[asterisk-users] constantly increasing load in Asterisk 11.14

[Sebastian Damm]

Hi,

we have quite a few Asterisk machines running and try to keep them on a
current version of the Asterisk 11 branch. But since we upgraded to 11.14.0
a couple weeks ago, we have to restart the Asterisk process every week
because the load gets too high and our monitoring complains.

Those machines are doing only SIP-to-SIP call relay, the dialplan is quite
complex, transcoding is done only on a few percent of the calls processed.
During the daytime, there are at max around 200 SIP channels (100 calls)
running at the same time. After one week, one machine has processed about
170k calls.

I have uploaded a comparison of cacti load graphs for one week of a machine
running with 11.14.0 and one running with 11.6.0: http://pbrd.co/1v0SO3R

As you can see, after a restart, both machines have about the same load.
But after the really quiet weekend, the 11.14 Asterisk starts the new week
with a much higer load than the 11.6 Asterisk, where it stays constant.
We've had an 11.5.1 machine running for about half a year without the need
of restarting, but right now, this is not possible.

Has anyone seen this before? Or does anyone know a reason, what change
somewhere between 11.6 and 11.14 could cause this behaviour? It looks like
we have to go back to 11.6.

Best Regards,
Sebastian
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