strict;
our @ISA = qw(DBD::MSSQL::Server);
sub new {
my $class = shift;
my %params = @_;
my $self = {
mode => $params{mode},
timeout => $params{timeout},
method => $params{method} || "dbi",
hostname => $params{hostname},
username => $params{username},
password => $params{password},
port => $params{port} || 1433,
server => $params{server},
handle => undef,
};
bless $self, $class;
if ($params{method} eq "dbi") {
bless $self, "DBD::MSSQL::Server::Connection::Dbi";
} elsif ($params{method} eq "tsql") {
bless $self, "DBD::MSSQL::Server::Connection::Tsql";
} elsif ($params{method} eq "sqlrelay") {
bless $self, "DBD::MSSQL::Server::Connection::Sqlrelay";
}
$self->init(%params);
return $self;
}
sub get_instance_names {
my $self = shift;
my $object_name = shift;
my $servicename = DBD::MSSQL::Server::return_first_server()->{servicename};
if ($object_name =~ /SQLServer:(.*)/) {
$object_name = $servicename.':'.$1;
}
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
return $self->fetchall_array(q{
SELECT
DISTINCT instance_name
FROM
sys.dm_os_performance_counters
WHERE
object_name = ?
}, $object_name);
} else {
return $self->fetchall_array(q{
SELECT
DISTINCT instance_name
FROM
master.dbo.sysperfinfo
WHERE
object_name = ?
}, $object_name);
}
}
sub get_perf_counter {
my $self = shift;
my $object_name = shift;
my $counter_name = shift;
my $servicename = DBD::MSSQL::Server::return_first_server()->{servicename};
if ($object_name =~ /SQLServer:(.*)/) {
$object_name = $servicename.':'.$1;
}
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
return $self->fetchrow_array(q{
SELECT
cntr_value
FROM
sys.dm_os_performance_counters
WHERE
counter_name = ? AND
object_name = ?
}, $counter_name, $object_name);
} else {
return $self->fetchrow_array(q{
SELECT
cntr_value
FROM
master.dbo.sysperfinfo
WHERE
counter_name = ? AND
object_name = ?
}, $counter_name, $object_name);
}
}
sub get_perf_counter_instance {
my $self = shift;
my $object_name = shift;
my $counter_name = shift;
my $instance_name = shift;
my $servicename = DBD::MSSQL::Server::return_first_server()->{servicename};
if ($object_name =~ /SQLServer:(.*)/) {
$object_name = $servicename.':'.$1;
}
if (DBD::MSSQL::Server::return_first_server()->version_is_minimum("9.x")) {
return $self->fetchrow_array(q{
SELECT
cntr_value
FROM
sys.dm_os_performance_counters
WHERE
counter_name = ? AND
object_name = ? AND
instance_name = ?
}, $counter_name, $object_name, $instance_name);
} else {
return $self->fetchrow_array(q{
SELECT
cntr_value
FROM
master.dbo.sysperfinfo
WHERE
counter_name = ? AND
object_name = ? AND
instance_name = ?
}, $counter_name, $object_name, $instance_name);
}
}
package DBD::MSSQL::Server::Connection::Dbi;
use strict;
use Net::Ping;
our @ISA = qw(DBD::MSSQL::Server::Connection);
sub init {
my $self = shift;
my %params = @_;
my $retval = undef;
if ($self->{mode} =~ /^server::tnsping/) {
# erstmal reserviert fuer irgendeinen tcp-connect
if (! $self->{connect}) {
$self->{errstr} = "Please specify a database";
} else {
$self->{sid} = $self->{connect};
$self->{username} ||= time; # prefer an existing user
$self->{password} = time;
}
} else {
if ((! $self->{hostname} && ! $self->{server}) ||
! $self->{username} || ! $self->{password}) {
$self->{errstr} = "Please specify hostname or server, username and password";
return undef;
}
$self->{dsn} = "DBI:Sybase:";
if ($self->{hostname}) {
$self->{dsn} .= sprintf ";host=%s", $self->{hostname};
$self->{dsn} .= sprintf ";port=%s", $self->{port};
} else {
$self->{dsn} .= sprintf ";server=%s", $self->{server};
}
}
if (! exists $self->{errstr}) {
eval {
require DBI;
use POSIX ':signal_h';
local $SIG{'ALRM'} = sub {
die "alarm\n";
};
my $mask = POSIX::SigSet->new( SIGALRM );
my $action = POSIX::SigAction->new(
sub { die "alarm\n" ; }, $mask);
my $oldaction = POSIX::SigAction->new();
sigaction(SIGALRM ,$action ,$oldaction );
alarm($self->{timeout} - 1); # 1 second before the global unknown timeout
if ($self->{handle} = DBI->connect(
$self->{dsn},
$self->{username},
$self->{password},
{ RaiseError => 1, AutoCommit => 0, PrintError => 1 })) {
$retval = $self;
} else {
# doesnt seem to work $self->{errstr} = DBI::errstr();
$self->{errstr} = "connect failed";
return undef;
}
};
if ($@) {
$self->{errstr} = $@;
$retval = undef;
}
}
$self->{tac} = Time::HiRes::time();
return $retval;
}
sub fetchrow_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my @row = ();
eval {
$self->trace(sprintf "SQL:\n%s\nARGS:\n%s\n",
$sql, Data::Dumper::Dumper(\@arguments));
$sth = $self->{handle}->prepare($sql);
if (scalar(@arguments)) {
$sth->execute(@arguments) || die DBI::errstr();
} else {
$sth->execute() || die DBI::errstr();
}
if (lc $sql =~ /^(exec |sp_)/) {
# flatten the result sets
do {
while (my $aref = $sth->fetchrow_arrayref()) {
push(@row, @{$aref});
}
} while ($sth->{syb_more_results});
