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When I look at /proc/user_beancounters there is some failcnt on kmemsize and tcpsndbbuf. Is there anyway to know when they got incremented? Do we always need to track the count and display in graph or something?

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there are a few solutions for zabbix, monit, nagios;

http://binfalse.de/software/nagios/check_ubc-pl/
https://github.com/peletiah/openvz
http://wiki.openvz.org/Monitoring_/proc/user_beancounters_via_vzwatchd
http://www.admon.org/shell-script-to-monitor-openvz-container-running-status/

i believe you will find something for you :)

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thanks for the tips. so I guess there is no way to know when it hit limit in the past unless I had been monitoring it? –  mask8 Aug 1 '12 at 14:54
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