[SR-Users] potential memory leak

[Dragos Oancea]

Hi Daniel,

No, we don't see that kind of errors in the logs.

We will try to provide some logs as soon as we have something relevant.
Thank you!

Regards,
Dragos


________________________________
 From: Daniel-Constantin Mierla <miconda at gmail.com>
To: Dragos Oancea <droancea at yahoo.com>; Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org> 
Sent: Monday, September 30, 2013 4:37 PM
Subject: Re: [SR-Users] potential memory leak
 


Hello,

do you get errors like "pv_sprintf: ERROR: wrong format ..." from
    perl module? It looks like a leak in this error case.

If not, can you compile with MEMDBG=1, then set memlog in config
    less that debug and run/test it for a while?

Restart it and look at the logs at shut down to spot any memory leak.
    You can send it to me if you want me to analyze them.

I recommend you set children=2 or 4 to make the leak faster visible.

Also, you can decide what types of stats you want via:

http://www.kamailio.org/wiki/cookbooks/4.0.x/core#mem_summary

You can use value 12 to make the output more compact.

Cheers,
Daniel


On 9/30/13 4:25 PM, Dragos Oancea wrote:

Hi Daniel,
>
>
>
>
>We are running Kamailio 4.0.3 . So it appears that yes, we have this commit.
>
>
>Regards,
>Dragos
>
>
>
>________________________________
> From: Daniel-Constantin Mierla <miconda at gmail.com>
>To: Dragos Oancea <droancea at yahoo.com>; Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org> 
>Sent: Monday, September 30, 2013 4:06 PM
>Subject: Re: [SR-Users] potential memory leak
> 
>
>
>Hello,
>
>what version are you running? Is it after the commit:
>
>http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=341f810dca0cc0596e22f2ac1bca86de0b8d142d ?
>
>Cheers,
>Daniel
>
>
>On 9/30/13 3:59 PM, Dragos Oancea wrote:
>
>Hello
>>
>>
>>
>>
>>We've put Kamailio on a machine with a SIP-Proxy role, we replaced another SIP proxy implementation.
>>We started with the default 4Mb of PKG Memory and 1024 Mb of Shared Memory but we had messages like these in the logs:
>>
>>
>>2013-09-26 13:48:26,939  ERROR: app_perl [kamailioxs.xs:371]: pv_sprintf(): pv_sprintf: Memory exhausted!
>>2013-09-26 13:48:50,267  ERROR: app_perl [kamailioxs.xs:371]: pv_sprintf(): pv_sprintf: Memory exhausted!
>>2013-09-26 13:48:51,822  ERROR: <core> [data_lump.c:197]: insert_subst_lump_after(): ERROR: insert_new_lump_after: out of memory
>>2013-09-26 13:48:51,823  ERROR: <core> [parser/contact/contact.c:194]: parse_contacts(): parse_contacts(): No memory left
>>2013-09-26 13:48:51,823  ERROR: memcached [../../parser/../ut.h:736]: pkg_str_dup(): could not allocate private memory from available pool
>>2013-09-26 13:48:51,823  ERROR: <core> [data_lump.c:373]: anchor_lump(): ERROR: anchor_lump: out of memory
>>2013-09-26 13:48:51,823  ERROR: <core> [dset.c:525]: rewrite_uri(): No memory left to rewrite r-uri
>>2013-09-26 13:48:51,823  ERROR: <core> [action.c:810]: do_action(): ERROR: do_action: memory allocation  failure
>>2013-09-26 13:48:51,823  ERROR: <core> [msg_translator.c:2164]: build_res_buf_from_sip_req(): ERROR: build_res_buf_from_sip_req: out of memory  ; needs 357
>>2013-09-26 13:48:51,823  ERROR: <core> [msg_translator.c:2164]: build_res_buf_from_sip_req(): ERROR: build_res_buf_from_sip_req: out of memory  ; needs 376
>>
>>
>>
>>
>>Then we started kamailio like below, with 1024Mb of private memory (per process) :
>>
>>
>>/opt/kamailio/sbin/kamailio -f /opt/kamailio/etc/kamailio//kamailio.cfg -w /opt/kamailio/core_dir/corefiles -P /opt/kamailio/var/run//kamailio.pid -m 1024 -M 1024 -u kamailio -g kamailio
>>
>>
>>
>>Then after about 4 days we realized that we have a steady increase of used memory ( in the output of free command the '-/+ buffers/cache:' row  ), and we simply restarted the kamailio process.
>>
>>
>>The machine has 12 Gb of RAM , we run with children=32 .  1gb of memory per process x 32 child processes means that we are over the physical capacity of the machine.
>>The question is , are we in any danger of running out of memory on this box where we only run kamailio ? We don't want to reach the point where the kernel starts killing processes.
>>Shall we suspect some memory leak in the app_perl module ? (we do some http queries over SSL from a perl script)
>>
>>
>>
>>
>>Thank you.
>>
>>
>>Regards,
>>Dragos Oancea
>>
>>
>>
>>
>>_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users at lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users 
>
>-- 
Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Trainings - Berlin, Nov 25-28; Miami, Nov 18-20, 2013 - more details about Kamailio trainings at http://www.asipto.com - 
>
>

-- 
Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Trainings - Berlin, Nov 25-28; Miami, Nov 18-20, 2013 - more details about Kamailio trainings at http://www.asipto.com - 
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