} else {
@row = $sth->fetchrow_array();
}
$self->trace(sprintf "RESULT:\n%s\n",
Data::Dumper::Dumper(\@row));
};
if ($@) {
$self->debug(sprintf "bumm %s", $@);
}
if (-f "/tmp/check_mssql_health_simulation/".$self->{mode}) {
my $simulation = do { local (@ARGV, $/) =
"/tmp/check_mssql_health_simulation/".$self->{mode}; <> };
@row = split(/\s+/, (split(/\n/, $simulation))[0]);
}
return $row[0] unless wantarray;
return @row;
}
sub fetchall_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my $rows = undef;
eval {
$self->trace(sprintf "SQL:\n%s\nARGS:\n%s\n",
$sql, Data::Dumper::Dumper(\@arguments));
$sth = $self->{handle}->prepare($sql);
if (scalar(@arguments)) {
$sth->execute(@arguments);
} else {
$sth->execute();
}
$rows = $sth->fetchall_arrayref();
$self->trace(sprintf "RESULT:\n%s\n",
Data::Dumper::Dumper($rows));
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
if (-f "/tmp/check_mssql_health_simulation/".$self->{mode}) {
my $simulation = do { local (@ARGV, $/) =
"/tmp/check_mssql_health_simulation/".$self->{mode}; <> };
@{$rows} = map { [ split(/\s+/, $_) ] } split(/\n/, $simulation);
}
return @{$rows};
}
sub exec_sp_1hash {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my $rows = undef;
eval {
$self->trace(sprintf "SQL:\n%s\nARGS:\n%s\n",
$sql, Data::Dumper::Dumper(\@arguments));
$sth = $self->{handle}->prepare($sql);
if (scalar(@arguments)) {
$sth->execute(@arguments);
} else {
$sth->execute();
}
do {
while (my $href = $sth->fetchrow_hashref()) {
foreach (keys %{$href}) {
push(@{$rows}, [ $_, $href->{$_} ]);
}
}
} while ($sth->{syb_more_results});
$self->trace(sprintf "RESULT:\n%s\n",
Data::Dumper::Dumper($rows));
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
return @{$rows};
}
sub execute {
my $self = shift;
my $sql = shift;
eval {
my $sth = $self->{handle}->prepare($sql);
$sth->execute();
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
}
sub DESTROY {
my $self = shift;
$self->trace(sprintf "disconnecting DBD %s",
$self->{handle} ? "with handle" : "without handle");
$self->{handle}->disconnect() if $self->{handle};
}
package DBD::MSSQL::Server::Connection::Tsql;
use strict;
use File::Temp qw/tempfile/;
our @ISA = qw(DBD::MSSQL::Server::Connection);
sub init {
my $self = shift;
my %params = @_;
my $retval = undef;
$self->{loginstring} = "traditional";
($self->{sql_commandfile_handle}, $self->{sql_commandfile}) =
tempfile($self->{mode}."XXXXX", SUFFIX => ".sql",
DIR => $self->system_tmpdir() );
close $self->{sql_commandfile_handle};
($self->{sql_resultfile_handle}, $self->{sql_resultfile}) =
tempfile($self->{mode}."XXXXX", SUFFIX => ".out",
DIR => $self->system_tmpdir() );
close $self->{sql_resultfile_handle};
if ($self->{mode} =~ /^server::tnsping/) {
if (! $self->{connect}) {
$self->{errstr} = "Please specify a database";
} else {
$self->{sid} = $self->{connect};
$self->{user} ||= time; # prefer an existing user
$self->{password} = time;
}
} else {
if ($self->{connect} && ! $self->{user} && ! $self->{password} &&
$self->{connect} =~ /(\w+)\/(\w+)@(\w+)/) {
# --connect nagios/oradbmon@bba
$self->{connect} = $3;
$self->{user} = $1;
$self->{password} = $2;
$self->{sid} = $self->{connect};
if ($self->{user} eq "sys") {
delete $ENV{TWO_TASK};
$self->{loginstring} = "sys";
} else {
$self->{loginstring} = "traditional";
}
} elsif ($self->{connect} && ! $self->{user} && ! $self->{password} &&
$self->{connect} =~ /sysdba@(\w+)/) {
# --connect sysdba@bba
$self->{connect} = $1;
$self->{user} = "/";
$self->{sid} = $self->{connect};
$self->{loginstring} = "sysdba";
} elsif ($self->{connect} && ! $self->{user} && ! $self->{password} &&
$self->{connect} =~ /(\w+)/) {
# --connect bba
$self->{connect} = $1;
# maybe this is a os authenticated user
delete $ENV{TWO_TASK};
$self->{sid} = $self->{connect};
if ($^O ne "hpux") { #hpux && 1.21 only accepts "DBI:MSSQL:SID"
$self->{connect} = ""; #linux 1.20 only accepts "DBI:MSSQL:" + MSSQL_SID
}
$self->{user} = '/';
$self->{password} = "";
$self->{loginstring} = "extauth";
} elsif ($self->{user} &&
$self->{user} =~ /^\/@(\w+)/) {
# --user /@ubba1
$self->{user} = $1;
$self->{sid} = $self->{connect};
$self->{loginstring} = "passwordstore";
} elsif ($self->{connect} && $self->{user} && ! $self->{password} &&
$self->{user} eq "sysdba") {
# --connect bba --user sysdba
$self->{connect} = $1;
$self->{user} = "/";
$self->{sid} = $self->{connect};
$self->{loginstring} = "sysdba";
} elsif ($self->{connect} && $self->{user} && $self->{password}) {
# --connect bba --user nagios --password oradbmon
$self->{sid} = $self->{connect};
$self->{loginstring} = "traditional";
} else {
$self->{errstr} = "Please specify database, username and password";
return undef;
}
}
if (! exists $self->{errstr}) {
eval {
$ENV{MSSQL_SID} = $self->{sid};
$ENV{PATH} = $ENV{MSSQL_HOME}."/bin".
