mirror of
https://github.com/ranl/monitor-utils.git
synced 2024-12-22 13:33:43 +01:00
solr check nagios plugin
This commit is contained in:
ranl
parent
b252427208
commit
6efc559615
338
nagios/check_solr.py
Executable file
338
nagios/check_solr.py
Executable file
@ -0,0 +1,338 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
'''
|
||||
Nagios compatible plugin to check Solr via Solr HTTP API
|
||||
|
||||
require Python >= 2.6
|
||||
'''
|
||||
|
||||
from optparse import OptionParser
|
||||
import xml.etree.ElementTree as ET
|
||||
import urllib2
|
||||
import tempfile
|
||||
import os.path
|
||||
|
||||
EXIT_CODE = {
|
||||
'OK': 0,
|
||||
'WARN': 1,
|
||||
'CRIT': 2,
|
||||
'UNKNOWN': 3,
|
||||
}
|
||||
|
||||
def prepareOpts():
|
||||
'''
|
||||
Parse option from the shell
|
||||
'''
|
||||
|
||||
cmds = {
|
||||
'ping' : 'create a ping to solr API',
|
||||
'dataimportDocumentsProcessed': 'check that the dataimport handler is not processing the same document for too long',
|
||||
'indexBehindMaster': 'check the difference between the slave index and the master'
|
||||
}
|
||||
epliog = 'Type of Checks:'
|
||||
for k in cmds:
|
||||
epliog += '\n {0}:\t{1}'.format(k, cmds[k])
|
||||
|
||||
def help():
|
||||
parser.print_help()
|
||||
print ''
|
||||
print epliog
|
||||
|
||||
def err( string ):
|
||||
print 'Error: {0}'.format( string )
|
||||
help()
|
||||
exit(1)
|
||||
|
||||
parser = OptionParser()
|
||||
parser.add_option('-u', '--url', dest='url', type='string', help='solr url', default=None)
|
||||
parser.add_option('-U', '--user', dest='user', type='string', help='username', default=None)
|
||||
parser.add_option('-P', '--passwd', dest='passwd', type='string', help='password', default=None)
|
||||
parser.add_option('-t', '--timeout', dest='timeout', type='float', help='how many seconds to wait for each http request', default=5)
|
||||
parser.add_option('-T', '--type', dest='type', type='choice', choices=cmds.keys(), help='what to check: {0}'.format(', '.join(cmds.keys())) )
|
||||
parser.add_option('-C', '--core', dest='core', type='string', help='core id', default=None)
|
||||
parser.add_option('-d', '--handler', dest='handler', type='string', help='dataimport handler name', default=None)
|
||||
parser.add_option('-c', '--critical', dest='critical', type='int', help='warning threshold (implies -T indexBehindMaster)', default=None)
|
||||
parser.add_option('-w', '--warning', dest='warning', type='int', help='critical threshold (implies -T indexBehindMaster)', default=None)
|
||||
parser.add_option('-m', '--tmpdir', dest='tmpdir', type='string', help='absolute path to a writeable directory on the server', default=tempfile.gettempdir())
|
||||
(opts, args) = parser.parse_args()
|
||||
|
||||
# Input Validation
|
||||
if not opts:
|
||||
help()
|
||||
exit(1)
|
||||
if not opts.type:
|
||||
err('missing -T')
|
||||
if (opts.user and not opts.passwd) or (not opts.user and opts.passwd):
|
||||
err('missing username or password')
|
||||
if not opts.url:
|
||||
err('missing solr http url')
|
||||
if opts.type == 'dataimportDocumentsProcessed':
|
||||
if opts.core is None:
|
||||
err('missing core id !')
|
||||
if opts.handler is None:
|
||||
err('missing handler name !')
