On 05/02/15 10:53, Sebastian Damm wrote:
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.
We see it in the certified version which is currently 11.6. We have
about 50% higher call volume on our servers than yourselves and it does
take about 3-4 months for the load to reach about 5. I don't know what
causes it but we take the servers out of our load balancing and restart
asterisk every few months and this returns the load to normal.
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