(defined $ENV{PATH} ?
":".$ENV{PATH} : "");
$ENV{LD_LIBRARY_PATH} = $ENV{MSSQL_HOME}."/lib".
(defined $ENV{LD_LIBRARY_PATH} ?
":".$ENV{LD_LIBRARY_PATH} : "");
# am 30.9.2008 hat perl das /bin/sqlplus in $ENV{MSSQL_HOME}.'/bin/sqlplus'
# eiskalt evaluiert und
# /u00/app/mssql/product/11.1.0/db_1/u00/app/mssql/product/11.1.0/db_1/bin/sqlplus
# draus gemacht. Leider nicht in Mini-Scripts reproduzierbar, sondern nur hier.
# Das ist der Grund fuer die vielen ' und .
my $sqlplus = $ENV{MSSQL_HOME}.'/'.'bin'.'/'.'sqlplus';
if ((-x $ENV{MSSQL_HOME}.'/'.'sqlplus') && ( -f $ENV{MSSQL_HOME}.'/'.'sqlplus')) {
$sqlplus = $ENV{MSSQL_HOME}.'/'.'sqlplus';
}
my $tnsping = $ENV{MSSQL_HOME}.'/'.'bin'.'/'.'tnsping';
if (! -x $sqlplus) {
die "nosqlplus\n";
}
if ($self->{mode} =~ /^server::tnsping/) {
if ($self->{loginstring} eq "traditional") {
$self->{sqlplus} = sprintf "%s -S %s/%s@%s < /dev/null",
$sqlplus,
$self->{user}, $self->{password}, $self->{sid};
} elsif ($self->{loginstring} eq "extauth") {
$self->{sqlplus} = sprintf "%s -S / < /dev/null",
$sqlplus;
} elsif ($self->{loginstring} eq "passwordstore") {
$self->{sqlplus} = sprintf "%s -S /@%s < /dev/null",
$sqlplus,
$self->{user};
} elsif ($self->{loginstring} eq "sysdba") {
$self->{sqlplus} = sprintf "%s -S / as sysdba < /dev/null",
$sqlplus;
} elsif ($self->{loginstring} eq "sys") {
$self->{sqlplus} = sprintf "%s -S %s/%s@%s as sysdba < /dev/null",
$sqlplus,
$self->{user}, $self->{password}, $self->{sid};
}
} else {
if ($self->{loginstring} eq "traditional") {
$self->{sqlplus} = sprintf "%s -S %s/%s@%s < %s > %s",
$sqlplus,
$self->{user}, $self->{password}, $self->{sid},
$self->{sql_commandfile}, $self->{sql_resultfile};
} elsif ($self->{loginstring} eq "extauth") {
$self->{sqlplus} = sprintf "%s -S / < %s > %s",
$sqlplus,
$self->{sql_commandfile}, $self->{sql_resultfile};
} elsif ($self->{loginstring} eq "passwordstore") {
$self->{sqlplus} = sprintf "%s -S /@%s < %s > %s",
$sqlplus,
$self->{user},
$self->{sql_commandfile}, $self->{sql_resultfile};
} elsif ($self->{loginstring} eq "sysdba") {
$self->{sqlplus} = sprintf "%s -S / as sysdba < %s > %s",
$sqlplus,
$self->{sql_commandfile}, $self->{sql_resultfile};
} elsif ($self->{loginstring} eq "sys") {
$self->{sqlplus} = sprintf "%s -S %s/%s@%s as sysdba < %s > %s",
$sqlplus,
$self->{user}, $self->{password}, $self->{sid},
$self->{sql_commandfile}, $self->{sql_resultfile};
}
}
use POSIX ':signal_h';
local $SIG{'ALRM'} = sub {
die "alarm\n";
};
my $mask = POSIX::SigSet->new( SIGALRM );
my $action = POSIX::SigAction->new(
sub { die "alarm\n" ; }, $mask);
my $oldaction = POSIX::SigAction->new();
sigaction(SIGALRM ,$action ,$oldaction );
alarm($self->{timeout} - 1); # 1 second before the global unknown timeout
if ($self->{mode} =~ /^server::tnsping/) {
if (-x $tnsping) {
my $exit_output = `$tnsping $self->{sid}`;
if ($?) {
# printf STDERR "tnsping exit bumm \n";
# immer 1 bei misserfolg
}
if ($exit_output =~ /^OK \(\d+/m) {
die "ORA-01017"; # fake a successful connect with wrong password
} elsif ($exit_output =~ /^(TNS\-\d+)/m) {
die $1;
} else {
die "TNS-03505";
}
} else {
my $exit_output = `$self->{sqlplus}`;
if ($?) {
printf STDERR "ping exit bumm \n";
}
$exit_output =~ s/\n//g;
$exit_output =~ s/at $0//g;
chomp $exit_output;
die $exit_output;
}
} else {
my $answer = $self->fetchrow_array(
q{ SELECT 42 FROM dual});
die unless defined $answer and $answer == 42;
}
$retval = $self;
};
if ($@) {
$self->{errstr} = $@;
$self->{errstr} =~ s/at $0 .*//g;
chomp $self->{errstr};
$retval = undef;
}
}
$self->{tac} = Time::HiRes::time();
return $retval;
}
sub fetchrow_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my @row = ();
foreach (@arguments) {
# replace the ? by the parameters
if (/^\d+$/) {
$sql =~ s/\?/$_/;
} else {
$sql =~ s/\?/'$_'/;
}
}
$self->create_commandfile($sql);
my $exit_output = `$self->{sqlplus}`;
if ($?) {
printf STDERR "fetchrow_array exit bumm \n";
my $output = do { local (@ARGV, $/) = $self->{sql_resultfile}; <> };
my @oerrs = map {
/(ORA\-\d+:.*)/ ? $1 : ();
} split(/\n/, $output);
$self->{errstr} = join(" ", @oerrs);
} else {
my $output = do { local (@ARGV, $/) = $self->{sql_resultfile}; <> };
@row = map { convert($_) }
map { s/^\s+([\.\d]+)$/$1/g; $_ } # strip leading space from numbers
