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Re: Deadlock-like behaviour of svnserve in multi-threaded mode (-T)

From: Tomas Bilek <tomas.bilek_at_polarion.com>
Date: Wed, 16 Nov 2016 00:52:56 -0700 (MST)

Hello Ivan,
I am continuing in topic, which Radek has started previously. I have created
networkdump where you can see communication on localhost. Dump was started
approx 5 s before our application started but is starts using SVN later.
There are relative time stamps. Also I have packed process monitor result
but unfortunetely from time after svn starts hang up, because when I was
running process monitor I was not able to reproduce that problem, so I
turned it on after the system hangs.

To logs.
1) Network (network dump
https://drive.google.com/file/d/0ByHPI8jVgwP8ZHJxbHZ5Z3BScVU/view?usp=sharing)
when i filter only tcp.port = 3690 I see that communication stopped and
there is window from 245s until 637s
and this is snippet from our app log
2016-11-07 12:54:20,753 [ObjectIndex-refreshIndex-1 | u:p] INFO
com.polarion.platform.startup - -- -- 631 from 731 objects were refreshed
(86%)
2016-11-07 13:00:54,030 [ObjectIndex-refreshIndex-2 | u:p] INFO
com.polarion.platform.startup - -- -- 731 from 731 objects were refreshed
(100%)
   /////Indexing take some time from 10-20s so the difference 300-400s is
corresponding.

2) Process Monitor (dumps
https://drive.google.com/file/d/0ByHPI8jVgwP8Qm0xa1ExNEQxZFU/view?usp=sharing)
you can filter at start for svnserve.exe. at start 07.11.2016
13:00:52,5687177 there is "disconnect sequence"

Do you think, that it is enough info to determine, where is the problem?

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Received on 2016-11-16 08:53:03 CET

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