[SR-Users] Memory leak or bad setting.

[Daniel-Constantin Mierla]

Hello,

it is recommended to upgrade to latest 4.2.x -- there were some fixes
since version 4.2.1. The same configuration file and database structure
works for all 4.2.x, therefore just deploy the newer 4.2.x like you did
with 4.2.1 and just restart.

After upgrade, if you still see decrease of pkg free memory, let us know
to investigate further.

Cheers,
Daniel

On 08/05/15 16:01, Kjeld Flarup wrote:
> Hello
>
> We experienced a failure on our kamailio (4.2.1+trusty), which required
> a restart.
> May  6 07:40:41 rtpproxy01 /usr/sbin/kamailio[5467]: ERROR: <core>
> [msg_translator.c:2270]: generate_res_buf_from_sip_res(): out of mem
>
> Afterwards we inspected all the settings to be using default, but at a
> much higher level than an other older kamailio which runs much more traffic.
>
> The big difference, is that this kamailio works with rtpengine. Does
> that require more memory?
>
> We also observed that the free memory is constantly falling on some
> instances. They all started with 16MB but after 1½ day some are on 11.6
> Is this normal behaviour that will find a natural level or is there
> something bad going on?
>
> We can also see that there are frags. Is that to be worried about, or is
> this natural?
>
> kamcmd pkg.stats | egrep -e 'free|frag'
> 	free: 16362760
> 	total_frags: 17
> 	free: 15835176
> 	total_frags: 232
> 	free: 15845760
> 	total_frags: 205
> 	free: 15829288
> 	total_frags: 188
> 	free: 15847456
> 	total_frags: 181
> 	free: 15853024
> 	total_frags: 183
> 	free: 15873232
> 	total_frags: 225
> 	free: 15858584
> 	total_frags: 231
> 	free: 15834592
> 	total_frags: 205
> 	free: 15852520
> 	total_frags: 132
> 	free: 15869048
> 	total_frags: 120
> 	free: 15824872
> 	total_frags: 100
> 	free: 15828448
> 	total_frags: 113
> 	free: 15858216
> 	total_frags: 109
> 	free: 15861992
> 	total_frags: 82
> 	free: 15871712
> 	total_frags: 110
> 	free: 15813824
> 	total_frags: 109
> 	free: 11583736
> 	total_frags: 121
> 	free: 11588896
> 	total_frags: 106
> 	free: 11580448
> 	total_frags: 118
> 	free: 11586312
> 	total_frags: 134
> 	free: 11592840
> 	total_frags: 159
> 	free: 11632536
> 	total_frags: 120
> 	free: 11582368
> 	total_frags: 127
> 	free: 11660104
> 	total_frags: 97
> 	free: 16352192
> 	total_frags: 14
> 	free: 16351088
> 	total_frags: 13
> 	free: 16341248
> 	total_frags: 46
> 	free: 16351184
> 	total_frags: 19
>
> We use 4.2.1+trusty with these modules, is it possible that a newer
> version has fixed some memory leak?
>
> loadmodule "db_mysql.so"
> loadmodule "mi_fifo.so"
> loadmodule "kex.so"
> loadmodule "tm.so"
> loadmodule "tmx.so"
> loadmodule "sl.so"
> loadmodule "rr.so"
> loadmodule "pv.so"
> loadmodule "maxfwd.so"
> loadmodule "textops.so"
> loadmodule "siputils.so"
> loadmodule "xlog.so"
> loadmodule "sanity.so"
> loadmodule "ctl.so"
> loadmodule "mi_rpc.so"
> loadmodule "acc.so"
> loadmodule "dispatcher.so"
> loadmodule "permissions.so"
> loadmodule "sdpops.so"
> loadmodule "rtpengine.so"
>

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com