map { s/\s+$//g; $_ } # strip trailing space
split(/\|/, (split(/\n/, $output))[0]);
}
if ($@) {
$self->debug(sprintf "bumm %s", $@);
}
unlink $self->{sql_commandfile};
unlink $self->{sql_resultfile};
return $row[0] unless wantarray;
return @row;
}
sub fetchall_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my $rows = undef;
foreach (@arguments) {
# replace the ? by the parameters
if (/^\d+$/) {
$sql =~ s/\?/$_/;
} else {
$sql =~ s/\?/'$_'/;
}
}
$self->create_commandfile($sql);
my $exit_output = `$self->{sqlplus}`;
if ($?) {
printf STDERR "fetchrow_array exit bumm %s\n", $exit_output;
my $output = do { local (@ARGV, $/) = $self->{sql_resultfile}; <> };
my @oerrs = map {
/(ORA\-\d+:.*)/ ? $1 : ();
} split(/\n/, $output);
$self->{errstr} = join(" ", @oerrs);
} else {
my $output = do { local (@ARGV, $/) = $self->{sql_resultfile}; <> };
my @rows = map { [
map { convert($_) }
map { s/^\s+([\.\d]+)$/$1/g; $_ }
map { s/\s+$//g; $_ }
split /\|/
] } grep { ! /^\d+ rows selected/ }
grep { ! /^Elapsed: / }
grep { ! /^\s*$/ } split(/\n/, $output);
$rows = \@rows;
}
if ($@) {
$self->debug(sprintf "bumm %s", $@);
}
unlink $self->{sql_commandfile};
unlink $self->{sql_resultfile};
return @{$rows};
}
sub func {
my $self = shift;
my $function = shift;
$self->{handle}->func(@_);
}
sub convert {
my $n = shift;
# mostly used to convert numbers in scientific notation
if ($n =~ /^\s*\d+\s*$/) {
return $n;
} elsif ($n =~ /^\s*([-+]?)(\d*[\.,]*\d*)[eE]{1}([-+]?)(\d+)\s*$/) {
my ($vor, $num, $sign, $exp) = ($1, $2, $3, $4);
$n =~ s/E/e/g;
$n =~ s/,/\./g;
$num =~ s/,/\./g;
my $sig = $sign eq '-' ? "." . ($exp - 1 + length $num) : '';
my $dec = sprintf "%${sig}f", $n;
$dec =~ s/\.[0]+$//g;
return $dec;
} elsif ($n =~ /^\s*([-+]?)(\d+)[\.,]*(\d*)\s*$/) {
return $1.$2.".".$3;
} elsif ($n =~ /^\s*(.*?)\s*$/) {
return $1;
} else {
return $n;
}
}
sub execute {
my $self = shift;
my $sql = shift;
eval {
my $sth = $self->{handle}->prepare($sql);
$sth->execute();
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
}
sub DESTROY {
my $self = shift;
$self->trace("try to clean up command and result files");
unlink $self->{sql_commandfile} if -f $self->{sql_commandfile};
unlink $self->{sql_resultfile} if -f $self->{sql_resultfile};
}
sub create_commandfile {
my $self = shift;
my $sql = shift;
open CMDCMD, "> $self->{sql_commandfile}";
printf CMDCMD "SET HEADING OFF\n";
printf CMDCMD "SET PAGESIZE 0\n";
printf CMDCMD "SET LINESIZE 32767\n";
printf CMDCMD "SET COLSEP '|'\n";
printf CMDCMD "SET TAB OFF\n";
printf CMDCMD "SET TRIMSPOOL ON\n";
printf CMDCMD "SET NUMFORMAT 9.999999EEEE\n";
printf CMDCMD "SPOOL %s\n", $self->{sql_resultfile};
# printf CMDCMD "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='.,';\n/\n";
printf CMDCMD "%s\n/\n", $sql;
printf CMDCMD "EXIT\n";
close CMDCMD;
}
package DBD::MSSQL::Server::Connection::Sqlrelay;
use strict;
use Net::Ping;
our @ISA = qw(DBD::MSSQL::Server::Connection);
sub init {
my $self = shift;
my %params = @_;
my $retval = undef;
if ($self->{mode} =~ /^server::tnsping/) {
} else {
if (! $self->{hostname} || ! $self->{username} || ! $self->{password} || ! $self->{port}) {
$self->{errstr} = "Please specify database, username and password";
return undef;
}
}
if (! exists $self->{errstr}) {
eval {
require DBI;
use POSIX ':signal_h';
local $SIG{'ALRM'} = sub {
die "alarm\n";
};
my $mask = POSIX::SigSet->new( SIGALRM );
my $action = POSIX::SigAction->new(
sub { die "alarm\n" ; }, $mask);
my $oldaction = POSIX::SigAction->new();
sigaction(SIGALRM ,$action ,$oldaction );
alarm($self->{timeout} - 1); # 1 second before the global unknown timeout
if ($self->{handle} = DBI->connect(
#sprintf("DBI:SQLRelay:host=%s;port=%d;socket=%s",
sprintf("DBI:SQLRelay:host=%s;port=%d;",
$self->{hostname}, $self->{port}),
$self->{username},
$self->{password},
{ RaiseError => 1, AutoCommit => 0, PrintError => 1 })) {
} else {
$self->{errstr} = DBI::errstr();
}
};
if ($@) {
$self->{errstr} = $@;
$self->{errstr} =~ s/at [\w\/\.]+ line \d+.*//g;
$retval = undef;
}
}
$self->{tac} = Time::HiRes::time();
return $retval;
}
sub fetchrow_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my @row = ();
my $new_dbh = $self->{handle}->clone();
$self->trace(sprintf "fetchrow_array: %s", $sql);