|
||||
if opts.type == 'indexBehindMaster':
|
||||
if opts.critical is None or opts.warning is None:
|
||||
err('missing -w or -c')
|
||||
if opts.warning > opts.critical:
|
||||
err('-w can not be greater than -c')
|
||||
|
||||
return opts
|
||||
|
||||
|
||||
class SolrMonitor():
|
||||
'''
|
||||
Monitor Apache Solr via http
|
||||
'''
|
||||
|
||||
def __init__(self, url, timeout=5, username=None, passwd=None):
|
||||
self.url = url
|
||||
self.timeout = timeout
|
||||
self.username = username
|
||||
self.passwd = passwd
|
||||
self.memfile = 'check_solr_data'
|
||||
|
||||
if self.url.endswith('/'):
|
||||
self.url = self.url[:-1]
|
||||
|
||||
self._get_auth()
|
||||
|
||||
def _get_auth(self):
|
||||
'''
|
||||
Build an Auth opener for HTTP connection
|
||||
'''
|
||||
if not self.username or not self.passwd:
|
||||
return
|
||||
basic = urllib2.HTTPBasicAuthHandler()
|
||||
basic.add_password(
|
||||
realm='Solr',
|
||||
uri=self.url,
|
||||
user=self.username,
|
||||
passwd=self.passwd
|
||||
)
|
||||
digest = urllib2.HTTPDigestAuthHandler()
|
||||
digest.add_password(
|
||||
realm='Solr',
|
||||
uri=self.url,
|
||||
user=self.username,
|
||||
passwd=self.passwd
|
||||
)
|
||||
|
||||
urllib2.install_opener(
|
||||
urllib2.build_opener(basic, digest))
|
||||
|
||||
def _getXmlData(self, url):
|
||||
'''
|
||||
create an http request to url and return the data
|
||||
in case of a problem return None
|
||||
'''
|
||||
|
||||
try:
|
||||
return ET.fromstring(
|
||||
urllib2.urlopen(
|
||||
url,
|
||||
timeout=self.timeout
|
||||
).read()
|
||||
)
|
||||
except urllib2.URLError:
|
||||
return None
|
||||
|
||||
def _eval_ping(self, res, opts):
|
||||
'''
|
||||
Evaluate the ping test
|
||||
'''
|
||||
|
||||
if res:
|
||||
return {
|
||||
'exit': EXIT_CODE['OK'],
|
||||
'msg': 'OK: Solr Ping is up'
|
||||
}
|
||||
else:
|
||||
return {
|
||||
'exit': EXIT_CODE['CRIT'],
|
||||
'msg': 'OK: Solr Ping is down'
|
||||
}
|
||||
|
||||
def _eval_dataimportDocumentsProcessed(self, res, opts):
|
||||
'''
|
||||
Evaluate the dataimportDocumentsProcessed test
|
||||
'''
|
||||
firstTimeResponse = {
|
||||
'exit': EXIT_CODE['UNKNOWN'],
|
||||
'msg': 'UNKNOWN: looks like the first time we are using this check, creating local cache'
|
||||
}
|
||||
memFile = os.path.join(opts.tmpdir, self.memfile)
|
||||
if not os.path.isfile(memFile):
|
||||
with open( memFile, 'w' ) as f:
|
||||
f.write(str(res))
|
||||
return firstTimeResponse
|
||||
|
||||
if res < 0:
|
||||
return {
|
||||
'exit': EXIT_CODE['UNKNOWN'],
|
||||
'msg': 'UNKNOWN: could not query solr for index status'
|
||||
}
|
||||
|
||||
fh = open( memFile, 'r+' )
|
||||
prev = fh.read()
|
||||
fh.seek(0)
|
||||
fh.write(str(res))
|
||||
fh.close()
|
||||
if not prev:
|
||||
return firstTimeResponse
|
||||
prev = int(prev)
|
||||
|
||||
if prev != res or res == 0:
|
||||
return {
|
||||
'exit': EXIT_CODE['OK'],
|
||||
'msg': 'OK: Solr is indexing {0} docs now and before {1}'.format(
|
||||
res, prev
|
||||
)
|
||||
}
|
||||
else:
|
||||
return {
|
||||
'exit': EXIT_CODE['CRIT'],
|
||||
'msg': 'CRIT: Solr is still indexing {0} docs since the last check'.format(res)
|
||||
}
|
||||
|
||||
def _eval_indexBehindMaster(self, res, opts):
|
||||
'''
|
||||
Evaluate the indexBehindMaster test
|
||||
'''
|
||||
|
||||
msg=''
|
||||
if res < opts.warning:
|
||||
msg='OK'
|
||||
elif res >= opts.warning and res <= opts.critical:
|
||||
msg='WARN'
|
||||
else:
|
||||
msg='CRIT'
