Hello!
We are noticed that after asterisk upgraded from 18 to 20 version, memory leak was beginning. For about 1 month RAM decrease to less than 10% from 80-85%. Command in MALLOC_DEBUG “memory show summary” shows that some files allocate more and more memory and don’t release it, especially “bucket.c”:
You would need to provide more information about your usage of Asterisk.
How did you measure this? You must use the “available” figure from “free”, not the the “Free” one.
Hello!
You are right, I mean available memory.
I see it in zabbix. Beneath is chart, where we see, that on the 18th version of the asterisk the available memory varies between 85-60%, but after upgrade to 20.9.3 available memory is constantly decreasing:
Hello!
asterisk gets incoming calls, records they through MixMonitor application, get (CURL) some variables from application and passes call control in Stasis, also sends results of calls to server after calls hangup. The number of simultaneous calls reaches 80 in maximum, an average - 40.
Server - VMware virtual machine:
RAM - 8GB;
CPU - 6 cores 2992.968 MHz;
OS - RHEL 8.9
Before upgrading to 20.9.3 version of asterisk was not any problems, available memory changes in the range of 85-60%, unused memory was being released.
The Asterisk gets incoming calls, records they through MixMonitor application, get (CURL) some variables from application and passes call control in Stasis, also sends results of calls to server after calls hangup. The number of simultaneous calls reaches 80 in maximum, an average - 40.
Server - VMware virtual machine:
RAM - 8GB;
CPU - 6 cores 2992.968 MHz;
OS - RHEL 8.9
Before upgrading to 20.9.3 version of asterisk was not any problems, available memory changes in the range of 85-60%, unused memory was being released.
Hi!
You right, David. I meant available memory of course.
I see it in Zabbix. There is a chart in the screenshot, where we can see the difference between values of available memory in percentage for 18 version and 20
That explanation is incomplete. What channel driver is being used for calls? Are you using realtime?
Essentially, you need to determine what about your specific usage pattern is the source.
Channel driver is PJSIP. SIP proxy initiates calls. Asterisk passes call control to application server by Stasis dialplan application through ARI.
For anyone looking at this thread, an issue was opened: [bug]: Memory leak started after upgrading Asterisk from version 18 to 20 · Issue #1108 · asterisk/asterisk · GitHub
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