#
# does not work with bind variables
#
while ($sql =~ /\?/) {
my $param = shift @arguments;
if ($param !~ /^\d+$/) {
$param = $self->{handle}->quote($param);
}
$sql =~ s/\?/$param/;
}
$sql =~ s/^\s*//g;
$sql =~ s/\s*$//g;
eval {
$sth = $self->{handle}->prepare($sql);
if (scalar(@arguments)) {
$sth->execute(@arguments);
} else {
$sth->execute();
}
@row = $sth->fetchrow_array();
$sth->finish();
};
if ($@) {
$self->debug(sprintf "bumm %s", $@);
}
# without this trick, there are error messages like
# "No server-side cursors were available to process the query"
# and the results are messed up.
$self->{handle}->disconnect();
$self->{handle} = $new_dbh;
if (-f "/tmp/check_mssql_health_simulation/".$self->{mode}) {
my $simulation = do { local (@ARGV, $/) =
"/tmp/check_mssql_health_simulation/".$self->{mode}; <> };
@row = split(/\s+/, (split(/\n/, $simulation))[0]);
}
return $row[0] unless wantarray;
return @row;
}
sub fetchall_array {
my $self = shift;
my $sql = shift;
my @arguments = @_;
my $sth = undef;
my $rows = undef;
my $new_dbh = $self->{handle}->clone();
$self->trace(sprintf "fetchall_array: %s", $sql);
while ($sql =~ /\?/) {
my $param = shift @arguments;
if ($param !~ /^\d+$/) {
$param = $self->{handle}->quote($param);
}
$sql =~ s/\?/$param/;
}
eval {
$sth = $self->{handle}->prepare($sql);
if (scalar(@arguments)) {
$sth->execute(@arguments);
} else {
$sth->execute();
}
$rows = $sth->fetchall_arrayref();
my $asrows = $sth->fetchall_arrayref();
$sth->finish();
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
$self->{handle}->disconnect();
$self->{handle} = $new_dbh;
if (-f "/tmp/check_mssql_health_simulation/".$self->{mode}) {
my $simulation = do { local (@ARGV, $/) =
"/tmp/check_mssql_health_simulation/".$self->{mode}; <> };
@{$rows} = map { [ split(/\s+/, $_) ] } split(/\n/, $simulation);
}
return @{$rows};
}
sub func {
my $self = shift;
$self->{handle}->func(@_);
}
sub execute {
my $self = shift;
my $sql = shift;
eval {
my $sth = $self->{handle}->prepare($sql);
$sth->execute();
};
if ($@) {
printf STDERR "bumm %s\n", $@;
}
}
sub DESTROY {
my $self = shift;
#$self->trace(sprintf "disconnecting DBD %s",
# $self->{handle} ? "with handle" : "without handle");
#$self->{handle}->disconnect() if $self->{handle};
}
package main;
use strict;
use Getopt::Long qw(:config no_ignore_case);
use File::Basename;
use lib dirname($0);
use vars qw ($PROGNAME $REVISION $CONTACT $TIMEOUT $STATEFILESDIR $needs_restart %commandline);
$PROGNAME = "check_mssql_health";
$REVISION = '$Revision: 1.5.3 $';
$CONTACT = 'gerhard.lausser@consol.de';
$TIMEOUT = 60;
$STATEFILESDIR = '/var/tmp/check_mssql_health';
$needs_restart = 0;
my @modes = (
['server::connectiontime',
'connection-time', undef,
'Time to connect to the server' ],
['server::cpubusy',
'cpu-busy', undef,
'Cpu busy in percent' ],
['server::iobusy',
'io-busy', undef,
'IO busy in percent' ],
['server::fullscans',
'full-scans', undef,
'Full table scans per second' ],
['server::connectedusers',
'connected-users', undef,
'Number of currently connected users' ],
['server::database::transactions',
'transactions', undef,
'Transactions per second (per database)' ],
['server::batchrequests',
'batch-requests', undef,
'Batch requests per second' ],
['server::latch::waits',
'latches-waits', undef,
'Number of latch requests that could not be granted immediately' ],
['server::latch::waittime',
'latches-wait-time', undef,
'Average time for a latch to wait before the request is met' ],
['server::memorypool::lock::waits',
'locks-waits', undef,
'The number of locks per second that had to wait' ],
['server::memorypool::lock::timeouts',
'locks-timeouts', undef,
'The number of locks per second that timed out' ],
['server::memorypool::lock::deadlocks',
'locks-deadlocks', undef,
'The number of deadlocks per second' ],
['server::sql::recompilations',
'sql-recompilations', undef,
'Re-Compilations per second' ],
['server::sql::initcompilations',
'sql-initcompilations', undef,
'Initial compilations per second' ],
['server::totalmemory',
'total-server-memory', undef,
'The amount of memory that SQL Server has allocated to it' ],
['server::memorypool::buffercache::hitratio',
'mem-pool-data-buffer-hit-ratio', ['buffer-cache-hit-ratio'],
'Data Buffer Cache Hit Ratio' ],
['server::memorypool::buffercache::hitratio',
