[asterisk-users] Defunct / zombie AGI after some execution time

[Andrew Joakimsen]

Does asterisk close the channel?

On 11/13/06, Mark <mark at pyme.net> wrote:
>
> Hello,
>
> We are running Asterisk-1.0.12 in a CentOS 4-4.2 system, kernel
> 2.6.9-42.0.3.ELsmp.
>
> We have some custom AGI, and when we launch Asterisk the system works
> fine.
>
> But **after some time**, each AGI execution generates a zombie <defunct>
> process.
>
> We believe that it's not a problem in the AGI code, because Asterisk+AGI
> is
> working fine in the first "n" minutes/hours. This is a pstree sample:
>
> init-+-asterisk---asterisk---48*[asterisk]
>
> But after some execution time, this is the pstree output:
>
> init-+-asterisk---asterisk-+-28*[asterisk]
>      |                     |-asterisk-+-21*[xxxxxxxxx.agi]
>      |                     |          `-40*[xxxxxxxxx.agi]
>      |                     |-5*[asterisk-+-yyyyyyyyy.agi]
>      |                     |             |-zzzzzzzzz.agi]
> (...)
>
> Each agi is a defunct process. It dies when the call (parent) finishes.
>
> When the first zombie appears, then ALL next AGI launched from Asterisk
> generates a zombie.
>
> We have tested some improvements to solve the problem, with no success:
>
> - Upgrade from RedHat 8 to Centos 3.x
> - Upgrade from Centos 3.x to Centos 4.x
> - LD_ASSUME_KERNEL=2.4.1
> - ulimit -n 65535
> - Upgrade from asterisk 1.0.7 to 1.0.12
>
> Currenly we can not easily migrate from asterisk-1.0.x to 1.2.x
>
> Any ideas?. Could be Debian a solution?
>
> Thank you.
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