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From Nouha Terzi <terzi.no...@gmail.com>
Subject Re: Performance issue with svn export [svn 1.8.11]
Date Wed, 03 Jun 2015 07:28:56 GMT
Many thanks.
I am going to modify my config as recommended.

Once again many thanks for your great support.


regards,
Nouha

2015-05-31 10:40 GMT+01:00 Stefan Fuhrmann <stefan.fuhrmann@wandisco.com>:

> From: Nouha Terzi <terzi.nouha_at_gmail.com>
> Date: Tue, 26 May 2015 17:05:41 +0100
>
> Hello all,
>>
>> we are deploying svn 1.8.11 on our server Rhel 6.6.
>> We are facing some issue within svn export.
>> it seems that it has some perf limitation when dealing with a huge number
>> of files.
>>
>> we have this delay when doing an svn export url and the target has:
>>
>> less than 20k files export = ~ 1 minute
>>
>> more than 30k files export > 1 hour
>>
>> Is it a known issue? Has someone encouter thsi behavior?
>>
>
> There is a known issues that might apply: The number of
> entries (immediate children) in a directory should not exceed
> a few 1000, see the warning box in 1.7 release notes:
>
>
> http://subversion.apache.org/docs/release-notes/1.7.html#server-performance-tuning
>
> If all 30k files are from a single "flat" directory or is there one
> large directory somewhere in this tree, you'll hit that issue.
>
> Having directories with many 1000 entries is all kinds of bad.
> Don't do it. If you really have to do it, increase the SVN server
> cache size. Note that you have to quadruple the cache size
> to double the maximum cache-able object size.
>
> -- Stefan^2.
>

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