Kevin,

The trick is to set (in this order):
    memlog = 4
    memdump = 1

This will do no logging at runtime, but it will log the mem dump (at shutdown or at signal).

Could you try that ?

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 26.06.2014 18:09, Kevin Mathy wrote:
Hi Bogdan,

We already have compiled opensips as described, and set memlog=1 in the configuration file. But as we had a lot of debug messages about memory usage, we unset memlog=1 in the config, so we don't have any report now. Is there a way to get those messages in a different log file, instead of inside the "classical" opensips.log ? I've found an option like "memdump" that can be set in opensips.cfg, but what about it ?

And as cacti doesn't seems to be relevant to check opensips's mem usage, do you have any other solution to check it ?

Thanks for your help,

*
Bien cordialement,
Best Regards,

**Kevin MATHY* |**Ingénieur VoIP
*
*


2014-06-26 16:46 GMT+02:00 Bogdan-Andrei Iancu <[email protected] <mailto:[email protected]>>:

    Hi Kevin,

    For debugging potential mem leaks, please look into:
    http://www.opensips.org/Documentation/TroubleShooting-OutOfMem
    If you need help with that, let me know.

    Also, cacti is monitoring the system memory which is irrelevant
    for OpenSIPS  (as OpenSIPS is pre-allocating - from OS - all the
    needed memory at startup).

    Regards,

    Bogdan-Andrei Iancu
    OpenSIPS Founder and Developer
    http://www.opensips-solutions.com

    On 26.06.2014 15 <tel:26.06.2014%2015>:04, Kevin Mathy wrote:
    Hi List,

    I'm facing a memory usage issue with OpenSIPS 1.9.2 on a Debian 7
    server

        root@asbc2:/home/kemathy# uname -a
        Linux asbc2 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3+deb7u2
        x86_64 GNU/Linux

        root@asbc2:/home/kemathy# opensips -V

        version: opensips 1.9.2-notls (x86_64/linux)
        flags: STATS: On, USE_IPV6, USE_TCP, DISABLE_NAGLE,
        USE_MCAST, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_F_MALLOC,
        FAST_LOCK-ADAPTIVE_WAIT
        ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144,
        MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535
        poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
        svnrevision: unknown
        @(#) $Id$
        main.c compiled on 11:15:37 Jun 20 2014 with gcc 4.7


    The server handles something like 70000 to 90000 calls per day,
    with around 20 to 40 Calls Per Second


    As you can see on the following Cacti graphs, system's free
    memory decreases constantly to finally reach the lower value of
    160M :

    https://www.dropbox.com/s/np3fnc6ni4vuoet/ASBC2_Memory_Usage_Evolution.jpg


    The system can stay 2-3 days working in this state, but for
    example, yesterday evening (2014-06-25 18:50:00), opensips
    crashed, after showing those log messages :

        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11390]:
        ERROR:db_mysql:db_mysql_convert_rows: no private memory left
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11390]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 412
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11380]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 355
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11380]:
        ERROR:core:received_builder: out of pkg memory
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11364]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 355
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11364]:
        ERROR:core:add_lump_rpl: no free pkg memory !
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11362]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 355
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11362]:
        ERROR:core:db_allocate_rows: no memory left
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11362]:
        ERROR:db_mysql:db_mysql_convert_rows: no private memory left
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11362]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 412
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11356]:
        ERROR:core:build_res_buf_from_sip_req: out of pkg memory  ;
        needs 355
        Jun 25 18:51:18 asbc2 /usr/local/sbin/opensips[11356]:
        ERROR:core:add_lump_rpl: no free pkg memory !


    And after the service's restart, everything was OK :

        Jun 25 19:12:39 asbc2 /usr/local/sbin/opensips[29351]:
        INFO:core:main: using 64 Mb shared memory
        Jun 25 19:12:39 asbc2 /usr/local/sbin/opensips[29351]:
        INFO:core:main: using 4 Mb private memory per process



    For information, here are the memory values at this moment;
    opensips has handled 5000 calls since his bootup :

        root@asbc2:/home/kemathy# free -m
                     total       used       free   shared    buffers
            cached
        Mem:         16082      12887       3195        0        339
             11393
        -/+ buffers/cache:       1154      14928
        Swap:        32755          0      32755


    For now, OpenSIPS is launched with S_MEMORY = 64 and P_MEMORY = 4
    My first idea would be to increase the P_MEMORY value to 8 for
    example, as it seems to be a lack of PKG Memory, but in case it's
    a memory-freeing problem, it'll not solve our issue (I think).

    My questions are : How can we calculate the appropriate value for
    S_MEMORY and P_MEMORY ? And how can we solve our "out of pkg
    memory" problem ?

    If you need further informations, or anything else, feel free to
    ask me !

    Thanks a lot for your help,

    *
    Bien cordialement,
    Best Regards,

    **Kevin MATHY* |**Ingénieur VoIP
    *
    *



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