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damm at sipgate.de
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 Posted: Thu Feb 05, 2015 5:54 am Post subject: [asterisk-users] constantly increasing load in Asterisk 11.1 |
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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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mailinglist+asterisk a...
Guest
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| Posted: Thu Feb 05, 2015 6:52 am Post subject: [asterisk-users] constantly increasing load in Asterisk 11.1 |
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On 05/02/15 10:53, Sebastian Damm wrote:
| Quote: | 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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sgriepentrog at digium...
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| Posted: Thu Feb 05, 2015 10:57 am Post subject: [asterisk-users] constantly increasing load in Asterisk 11.1 |
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Can you tell me if the memory usage by Asterisk is also increasing with load over time?
On Thu, Feb 5, 2015 at 4:53 AM, Sebastian Damm <damm@sipgate.de (damm@sipgate.de)> wrote:
| Quote: | 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
--
_____________________________________________________________________
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
http://www.asterisk.org/hello
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
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--
 Scott Griepentrog
Digium, Inc · Software Developer
445 Jan Davis Drive NW · Huntsville, AL 35806 · US
direct/fax: +1 256 428 6239 · mobile: +1 256 580 6090
Check us out at: http://digium.com · http://asterisk.org |
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mailinglist+asterisk a...
Guest
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| Posted: Thu Feb 05, 2015 11:54 am Post subject: [asterisk-users] constantly increasing load in Asterisk 11.1 |
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On 05/02/15 15:56, Scott Griepentrog wrote:
| Quote: | Can you tell me if the memory usage by Asterisk is also increasing
with load over time?
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Just for reference in 11.6 we don't see any memory usage increase but we
do see system (as opposed to user) cpu increase from 27% to 84% as the
load increases from 1% to around 4%.
Would be interesting to see if the original posters experience is the
same but more accelerated on their system.
--
_____________________________________________________________________
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
http://www.asterisk.org/hello
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users |
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damm at sipgate.de
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| Posted: Fri Feb 06, 2015 4:03 am Post subject: [asterisk-users] constantly increasing load in Asterisk 11.1 |
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Hi,
On Thu, Feb 5, 2015 at 4:56 PM, Scott Griepentrog <sgriepentrog@digium.com (sgriepentrog@digium.com)> wrote:
| Quote: | | Can you tell me if the memory usage by Asterisk is also increasing with load over time? |
Yes, the memory usage does rise a bit.
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
11.14
root 26047 8.9 5.0 1302036 407640 ? Sl Jan28 1201:26 asterisk -vvvgf
11.6
root 36336 9.9 1.1 881684 90360 ? Sl Jan28 1328:19 asterisk -vvvgf
Interestingly, the CPU graphs show no visible increase.
If you need any more information, just let me know.
Gareth, the slow increase of load over months was there with 11.5 or 11.6 already, but I can live with a restart every couple month. Once every week is too much.
Here is another overview of the load of one machine: http://pbrd.co/1zeFwBy
You can see, the Asterisk was running from April to September without much change in load, then was restarted. In November, we updated to 11.14, and from that time, it looks a bit different (and Asterisk needed a lot more restarts).
Best Regards,
Sebastian |
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