[SR-Users] Fwd: Possible memory leak on 5.5.x (new)?

[George Diamantopoulos]

Hello Daniel,

Thanks for the feedback. I think I might have been too quick to blame
htable for this behaviour. In fact, version 5.4 seems to consume more
memory than 5.5 (175129776 bytes vs 20581096), which makes sense since it
has been running for longer (I missed the extra digit previously).

So I'm not sure htable is to blame. On the other hand, I don't see any
other modules using up too much of shmem either, so maybe memory stats
can't provide the answer here?

To answer your question, though, I do use DMQ and both tables that use it
have autoexpire set to the same value on both 5.4 and 5.5:

/etc/kamailio# grep dmq kamailio-module-params.cfg
modparam("dmq", "server_address", "sip:172.30.43.1:5090")
modparam("dmq", "notification_address", "sip:dmq.services.mydomain.com:5090")

modparam("dmq", "multi_notify", 1)
modparam("htable", "enable_dmq", 1)
modparam("htable", "htable",
'cid2hi=>size=8;autoexpire=600;dmqreplicate=1')
modparam("htable", "htable",
'xcid2count=>size=8;autoexpire=600;dmqreplicate=1')

On Wed, 30 Jun 2021 at 17:43, Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
>
> do you replicate items in the htable via dmq? Does the htable have
> autoexpire value set?
>
> Cheers,
> Daniel
> On 30.06.21 13:54, George Diamantopoulos wrote:
>
> Forwarding my reply to the list, using gmail's reply button set Henning as
> the sole recipient :-\
>
> ---------- Forwarded message ---------
> From: George Diamantopoulos <georgediam at gmail.com>
> Date: Sat, 26 Jun 2021 at 02:25
> Subject: Re: [SR-Users] Possible memory leak on 5.5.x (new)?
> To: Henning Westerholt <hw at skalatan.de>
>
>
> Hello Henning,
>
> Thanks for your reply. Here's what has come up after a few hours:
>
> shm55: https://pastebin.com/h9JCePmc
> shm54: https://pastebin.com/Nx5xEEnA
>
> It seems to me htable is the culprit? Are you seeing anything different?
> 54 has been running for 77020 seconds, 55 for 28521 (significantly less).
>
> I'm going to turn it off until we figure something out...
>
> BR,
> George
>
> On Fri, 25 Jun 2021 at 18:17, Henning Westerholt <hw at skalatan.de> wrote:
>
>> Hello,
>>
>>
>>
>> Good observation. Please run the memory statistics CLI commands to get
>> more hints about the module that might cause it (as per below link). Then
>> please report more details. If you can point to a particular module, you
>> can also open an issue on our tracker.
>>
>>
>>
>> https://www.kamailio.org/wiki/tutorials/troubleshooting/memory
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *George
>> Diamantopoulos
>> *Sent:* Friday, June 25, 2021 4:53 PM
>> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>> *Subject:* [SR-Users] Possible memory leak on 5.5.x (new)?
>>
>>
>>
>> Hello all,
>>
>>
>>
>> I'm still investigating the (most likely non-kamailio-related) memory
>> leak of my previous message to the list, there have been no developments so
>> far. I'll update if anything changes.
>>
>>
>>
>> This concerns a new finding which seems to affect kamailio 5.5.x. I have
>> two kamailio instances receiving the same traffic via round-robin. I
>> upgraded only one of them to 5.5.1 and left the other to 5.4.6 as I feared
>> of any issues arising. I was lucky to do so, because with identical
>> configuration, 5.5.x seems to run out of SHM very quickly. Here are links
>> to graphs produced by our monitoring system:
>>
>>
>>
>> Old kamailio (no memory leak): https://pasteboard.co/K8fVBiD.png
>>
>> New kamailio (possible leak): https://pasteboard.co/K8fVS9N.png
>>
>>
>>
>> The configuration uses mtree, htable, vars and vns extensively. Has
>> anyone come across anything similar? Let me know if I can provide any
>> further information to help disect this. Thanks!
>>
>>
>>
>> BR,
>>
>> George
>>
>
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> --
> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
>
>
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