[Freeswitch-users] Thread failure with low CPU utilization?

[Ken Rice]

A)What platform are you running FreeSWITCH on? (eg: Debian 8 etc)

b)How are you starting FreeSWITCH? (eg: in the foreground or background with an init script)

 

 

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Vladislav Ivanov
Sent: Monday, December 14, 2015 9:47 AM
To: freeswitch-users at lists.freeswitch.org
Subject: [Freeswitch-users] Thread failure with low CPU utilization?

 

Hello,

I have 1.6.5 Freeswitch and I'm trying to test how much lines/cps it can handle on my test machine:

CPU: Intel(R) Xeon(R) CPU E5450  @ 3.00GHz x2 (8 cores, 3 GHz)
RAM: 32GB
SSD: 500 GB

I'm using call generator to check flood the freeswitch, but when FS gets 1k sessions it sends 
[CRIT] switch_core_session.c:1781 Thread Failure!
and the Star Wars quote... But the CPU load is less than 10%

Ulimit is as follows: 

core file size          (blocks, -c) 0

data seg size           (kbytes, -d) unlimited

scheduling priority             (-e) 0

file size               (blocks, -f) unlimited

pending signals                 (-i) 128330

max locked memory       (kbytes, -l) 64

max memory size         (kbytes, -m) unlimited

open files                      (-n) 32768

pipe size            (512 bytes, -p) 8

POSIX message queues     (bytes, -q) 819200

real-time priority              (-r) 0

stack size              (kbytes, -s) 2048

cpu time               (seconds, -t) unlimited

max user processes              (-u) 32768

virtual memory          (kbytes, -v) unlimited

file locks                      (-x) unlimited


Server is physical, not virtual, but I dont have the same issue with virtual freeswitch.

Here is the "status" before the session limit:

freeswitch at internal> status

UP 0 years, 0 days, 0 hours, 0 minutes, 56 seconds, 137 milliseconds, 603 microseconds

FreeSWITCH (Version 1.6.5 git 70b8c17 2015-11-20 20:57:50Z 64bit) is ready

994 session(s) since startup

994 session(s) - peak 994, last 5min 994

40 session(s) per Sec out of max 200, peak 41, last 5min 41

10000 session(s) max

min idle cpu 10.00/96.77

Current Stack Size/Max 2048K/2048K

 

freeswitch at internal> status

UP 0 years, 0 days, 0 hours, 0 minutes, 56 seconds, 370 milliseconds, 877 microseconds

FreeSWITCH (Version 1.6.5 git 70b8c17 2015-11-20 20:57:50Z 64bit) is ready

1003 session(s) since startup

1003 session(s) - peak 1003, last 5min 1003

40 session(s) per Sec out of max 200, peak 41, last 5min 41

993 session(s) max

min idle cpu 10.00/96.77

Current Stack Size/Max 2048K/2048K

 

freeswitch at internal> 2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1781 Thread Failure!

2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1737 LUKE: I'm hit, but not bad.

2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1738 LUKE'S VOICE: Artoo, see what you can do with it. Hang on back there....

Green laserfire moves past the beeping little robot as his head turns.  After a few beeps and a twist of his mechanical arm,

Artoo reduces the max sessions to 993 thus, saving the switch from certain doom.

Any help with that? Really strange error...

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