[SR-Users] Memory leak when using db_unixodbc, help tracking it down (try 2)
Daniel-Constantin Mierla
miconda at gmail.com
Mon Mar 24 10:17:15 CET 2014
Hello,
I found some cases when variables were not freed, but I cannot test as I
am not using unixodbc.
Can you cherry pick the patch:
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=edc78dfb148c22f0d256485193bbdb0185b76d2f
and see if not all goes ok? If not other issues, then I will backport.
Cheers,
Daniel
On 21/03/14 17:37, Alex Villacís Lasso wrote:
> I have a CentOS 6 installation with the following packages installed
> from the RPM build service from Kamailio:
>
> kamailio-unixodbc-4.1.2-1.1.x86_64
> kamailio-4.1.2-1.1.x86_64
> kamailio-presence-4.1.2-1.1.x86_64
> kamailio-utils-4.1.2-1.1.x86_64
>
> I am also using db_unixodbc for all database accesses (with MySQL
> backend). The problem is that after a few hours, a single Kamailio
> process (never more than one) starts complaining that it has run out
> of memory:
>
> 9(11479) ERROR: uac [uac_reg.c:638]: uac_reg_tm_callback(): got sip
> response 408 while registering [admin_pbx.elastix.com]
> 9(11479) ERROR: db_unixodbc [dbase.c:335]:
> db_unixodbc_fetch_result(): no memory left
> 9(11479) ERROR: <core> [db_query.c:502]: db_fetch_next(): unable to
> fetch next rows
> 9(11479) ERROR: db_unixodbc [dbase.c:224]: db_unixodbc_free_result():
> invalid parameter value
> 9(11479) ERROR: db_unixodbc [dbase.c:327]:
> db_unixodbc_fetch_result(): no private memory left
> 9(11479) ERROR: <core> [db_query.c:434]: db_fetch_query_internal():
> unable to fetch the db result
> 9(11479) ERROR: presence [publish.c:108]: msg_presentity_clean():
> failed to query database for expired messages
> 9(11479) ERROR: db_unixodbc [dbase.c:327]:
> db_unixodbc_fetch_result(): no private memory left
> 9(11479) ERROR: <core> [db_query.c:434]: db_fetch_query_internal():
> unable to fetch the db result
> 9(11479) ERROR: presence [publish.c:108]: msg_presentity_clean():
> failed to query database for expired messages
> 9(11479) ERROR: db_unixodbc [dbase.c:327]:
> db_unixodbc_fetch_result(): no private memory left
> 9(11479) ERROR: <core> [db_query.c:434]: db_fetch_query_internal():
> unable to fetch the db result
>
> I have attached the stderr output when I kill the offending process.
> From what I can see, the memory leak somehow involves database
> allocations that fail to be freed, consuming more than 3 MB out of 4
> MB allocated:
>
> 9(11479) NOTICE: <core> [main.c:857]: sig_usr(): Memory still-in-use
> summary (pkg):
> 9(11479) NOTICE: qm_sums: summarizing all alloc'ed. fragments:
> 9(11479) NOTICE: qm_sums: count= 1 size= 10240 bytes from
> mi_fifo: mi_writer.c: mi_writer_init(57)
> 9(11479) NOTICE: qm_sums: count= 378 size= 3029384 bytes from
> db_unixodbc: dbase.c: db_unixodbc_fetch_result(333)
> 9(11479) NOTICE: qm_sums: count= 1 size= 4096 bytes from
> db_unixodbc: dbase.c: db_unixodbc_fetch_result(325)
> 9(11479) NOTICE: qm_sums: count= 1 size= 16 bytes from
> <core>: sr_module.c: init_modules(1002)
> 9(11479) NOTICE: qm_sums: count= 1 size= 56 bytes from
> textops: textops.c: hname_fixup(1634)
> 9(11479) NOTICE: qm_sums: count= 1 size= 32 bytes from
> rr: rr_cb.c: register_rrcb(63)
>
> I have the setup to compile my own RPMS, and I intend to track down
> the memory leak on my own. However, I would like your help in focusing
> my search, on whether this is a known issue, or where in db_unixodbc
> should I look.
>
>
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--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference - April 2-4, 2014, Berlin, Germany
http://www.kamailioworld.com
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