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Summary:ASTERISK-07375: Asterisk will stop sending any packets for serveral seconds
Reporter:shawn (welles)Labels:
Date Opened:2006-07-21 03:48:22Date Closed:2006-07-27 08:36:13
Priority:MajorRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
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Environment:Attachments:
Description:asterisk version : 1.2.1 1.2.7.1 1.2.9.1
when serveral iax clients communicate with other through asterisk server, after several minutes, all iax clients will not hear any voice, this will lasts about 7~10 seconds and then become ok. this will always accur in every 10 minutes or so. according the packets we get from the server , it seems that
server has received frames but not send any frames. BTW, all iax client are under Symetric NAT.
Comments:By: Serge Vecher (serge-v) 2006-07-21 08:49:27

1. 'block' is for when Asterisk deadlocks completely.
2. Anything reported on the console?
3. Is this an issue in 1.2.10?
By: shawn (welles) 2006-07-21 19:29:16

didn't test in 1.2.10.
when this occur ,consol will stop for several seconds reporting anything.(there are about 300 users register on * ,so it should have many register info ,but it seems to stop.)
By: Tilghman Lesher (tilghman) 2006-07-22 11:23:39

Are you running Asterisk with realtime priority (-p)?  Are you running anything else on this box?
By: shawn (welles) 2006-07-23 19:06:52

no, i start my box with 'asterisk -vvvgc' or 'safe_asterisk'.
i disable some modules .
the following is content of modules.conf
/*****************/
[modules]
autoload=yes
noload => pbx_gtkconsole.so
noload => pbx_kdeconsole.so

noload => pbx_wilcalu.so
noload => pbx_dundi.so

noload => app_intercom.so

noload => app_qcall.so
noload => app_zapras.so
noload => app_meetme.so

noload => chan_modem.so
noload => chan_modem_aopen.so
noload => chan_modem_bestdata.so
noload => chan_modem_i4l.so

noload => chan_skinny.so
noload => chan_mgcp.so
noload => chan_zap.so
load => res_musiconhold.so
noload => chan_alsa.so

[global]
/*****************/
By: Tilghman Lesher (tilghman) 2006-07-23 19:15:49

I suspect there is another process running on this box which is occasionally hogging the CPU.
By: shawn (welles) 2006-07-23 19:33:37

when this occurs, CPU loading is very light.
Running Asterisk with realtime priority (-p) is useful for this issue?
By: shawn (welles) 2006-07-23 22:01:13

following are all processes running in my box:

USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.0  4748  512 ?        S     2005   0:18 init [3]
root         2  0.0  0.0     0    0 ?        SN    2005   0:00 [ksoftirqd/0]
root         3  0.0  0.0     0    0 ?        S<    2005   0:00 [events/0]
root         4  0.0  0.0     0    0 ?        S<    2005   0:00 [khelper]
root         5  0.0  0.0     0    0 ?        S<    2005   0:00 [kacpid]
root        27  0.0  0.0     0    0 ?        S<    2005   0:00 [kblockd/0]
root        28  0.0  0.0     0    0 ?        S     2005   0:00 [khubd]
root        39  0.0  0.0     0    0 ?        S     2005   0:00 [pdflush]
root        42  0.0  0.0     0    0 ?        S<    2005   0:00 [aio/0]
root        41  0.0  0.0     0    0 ?        S     2005   0:05 [kswapd0]
root       115  0.0  0.0     0    0 ?        S     2005   0:00 [kseriod]
root       180  0.0  0.0     0    0 ?        S<    2005   0:00 [ata/0]
root       182  0.0  0.0     0    0 ?        S     2005   0:00 [scsi_eh_0]
root       183  0.0  0.0     0    0 ?        S     2005   0:00 [scsi_eh_1]
root       195  0.0  0.0     0    0 ?        S     2005   4:19 [kjournald]
root      1312  0.0  0.0     0    0 ?        S<    2005   0:00 [kauditd]
root      1348  0.0  0.0     0    0 ?        S<    2005   0:00 [kmirrord]
root      1349  0.0  0.0     0    0 ?        S<    2005   0:00 [kmir_mon]
root      1376  0.0  0.0     0    0 ?        S     2005   0:00 [kjournald]
root      2112  0.0  0.0  3624  616 ?        Ss    2005   1:24 syslogd -m 0
root      2116  0.0  0.0  2532  484 ?        Ss    2005   0:00 klogd -x
root      2226  0.0  0.0  2536  588 ?        Ss    2005   0:00 /usr/sbin/acpid
root      2504  0.0  0.0  8940  808 ?        Ss    2005   0:00 /usr/sbin/atd
root      2579  0.0  0.0  2516  452 tty3     Ss+   2005   0:00 /sbin/mingetty tty3
root      2580  0.0  0.0  2516  452 tty4     Ss+   2005   0:00 /sbin/mingetty tty4
root      8709  0.0  0.0     0    0 ?        S     2005   0:04 [pdflush]
root      6919  0.0  0.0  2516  404 tty1     Ss+   2005   0:00 /sbin/mingetty tty1
root     24136  0.0  0.0  2516  404 tty2     Ss+   2005   0:00 /sbin/mingetty tty2
root      8338  0.0  0.1 21960 2076 ?        Ss   Apr20   0:07 /usr/sbin/sshd
root     19964  0.0  0.0  3604  492 ?        S<s  Apr20   0:00 udevd
root       407  0.0  0.0 57104 1212 ?        Ss   Jun20   0:00 crond
root     20200  0.0  0.0 71288 1312 ?        S    Jul22   0:00 su root
root     20208  0.0  0.0 53976 1620 ?        S    Jul22   0:00 bash
root     12687  0.2  1.0 193368 21964 ?      Sl   Jul22  6:03 /usr/sbin/asterisk -vvvgc
root     12693  0.0  0.2  6856 4936 ?        S    Jul22   0:01 mpg123 -q -s --mono -r 8000 -b 2048 -f 8192 QuajiroPromo.mp3 fp
root     12694  0.0  0.1  4688 2736 ?        S    Jul22   0:00 mpg123 -q -s --mono -r 8000 -b 2048 -f 8192 QuajiroPromo.mp3 fp
welles    4841  0.0  0.1 37264 2728 ?        S    10:05   0:01 sshd: welles@pts/0
welles    4842  0.0  0.0 53968 1520 pts/0    Ss   10:05   0:00 -bash
root      4906  0.0  0.0 71288 1312 pts/0    S    10:05   0:00 su root
root      4945  0.0  0.0 53976 1620 pts/0    S    10:05   0:00 bash
root      5528  0.0  0.0  5444  784 pts/0    R+   10:56   0:00 ps aux

is there any process unexpected?
By: Serge Vecher (serge-v) 2006-07-24 09:57:42

welles: I suspect mpg123 is the culprit. All support for it has been removed in the upcoming 1.4 release (current trunk) because of known issues with mpg123. The best course of action for you, IMHO, is to convert your mp3 files into one or several 'native' formats in use on your system (u/alaw, gsm).
By: shawn (welles) 2006-07-27 05:33:54

thanks all. it is a database issue. my database loading is too heavy sometimes. so when asterisk receive IAX_COMMAND_REGREQ ,asterisk will do some database 'select' or 'update' operation,so aterisk blocks. anyway,thanks very much.