[SR-Users] TCP packet relay delayed (Kamailio 4.1.5)

[Daniel-Constantin Mierla]

Hello,

you can see tcp write queued bytes with:

kamctl rpc core.tcp_info

If you have an older version, do kamcmd core.tcp_info

It may be also the OS queues that are busy, if the other side is not not
reading fast, look at netstat output for Send-Queue in:

netstat -altp

Cheers,
Daniel


On 22.04.18 18:47, Andrew Chen wrote:
> Hello,
>
> Can anyone provide any suggestions on how to log buffer usage?
>
> On Tue, Apr 17, 2018 at 7:46 PM, Andrew Chen <achen at fuze.com
> <mailto:achen at fuze.com>> wrote:
>
>     Thanks Alex for your response.  I honestly forgot about these
>     parameters and will play with them a bit.
>
>     Is there anyway to log how much is written or stored in the buffer?
>
>     On Tue, Apr 17, 2018 at 7:35 PM, Alex Balashov
>     <abalashov at evaristesys.com <mailto:abalashov at evaristesys.com>> wrote:
>
>         Hello,
>
>         Could it be that your send queue or other parameters
>         regulating outgoing
>         flows are too low?
>
>         Stuff like this:
>
>         https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_conn_wq_max
>         <https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_conn_wq_max>
>         https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_wq_max
>         <https://www.kamailio.org/wiki/cookbooks/5.1.x/core#tcp_wq_max>
>
>         -- Alex
>
>         On Tue, Apr 17, 2018 at 05:00:28PM -0700, Andrew Chen wrote:
>
>         > Hi Kamailio community,
>         >
>         > I need your urgent help regarding a situation where the
>         Kamailio TCP packet
>         > delayed in relaying SIP packets.  They delay between the
>         time Kamailio logs
>         > the relay to the time it left the system was ~20 seconds
>         difference, which
>         > is huge in SIP world.
>         >
>         > Any ideas, thoughts or suggestions on how I can narrow down
>         to the
>         > problem?  We have about 30 cases of this today
>         >
>         > Thanks in advance.
>         >
>         > --
>         > Andy Chen
>         > Sr. Telephony Lead Engineer
>         > achen@ <achen at thinkingphones.com
>         <mailto:achen at thinkingphones.com>>fuze.com <http://fuze.com>
>         >
>         > --
>         > *Confidentiality Notice: The information contained in this
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>         >
>         > are hereby notified that any dissemination, distribution or
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>         >
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>         >
>         > please notify the sender and permanently delete the e-mail
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>         >
>         > any attachment for any purpose, nor disclose all or any part
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>         > contents to any other person. Thank you.*
>
>         > _______________________________________________
>         > Kamailio (SER) - Users Mailing List
>         > sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
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>
>         -- 
>         Alex Balashov | Principal | Evariste Systems LLC
>
>         Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>         Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
>         _______________________________________________
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>
>
>
>     -- 
>     Andy Chen
>     Sr. Telephony Lead Engineer
>     415 516 5535 (M)
>     achen@ <mailto:achen at thinkingphones.com>fuze.com <http://fuze.com>
>
>
>
>
> -- 
> Andy Chen
> Sr. Telephony Lead Engineer
> 415 516 5535 (M)
> achen@ <mailto:achen at thinkingphones.com>fuze.com <http://fuze.com>
>
>
> *Confidentiality Notice: The information contained in this e-mail and any
> attachments may be confidential. If you are not an intended recipient, you
> are hereby notified that any dissemination, distribution or copying of
> this
> e-mail is strictly prohibited. If you have received this e-mail in error,
> please notify the sender and permanently delete the e-mail and any
> attachments immediately. You should not retain, copy or use this e-mail or
> any attachment for any purpose, nor disclose all or any part of the
> contents to any other person. Thank you.*
>
>
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-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com

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