'mem-pool-data-buffer-hit-ratio', ['buffer-cache-hit-ratio'],
'Data Buffer Cache Hit Ratio' ],
['server::memorypool::buffercache::lazywrites',
'lazy-writes', undef,
'Lazy writes per second' ],
['server::memorypool::buffercache::pagelifeexpectancy',
'page-life-expectancy', undef,
'Seconds a page is kept in memory before being flushed' ],
['server::memorypool::buffercache::freeliststalls',
'free-list-stalls', undef,
'Requests per second that had to wait for a free page' ],
['server::memorypool::buffercache::checkpointpages',
'checkpoint-pages', undef,
'Dirty pages flushed to disk per second. (usually by a checkpoint)' ],
['server::database::databasefree',
'database-free', undef,
'Free space in database' ],
['server::database::backupage',
'backup-age', undef,
'Elapsed time (in hours) since a database was last backupped' ],
['server::sql',
'sql', undef,
'any sql command returning a single number' ],
['server::database::listdatabases',
'list-databases', undef,
'convenience function which lists all databases' ],
['server::database::datafile::listdatafiles',
'list-datafiles', undef,
'convenience function which lists all datafiles' ],
['server::memorypool::lock::listlocks',
'list-locks', undef,
'convenience function which lists all locks' ],
);
sub print_usage () {
print <<EOUS;
Usage:
$PROGNAME [-v] [-t <timeout>] --hostname=<db server hostname>
--username=<username> --password=<password> [--port <port>]
--mode=<mode>
$PROGNAME [-h | --help]
$PROGNAME [-V | --version]
Options:
--hostname
the database server
--username
the mssql user
--password
the mssql user's password
--warning
the warning range
--critical
the critical range
--mode
the mode of the plugin. select one of the following keywords:
EOUS
my $longest = length ((reverse sort {length $a <=> length $b} map { $_->[1] } @modes)[0]);
my $format = " %-".
(length ((reverse sort {length $a <=> length $b} map { $_->[1] } @modes)[0])).
"s\t(%s)\n";
foreach (@modes) {
printf $format, $_->[1], $_->[3];
}
printf "\n";
print <<EOUS;
--name
the name of the database etc depending on the mode.
--name2
if name is a sql statement, this statement would appear in
the output and the performance data. This can be ugly, so
name2 can be used to appear instead.
--regexp
if this parameter is used, name will be interpreted as a
regular expression.
--units
one of %, KB, MB, GB. This is used for a better output of mode=sql
and for specifying thresholds for mode=tablespace-free
Database-related modes check all databases in one run by default.
If only a single database should be checked, use the --name parameter.
The same applies to datafile-related modes.
In mode sql you can url-encode the statement so you will not have to mess
around with special characters in your Nagios service definitions.
Instead of
--name="select count(*) from master..sysprocesses"
you can say
--name=select%20count%28%2A%29%20from%20master%2E%2Esysprocesses
For your convenience you can call check_mssql_health with the --encode
option and it will encode the standard input.
You can find the full documentation for this plugin at
http://www.consol.de/opensource/nagios/check-mssql-health or
http://www.consol.com/opensource/nagios/check-mssql-health
EOUS
#
# --basis
# one of rate, delta, value
}
sub print_help () {
print "Copyright (c) 2009 Gerhard Lausser\n\n";
print "\n";
print " Check various parameters of MSSQL databases \n";
print "\n";
print_usage();
support();
}
sub print_revision ($$) {
my $commandName = shift;
my $pluginRevision = shift;
$pluginRevision =~ s/^\$Revision: //;
$pluginRevision =~ s/ \$\s*$//;
print "$commandName ($pluginRevision)\n";
print "This nagios plugin comes with ABSOLUTELY NO WARRANTY. You may redistribute\ncopies of this plugin under the terms of the GNU General Public License.\n";
}
sub support () {
my $support='Send email to gerhard.lausser@consol.de if you have questions\nregarding use of this software. \nPlease include version information with all correspondence (when possible,\nuse output from the --version option of the plugin itself).\n';
$support =~ s/@/\@/g;
$support =~ s/\\n/\n/g;
print $support;
}
sub contact_author ($$) {
my $item = shift;
my $strangepattern = shift;
if ($commandline{verbose}) {
printf STDERR
"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n".