|
||||
return {
|
||||
'exit': EXIT_CODE[msg],
|
||||
'msg': '{0}: Solr Slave is {1} behind then master'.format(
|
||||
msg, res
|
||||
)
|
||||
}
|
||||
|
||||
def ping(self):
|
||||
'''
|
||||
Check if solr ping returns True
|
||||
'''
|
||||
|
||||
ret = False
|
||||
root = self._getXmlData(self.url + '/admin/ping')
|
||||
if root is None:
|
||||
return False
|
||||
|
||||
if root.find('str').text == 'OK':
|
||||
ret = True
|
||||
|
||||
return ret
|
||||
|
||||
def dataimportDocumentsProcessed(self, core, handler):
|
||||
'''
|
||||
Return the number of processed documents
|
||||
from the dataimport handler
|
||||
|
||||
url: http://solr:port/solr/core0/dataimportName?command=status
|
||||
'''
|
||||
|
||||
url = '{0}/{1}/{2}?command=status'.format(
|
||||
self.url,
|
||||
core,
|
||||
handler
|
||||
)
|
||||
root = self._getXmlData(url)
|
||||
if root is None:
|
||||
return -1
|
||||
|
||||
for lst in root.findall('lst'):
|
||||
if lst.attrib['name'] == 'statusMessages':
|
||||
for str in lst.findall('str'):
|
||||
if str.attrib['name'] == 'Total Documents Processed':
|
||||
return int(str.text)
|
||||
|
||||
return -1
|
||||
|
||||
# Python 2.7
|
||||
# return int(
|
||||
# root.findall(
|
||||
# "lst[@name='statusMessages']/str[@name='Total Documents Processed']"
|
||||
# )[0].text
|
||||
# )
|
||||
|
||||
def indexBehindMaster(self):
|
||||
'''
|
||||
Returns the difference bewteen the slave index
|
||||
and the master replicable index
|
||||
'''
|
||||
|
||||
slave = None
|
||||
master = None
|
||||
root = self._getXmlData(
|
||||
self.url + '/replication?command=details'
|
||||
)
|
||||
if root is None:
|
||||
return -1
|
||||
|
||||
for lst in root.findall('lst'):
|
||||
if lst.attrib['name'] == 'details':
|
||||
|
||||
# Slave
|
||||
for lng in lst.findall('long'):
|
||||
if lng.attrib['name'] == 'indexVersion':
|
||||
slave = long(lng.text)
|
||||
break
|
||||
|
||||
# Master
|
||||
for lstm in lst.findall('lst'):
|
||||
if lstm.attrib['name'] == 'slave':
|
||||
for lstms in lstm.findall('lst'):
|
||||
if lstms.attrib['name'] == 'masterDetails':
|
||||
for lstMaster in lstms.findall('lst'):
|
||||
if lstMaster.attrib['name'] == 'master':
|
||||
for rep in lstMaster.findall('long'):
|
||||
if rep.attrib['name'] == 'replicableVersion':
|
||||
master = long(rep.text)
|
||||
break
|
||||
|
||||
if master and slave:
|
||||
break
|
||||
|
||||
# Python 2.7
|
||||
# slave = root.findall(
|
||||
# "./*[@name='details']/arr[@name='commits']/lst/long[@name='indexVersion']"
|
||||
# )[0].text
|
||||
# master = root.findall(
|
||||
# "./lst[@name='details']/lst[@name='slave']/lst[@name='masterDetails']/lst[@name='master']/long[@name='replicableVersion']"
|
||||
# )[0].text
|
||||
return long(master - slave)
|
||||
|
||||
@staticmethod
|
||||
def main():
|
||||
'''
|
||||
Main function
|
||||
'''
|
||||
|
||||
opts = prepareOpts()
|
||||
solr = SolrMonitor( opts.url, opts.timeout, opts.user, opts.passwd )
|
||||
|
||||
method = getattr(solr, opts.type)
|
||||
k = {}
|
||||
if opts.core:
|
||||
k.update({'core': opts.core})
|
||||
if opts.handler:
|
||||
k.update({'handler': opts.handler})
|
||||
res = method(**k)
|
||||
|
||||
eval_method = getattr(
|
||||
solr, '_eval_{0}'.format(opts.type)
|
||||
)
|
||||
ret = eval_method(res, opts)
|
||||
print ret['msg']
|
||||
exit(ret['exit'])
|
||||
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
SolrMonitor.main()
|
||||
Loading…
Reference in New Issue
Block a user