I'm stumped. I have an ugly little script to alert me if today's backup
of a database is smaller than the one from yesterday (and the day
before). The script works properly, and I have a simple monit rule in
place to alert me if it fails. When monit checks, it reports a failure;
that is pushed up to my m/monit server, which also logs the failure.
From there, all alerts go to PagerDuty. But I never get alerts from
this check.
(Hopefully) all relevant output is below. Some strings have been
obfuscated. Note that I have the rule modified to falsely report a
failure, for testing.
root@db1-primary: /etc/monit/conf.d # cat /etc/debian_version
7.9
root@db1-primary: /etc/monit/conf.d # monit --version
This is Monit version 5.17
Built with ssl, without pam and with large files
Copyright (C) 2001-2016 Tildeslash Ltd. All Rights Reserved.
root@db1-primary: /etc/monit/conf.d # cat backups
check program backup_failure with path /usr/local/bin/check_backup with
timeout 15 seconds
not every "* 14 * * *"
#if status != 0 then alert
if status != 1 then alert
root@db1-primary: /etc/monit/conf.d # cat /usr/local/bin/check_backup
#!/bin/bash
BACKUP_DIR=/var/backups
cd ${BACKUP_DIR}
BUFILE=`date +%Y_%m_%d`_"group".sql.gz
YDAY_BUFILE=`date --date "1 days ago" +%Y_%m_%d`_"group".sql.gz
DAYBEFORE_YDAY_BUFILE=`date --date "2 days ago" +%Y_%m_%d`_"group".sql.gz
if [ -e "${BUFILE}" ];then
TDAYSIZE=`du ${BUFILE}|cut -f1`
YDAYSIZE=`du ${YDAY_BUFILE}|cut -f1`
DBDAYSIZE=`du ${DAYBEFORE_YDAY_BUFILE}|cut -f1`
if [ $YDAYSIZE -gt $DBDAYSIZE ];then
if [ $TDAYSIZE -gt $YDAYSIZE ];then
exit 0
fi
else
exit 1
fi
fi
root@db1-primary:/etc/monit/conf.d # tail -1 /var/log/daemon.log
Mar 11 15:25:04 localhost monit[10562]: 'backup_failure'
'/usr/local/bin/check_backup' failed with exit status (0) -- no output
root@db1-primary: ~ # monit status|tail -7
Program 'backup_failure'
status Status failed
monitoring status Monitored
last started Fri, 11 Mar 2016 15:42:36
last exit value 0
data collected Fri, 11 Mar 2016 15:42:36
What am I missing?
--
Paul Theodoropoulos
www.anastrophe.com
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