"You found a line which is not recognized by %s\n".
"This means, certain components of your system cannot be checked.\n".
"Please contact the author %s and\nsend him the following output:\n\n".
"%s /%s/\n\nThank you!\n".
"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n",
$PROGNAME, $CONTACT, $item, $strangepattern;
}
}
%commandline = ();
my @params = (
"timeout|t=i",
"version|V",
"help|h",
"verbose|v",
"debug|d",
"hostname=s",
"username=s",
"password=s",
"port=i",
"server=s",
"mode|m=s",
"tablespace=s",
"database=s",
"datafile=s",
"waitevent=s",
"namefromfile=s",
"queryfile=s",
"name=s",
"name2=s",
"regexp",
"perfdata",
"warning=s",
"critical=s",
"absolute|a",
"basis",
"lookback|l=i",
"environment|e=s%",
"method=s",
"runas|r=s",
"scream",
"shell",
"eyecandy",
"encode",
"units=s",
"3");
if (! GetOptions(\%commandline, @params)) {
print_help();
exit $ERRORS{UNKNOWN};
}
if (exists $commandline{version}) {
print_revision($PROGNAME, $REVISION);
exit $ERRORS{OK};
}
if (exists $commandline{help}) {
print_help();
exit $ERRORS{OK};
} elsif (! exists $commandline{mode}) {
printf "Please select a mode\n";
print_help();
exit $ERRORS{OK};
}
if ($commandline{mode} eq "encode") {
my $input = <>;
chomp $input;
$input =~ s/([^A-Za-z0-9])/sprintf("%%%02X", ord($1))/seg;
printf "%s\n", $input;
exit $ERRORS{OK};
}
if (!exists $commandline{queryfile} || !$commandline{queryfile}) {
$commandline{queryfile} = "/etc/nagios/check_mssql_health-queries";
}
if (exists $commandline{3}) {
$ENV{NRPE_MULTILINESUPPORT} = 1;
}
if (exists $commandline{timeout}) {
$TIMEOUT = $commandline{timeout};
}
if (exists $commandline{verbose}) {
$DBD::MSSQL::Server::verbose = exists $commandline{verbose};
}
if (exists $commandline{scream}) {
# $DBD::MSSQL::Server::hysterical = exists $commandline{scream};
}
$DBD::MSSQL::Server::my_modules_dyn_dir = '/usr/local/nagios/libexec';
if (exists $commandline{environment}) {
# if the desired environment variable values are different from
# the environment of this running script, then a restart is necessary.
# because setting $ENV does _not_ change the environment of the running script.
foreach (keys %{$commandline{environment}}) {
if ((! $ENV{$_}) || ($ENV{$_} ne $commandline{environment}->{$_})) {
$needs_restart = 1;
$ENV{$_} = $commandline{environment}->{$_};
printf STDERR "new %s=%s forces restart\n", $_, $ENV{$_}
if $DBD::MSSQL::Server::verbose;
}
}
# e.g. called with --runas dbnagio. shlib_path environment variable is stripped
# during the sudo.
# so the perl interpreter starts without a shlib_path. but --runas cares for
# a --environment shlib_path=...
# so setting the environment variable in the code above and restarting the
# perl interpreter will help it find shared libs
}
if (exists $commandline{runas}) {
# remove the runas parameter
# exec sudo $0 ... the remaining parameters
$needs_restart = 1;
# if the calling script has a path for shared libs and there is no --environment
# parameter then the called script surely needs the variable too.
foreach my $important_env qw(LD_LIBRARY_PATH SHLIB_PATH
MSSQL_HOME TNS_ADMIN ORA_NLS ORA_NLS33 ORA_NLS10) {
if ($ENV{$important_env} && ! scalar(grep { /^$important_env=/ }
keys %{$commandline{environment}})) {
$commandline{environment}->{$important_env} = $ENV{$important_env};
printf STDERR "add important --environment %s=%s\n",
$important_env, $ENV{$important_env} if $DBD::MSSQL::Server::verbose;
}
}
}
if (exists $commandline{namefromfile}) {
if (!open QF, "<$commandline{queryfile}") {
print "Unable to open queryfile $commandline{queryfile} param --queryfile\n";
print_help();
exit $ERRORS{OK};
}
my $sql = '';
while (my $l = <QF>) {
# Double chomp if needed
chomp($l) for (0..1);
$l =~ s/#.*$//g;
my ($k, $sql_line) = split(/\s*=\s*/, $l, 2);
#printf("l: %s\nk: %s sql: %s\n", $l, $k, $sql_line);
if ($k eq $commandline{namefromfile}) {
$sql = $sql_line;
last;
}
}
close QF;
if (!$sql) {
print "Unable to find namefromfile key $commandline{namefromfile} in file $commandline{queryfile}\n";
exit $ERRORS{OK};
}
$commandline{name}=$sql;
}
if ($needs_restart) {
my @newargv = ();
my $runas = undef;
if (exists $commandline{runas}) {
$runas = $commandline{runas};
delete $commandline{runas};
}
foreach my $option (keys %commandline) {
if (grep { /^$option/ && /=/ } @params) {
if (ref ($commandline{$option}) eq "HASH") {
foreach (keys %{$commandline{$option}}) {
push(@newargv, sprintf "--%s", $option);
push(@newargv, sprintf "%s=%s", $_, $commandline{$option}->{$_});
}
} else {
push(@newargv, sprintf "--%s", $option);
push(@newargv, sprintf "%s", $commandline{$option});
}
} else {
push(@newargv, sprintf "--%s", $option);
