Re: [SOGo] Repeated socket shutdown

[Christian Mack]

Hello

You have a user xxxxx with a lot of changes in his/her INBOX.
To get all changes from the IMAP server, SOGo takes 69.209102 seconds.



You have to increase your timeout on the apache side.


Kind regards,
Christian Mack

Am 16.09.22 um 12:23 schrieb David Kmoch (david.km...@tul.cz):

But Apache actively closes the connection before the result can be delivered. Therefore the web frontend tries to get the changes again, which breaks again and so forth.

Hello,

some users are able to completely block a sogo worker. I have no idea
how they achieve this, but I would rather know how to prevent it on
the server side (except blocking their IP), since it repeats over and
over lasting from several hours to several days.

Apache log:

[proxy_http:error] [pid 18588:tid 139754100205312] (70007)The timeout specified has expired: [client 149.255.xxx.xxx:55788] AH01102: error reading status line from remote server 127.0.0.1:20000, referer: https://webmail.tul.cz/SOGo/so/xxxxx/Mail/view [proxy:error] [pid 18588:tid 139754100205312] [client 149.255.xxx.xxx:55788] AH00898: Error reading from remote server returned by /SOGo/so/xxxxx/Mail/0/folderINBOX/changes, referer: https://webmail.tul.cz/SOGo/so/xxxxx/Mail/view

SOGo log:


14:04:59 sogod [72665]: |SOGo| request took 69.209102 seconds to execute


The worker thread eats %100 CPU during that sequence.

Running version 5.7.1 on RHEL8, LDAP auth, no EAS.

Any idea what can be wrong or what to look for?

14:03:50 sogod [72665]: |SOGo| starting method 'POST' on uri '/SOGo/so/xxxxx/Mail/0/folderINBOX/changes' 14:04:50 sogod [72650]: [WARN] <0x0x55b769ba5580[WOWatchDogChild]> pid 72665 has been hanging in the same request for 1 minutes 14:04:59 sogod [72665]: [ERROR] <0x0x55b76b51a350[WOHttpTransaction]> client disconnected during delivery of response for <WORequest[0x0x55b76b14e210]: method=POST uri=/SOGo/so/xxxxx/Mail/0/folderINBOX/changes app=SOGo rqKey=so rqPath=xxxxx/Mail/0/folderINBOX/changes> (len=328115): the socket was shutdown

--
Christian Mack
Universität Konstanz
Kommunikations-, Informations-, Medienzentrum (KIM)
Abteilung IT-Dienste Forschung, Lehre, Infrastruktur
78457 Konstanz
+49 7531 88-4416

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