[OpenSER-Devel] Memory dump for OpenSER 1.3.1 which slowly leaks memory

[Julian Yap]

On Mon, May 5, 2008 at 10:25 PM, Henning Westerholt
<henning.westerholt at 1und1.de> wrote:
>
> On Saturday 03 May 2008, Julian Yap wrote:
>  > I'm currently running OpenSER 1.3.1.
>  >
>  > It seems to slowly leaks memory.
>  >
>  > I've recompiled it as per for debug support in the memory manager:
>  > http://www.openser.org/dokuwiki/doku.php/troubleshooting:memory
>  >
>  > Here is the memory manager dump of the memory status:
>  > http://julianyap.com/download/openser1.3.1_memory_dump20080502.txt
>  >
>  > Any suggestions would be very welcome.
>
>  Hi Julian,
>
>  can you give a little more details about your problem? Why do you think it
>  leaks memory? Do you get memory allocation errors in the logs?
>
>  Cheers,
>
>  Henning

Henning,

I don't get any memory allocation errors.

I've recently updated to OpenSER 1.3 branch SVN r4107 but the 'leak'
still remains.

On a 4GB box, free memory just seems to deplete.

I have a cron job which restarts OpenSER every night but it seems like
not all the memory is free'd up.  Eventually the box needs to be
rebooted.  In the past, running out of memory has led to oom-killer
killing OpenSER.

For example, I have this cron job:
*/5 * * * * root echo "`date` `free | grep 'buffers/cache'`" >>
/var/log/free_memory.log

Memory just depletes.  Here's where OpenSER was restarted around midnight:
Sun May  4 23:10:01 HST 2008 -/+ buffers/cache:    2014972    2095204
Sun May  4 23:15:01 HST 2008 -/+ buffers/cache:    2027184    2082992
Sun May  4 23:20:01 HST 2008 -/+ buffers/cache:    2027604    2082572
Sun May  4 23:25:01 HST 2008 -/+ buffers/cache:    2038064    2072112
Sun May  4 23:30:01 HST 2008 -/+ buffers/cache:    2037868    2072308
Sun May  4 23:35:01 HST 2008 -/+ buffers/cache:    2053184    2056992
Sun May  4 23:40:01 HST 2008 -/+ buffers/cache:    2055216    2054960
Sun May  4 23:45:01 HST 2008 -/+ buffers/cache:    2075612    2034564
Sun May  4 23:50:01 HST 2008 -/+ buffers/cache:    2103232    2006944
Sun May  4 23:55:01 HST 2008 -/+ buffers/cache:    2114384    1995792
Mon May  5 00:00:01 HST 2008 -/+ buffers/cache:    2117320    1992856
Mon May  5 00:05:01 HST 2008 -/+ buffers/cache:     860304    3249872
Mon May  5 00:10:01 HST 2008 -/+ buffers/cache:     861208    3248968
Mon May  5 00:15:01 HST 2008 -/+ buffers/cache:     868968    3241208

Here's where I just restarted OpenSER:
Mon May  5 23:30:01 HST 2008 -/+ buffers/cache:    2041740    2068436
Mon May  5 23:35:01 HST 2008 -/+ buffers/cache:    2049572    2060604
Mon May  5 23:40:01 HST 2008 -/+ buffers/cache:    2054856    2055320
Mon May  5 23:45:01 HST 2008 -/+ buffers/cache:    2065316    2044860
Mon May  5 23:50:01 HST 2008 -/+ buffers/cache:    2062248    2047928
Mon May  5 23:55:01 HST 2008 -/+ buffers/cache:    2076148    2034028
Tue May  6 00:00:01 HST 2008 -/+ buffers/cache:    2087256    2022920
Tue May  6 00:05:01 HST 2008 -/+ buffers/cache:    2091300    2018876
Tue May  6 00:10:01 HST 2008 -/+ buffers/cache:    2093244    2016932
Tue May  6 00:15:01 HST 2008 -/+ buffers/cache:    1382632    2727544

Thanks,
Julian