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Monitoring the /proc/user_beancounters to see if any VEs containers are hitting limits is an important part ofmanaging an OpenVZ installation. VEs Containers that are hitting key limits can have applications malfunction in strangeways that can only be diagnosed by realising that it is a UBC configuration issue.
A small script, '''failcnt.py''', can run via cron on the host node and watch all VEs for failures. It emails the host node admin a failure summary.
To get the latest version using bzr, run:
bzr branch lp:tkmisc
cd tkmisc/vz_failcnt
It can also be downloaded from:
https://launchpad.net/tkmisc/
or
http://bazaar.launchpad.net/~toykeeper/tkmisc/trunk/files
Then, to install it, create '''/etc/cron.hourly/vz-failcnt''', containing:
#!/bin/sh
/path/to/tkmisc/vz_failcnt/failcnt.py
This script, when run periodically (using cron) will detect changes in the failcnt field of /proc/user_beancounters
[[Category: Troubleshooting]]
