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40 lines
927 B
Python
Executable File
40 lines
927 B
Python
Executable File
#!/usr/bin/env python
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import sys
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import psycopg2
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from datetime import timedelta
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# Up to 5 minutes delay is ok
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WARNING_THRESHOLD=timedelta(minutes=5)
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# More than 15 minutes something is definitely wrong
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CRITICAL_THRESHOLD=timedelta(minutes=15)
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if __name__ == "__main__":
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if len(sys.argv) != 2:
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print "Usage: nagios_check.py <dsn>"
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sys.exit(1)
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conn = psycopg2.connect(sys.argv[1])
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curs = conn.cursor()
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# Get the oldest entry that has not been completed, if any
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curs.execute("SELECT COALESCE(max(now()-added), '0') FROM varnishqueue.queue WHERE completed IS NULL")
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rows = curs.fetchall()
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conn.close()
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if len(rows) == 0:
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print "OK, queue is empty"
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sys.exit(0)
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age = rows[0][0]
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if age < WARNING_THRESHOLD:
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print "OK, queue age is %s" % age
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sys.exit(0)
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elif age < CRITICAL_THRESHOLD:
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print "WARNING, queue age is %s" % age
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sys.exit(1)
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else:
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print "CRITICAL, queue age is %s" % age
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sys.exit(2)
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