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Fix check_oplog #221

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27 changes: 19 additions & 8 deletions check_mongodb.py
Original file line number Diff line number Diff line change
Expand Up @@ -232,7 +232,7 @@ def main(argv):
elif action == "collections":
return check_collections(con, warning, critical, perf_data)
elif action == "oplog":
return check_oplog(con, warning, critical, perf_data)
return check_oplog(con, warning, critical, perf_data, mongo_version)
elif action == "journal_commits_in_wl":
return check_journal_commits_in_wl(con, warning, critical, perf_data)
elif action == "database_size":
Expand Down Expand Up @@ -303,9 +303,9 @@ def mongo_connect(host=None, port=None, ssl=False, user=None, passwd=None, repli
con = pymongo.MongoClient(host, port, read_preference=pymongo.ReadPreference.SECONDARY, replicaSet=replica, **con_args)
else:
if replica is None:
con = pymongo.MongoClient(host, port, slave_okay=True)
con = pymongo.Connection(host, port, slave_okay=True)
else:
con = pymongo.MongoClient(host, port, slave_okay=True)
con = pymongo.Connection(host, port, slave_okay=True)
#con = pymongo.Connection(host, port, slave_okay=True, replicaSet=replica, network_timeout=10)

try:
Expand Down Expand Up @@ -1127,7 +1127,7 @@ def check_queries_per_second(con, query_type, warning, critical, perf_data, mong
return exit_with_general_critical(e)


def check_oplog(con, warning, critical, perf_data):
def check_oplog(con, warning, critical, perf_data, mongo_version):
""" Checking the oplog time - the time of the log currntly saved in the oplog collection
defaults:
critical 4 hours
Expand All @@ -1138,12 +1138,14 @@ def check_oplog(con, warning, critical, perf_data):
try:
db = con.local
ol = db.system.namespaces.find_one({"name": "local.oplog.rs"})
if (db.system.namespaces.find_one({"name": "local.oplog.rs"}) != None):
if (ol is not None):
oplog = "oplog.rs"
else:
ol = db.system.namespaces.find_one({"name": "local.oplog.$main"})
if (db.system.namespaces.find_one({"name": "local.oplog.$main"}) != None):
if (ol is not None):
oplog = "oplog.$main"
elif mongo_version == 3:
oplog = "oplog.rs"
else:
message = "neither master/slave nor replica set replication detected"
return check_levels(None, warning, critical, message)
Expand All @@ -1155,11 +1157,20 @@ def check_oplog(con, warning, critical, perf_data):
data = con.admin.command(son.SON([('collstats', oplog)]))

ol_size = data['size']
ol_storage_size = data['storageSize']
from pprint import pprint
pprint(data)
if 'maxSize' in data:
ol_storage_size = data['maxSize']
elif 'capped' in data and 'storageSize' in data:
print "Merde"
ol_storage_size = ol['options']['size']
ol_used_storage = int(float(ol_size) / ol_storage_size * 100 + 1)
ol = con.local[oplog]
firstc = ol.find().sort("$natural", pymongo.ASCENDING).limit(1)[0]['ts']
lastc = ol.find().sort("$natural", pymongo.DESCENDING).limit(1)[0]['ts']
print "ol_storage_size: {}".format(ol_storage_size / (1024 * 1024))
print "firstc: {}".format(firstc.as_datetime())
print "lastc: {}".format(lastc.as_datetime())
time_in_oplog = (lastc.as_datetime() - firstc.as_datetime())
message = "Oplog saves " + str(time_in_oplog) + " %d%% used" % ol_used_storage
try: # work starting from python2.7
Expand All @@ -1168,7 +1179,7 @@ def check_oplog(con, warning, critical, perf_data):
hours_in_oplog = float(time_in_oplog.seconds + time_in_oplog.days * 24 * 3600) / 60 / 60
approx_level = hours_in_oplog * 100 / ol_used_storage
message += performance_data(perf_data, [("%.2f" % hours_in_oplog, 'oplog_time', warning, critical), ("%.2f " % approx_level, 'oplog_time_100_percent_used')])
return check_levels(-approx_level, -warning, -critical, message)
return check_levels(-hours_in_oplog, -warning, -critical, message)

except Exception, e:
return exit_with_general_critical(e)
Expand Down