Zombie processes

[Raz]

look for open descriptors with lsof.

2010/1/3 Shachar Shemesh <shachar at shemesh.biz>:
> sammy ominsky wrote:
>
> Hi all,
>
> I have one server that is constantly getting overrun by zombies!  Nagios
> alerts me that
>
> ** NAGIOS ALERT ** PROBLEM with Zombie Processes on Hardware ***********
> (***.***.***.***).  Service is CRITICAL as of Sun Jan 3 15:17:10 UTC 2010.
> The additional information available is: PROCS CRITICAL: 23 processes with
> STATE = Z
>
> ps shows me it's mostly one process this time, other times it's others
>
> 19279 ?        Z      0:00 [playrecording.p] <defunct>
>
>
> Use pstree and check who the zombies parent is. If it is the same process
> for almost all of them, this is likely a software bug in playrecording.p (or
> whatever the parent is). If it is process ID 1, then you have some other
> problem (probably in the kernel).
>
> Shachar
>
> --
> Shachar Shemesh
> Lingnu Open Source Consulting Ltd.
> http://www.lingnu.com
>
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