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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">the output below indicates the memory allocated in the individual functions. So it seems that the
</span><span lang="EN-GB">mem_copy_subs_noc() function allocates a lot of memory. It is increasing over time? The final output looks like a wrapping error, the counter goes negative.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Which version of Kamailio do you use on the server?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Henning</span><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Henning Westerholt –
</span><span style="mso-fareast-language:EN-US"><a href="https://skalatan.de/blog/"><span lang="EN-GB" style="color:#0563C1">https://skalatan.de/blog/</span></a></span><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Kamailio services –
</span><span style="mso-fareast-language:EN-US"><a href="https://gilawa.com/"><span lang="EN-GB" style="color:#0563C1">https://gilawa.com</span></a></span><span style="mso-fareast-language:EN-US">
<span lang="EN-GB"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><b>From:</b> sr-users <sr-users-bounces@lists.kamailio.org>
<b>On Behalf Of </b>Albert Petit<br>
<b>Sent:</b> Thursday, September 9, 2021 11:42 PM<br>
<b>To:</b> SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List <sr-users@lists.sip-router.org><br>
<b>Subject:</b> [SR-Users] Question about suspected memory leak presence module<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Hi,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I am suspecitng presence module might be having a memory leak on a production server used by an end user (not have access to it).<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">The output of command kamcmd mod.stats presence shm is<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Module: presence<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt">{<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> mem_copy_subs(148): 25720<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> mem_copy_subs_noc(214): 1672201904<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> mem_copy_subs_noc(251): 678406560<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> add_event(181): 88<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> shm_copy_event(57): 40<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> shm_copy_event(50): 312<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> add_event(156): 40<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> add_event(149): 456<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> new_shtable(66): 5767168<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> new_shtable(53): 262144<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> init_evlist(289): 16<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> Total: -1938302848<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt">}<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I am not sure what mem_copy_subs_noc is meaning. And final output is negative, SHM is incfreasing all the time but not sure of the root cause<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">is this a reasonable hint that a memory leak is related to presence?<o:p></o:p></p>
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