Hi Aaron,
Aaron Daubman wrote:
Hi Javier, et al;
Pardon if I don't provide enough useful information up front - let me know what would be useful to know and I'll include it.
I'm in the process of setting up a brand new JFFNMS 0.8.1 install on a Sunfire V20z dual opteron with 2G ram running FreeBSD 5.3-Stable SMP for amd64 with apache2, mysql 4.1.10 and php5.
Wow, nice boxes... :)
So far I'm monitoring 6 switches and a VPN concentrator with a total of 1191 interfaces.
Everything had been running fine for 1.5 weeks with just 3 switches (and maybe 600 interfaces). Early this week I added the rest of the hosts and after a while, at random, I started getting errors like this:
Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 128 bytes) in /opt/jffnms/lib/api.events.inc.php on line 288
Going on a previous post, I increased the memory limit in php.ini from 8M to 32M and that seemed to fix the problem.
Thats ok.
Today, a day after upping the php memory limit, I tried to log in to
the box and could not. The console cli reacted very sluggishly. About 15 minutes later it seems the box keeled over and reloaded. Almost all available memory was used (it appeared by php) and the
processor load would spike. I'm attaching a text file of the output
of `ps -auxw` from 15 minutes before the box reloaded.
After the reload, the box seems to be functioning fine - I'm just waiting now for it to happen again.
What should I be looking at to diagnose root-cause? I wouldn't think 1000 interfaces would be too much for a box of this caliber to handle...
It should handle it fine, but you are using the old poller, and your pollers are stacking up, it seems some of your hosts take more than 5 minutes to be polled, and a new poller for that host starts.
This is a common problem on big installations, thats why we did the new poller (poller2), using it, you will not see any more stacking, and the load will reamain stable.
Check the included crontab in docs/examples/unix for usage.
Thanks!
~Aaron
Hope that helps.
Javier
-- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Javier Szyszlican, Project Leader, JFFNMS [EMAIL PROTECTED]
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