}
}
if ($runas && ($> == 0)) {
# this was not my idea. some people connect as root to their nagios clients.
exec "su", "-c", sprintf("%s %s", $0, join(" ", @newargv)), "-", $runas;
} elsif ($runas) {
exec "sudo", "-S", "-u", $runas, $0, @newargv;
} else {
exec $0, @newargv;
# this makes sure that even a SHLIB or LD_LIBRARY_PATH are set correctly
# when the perl interpreter starts. Setting them during runtime does not
# help loading e.g. libclntsh.so
}
exit;
}
if (exists $commandline{shell}) {
# forget what you see here.
system("/bin/sh");
}
if (exists $commandline{name}) {
# objects can be encoded like an url
# with s/([^A-Za-z0-9])/sprintf("%%%02X", ord($1))/seg;
if (($commandline{mode} ne "sql") ||
(($commandline{mode} eq "sql") &&
($commandline{name} =~ /select%20/i))) { # protect ... like '%cac%' ... from decoding
$commandline{name} =~ s/\%([A-Fa-f0-9]{2})/pack('C', hex($1))/seg;
}
if ($commandline{name} =~ /^0$/) {
# without this, $params{selectname} would be treated like undef
$commandline{name} = "00";
}
}
$SIG{'ALRM'} = sub {
printf "UNKNOWN - %s timed out after %d seconds\n", $PROGNAME, $TIMEOUT;
exit $ERRORS{UNKNOWN};
};
alarm($TIMEOUT);
my $nagios_level = $ERRORS{UNKNOWN};
my $nagios_message = "";
my $perfdata = "";
my $racmode = 0;
if ($commandline{mode} =~ /^rac-([^\-.]+)/) {
$racmode = 1;
$commandline{mode} =~ s/^rac\-//g;
}
if ($commandline{mode} =~ /^my-([^\-.]+)/) {
my $param = $commandline{mode};
$param =~ s/\-/::/g;
push(@modes, [$param, $commandline{mode}, undef, 'my extension']);
} elsif ((! grep { $commandline{mode} eq $_ } map { $_->[1] } @modes) &&
(! grep { $commandline{mode} eq $_ } map { defined $_->[2] ? @{$_->[2]} : () } @modes)) {
printf "UNKNOWN - mode %s\n", $commandline{mode};
print_usage();
exit 3;
}
my %params = (
timeout => $TIMEOUT,
mode => (
map { $_->[0] }
grep {
($commandline{mode} eq $_->[1]) ||
( defined $_->[2] && grep { $commandline{mode} eq $_ } @{$_->[2]})
} @modes
)[0],
racmode => $racmode,
method => $commandline{method} ||
$ENV{NAGIOS__SERVICEMSSQL_METH} ||
$ENV{NAGIOS__HOSTMSSQL_METH} || 'dbi',
hostname => $commandline{hostname} ||
$ENV{NAGIOS__SERVICEMSSQL_HOST} ||
$ENV{NAGIOS__HOSTMSSQL_HOST},
username => $commandline{username} ||
$ENV{NAGIOS__SERVICEMSSQL_USER} ||
$ENV{NAGIOS__HOSTMSSQL_USER},
password => $commandline{password} ||
$ENV{NAGIOS__SERVICEMSSQL_PASS} ||
$ENV{NAGIOS__HOSTMSSQL_PASS},
port => $commandline{port} ||
$ENV{NAGIOS__SERVICEMSSQL_PORT} ||
$ENV{NAGIOS__HOSTMSSQL_PORT},
server => $commandline{server} ||
$ENV{NAGIOS__SERVICEMSSQL_SERVER} ||
$ENV{NAGIOS__HOSTMSSQL_SERVER},
warningrange => $commandline{warning},
criticalrange => $commandline{critical},
absolute => $commandline{absolute},
lookback => $commandline{lookback},
tablespace => $commandline{tablespace},
database => $commandline{database},
datafile => $commandline{datafile},
basis => $commandline{basis},
selectname => $commandline{name} || $commandline{tablespace} || $commandline{datafile},
regexp => $commandline{regexp},
name => $commandline{name},
name2 => $commandline{name2} || $commandline{name},
units => $commandline{units},
eyecandy => $commandline{eyecandy},
statefilesdir => $STATEFILESDIR,
);
my $server = undef;
$server = DBD::MSSQL::Server->new(%params);
$server->nagios(%params);
$server->calculate_result();
$nagios_message = $server->{nagios_message};
$nagios_level = $server->{nagios_level};
$perfdata = $server->{perfdata};
printf "%s - %s", $ERRORCODES{$nagios_level}, $nagios_message;
printf " | %s", $perfdata if $perfdata;
printf "\n";
exit $nagios_level;
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