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From Philip Martin <>
Subject Re: An error occurred during decompression
Date Tue, 04 Nov 2014 11:26:55 GMT
"Chao.Guan" <> writes:

> I am using TortoiseSVN 1.8.7, Build 25475 - 64 Bit on my Win7. I happened to
> see this information while updating contents: "ra_serf: An error occurred
> during decompression".
> I have searched the source code of TortoiseSVN 1.8.7 but didn't find any
> related code about it.
> I can't locate which commit cause the problem because there are about 100
> commit and each commit has 40-50M and plenty of files.
> Can you guys give me some hints? What caused this error? What can I do to
> fix it?
> By the way, one of my colleagues is using TortoiseSVN 1.7.11 on Win7, he has
> this problem: "REPIRT of '/svn/st/!svn/vcc/default': Could not read chunk
> size: Secure connection truncated". Maybe those two error reports has the
> same root cause. Also, I can't find the related source code.
> Guys, help me with that, please!

There is a serf bug that causes an error on checkout/update bigger than

  svn: E120104: ra_serf: An error occurred during decompression 

This was fixed in serf 1.3.8.  You may be able to work around this bug
by disabling skelta mode on the client:

You can also work around the bug by disabling HTTP compression on the
client or the server.  However if the server is Apache 2.2 and you
disable HTTP compression on the client while it remains enabled on the
server you may trigger an Apache bug:

  1.8 client:
  svn: E120106: ra_serf: The server sent a truncated HTTP response body. 

  1.7 client:
  svn: E175002: REPORT of '...': Could not read chunk size: connection was closed by server

The Apache bug is a server crash so one user may see the error when some
other user triggers the bug.  The Apache bug is fixed in 2.4.  You can
work around the Apache bug by disabling HTTP compression on the server.

Note HTTP compression is distinct from the deltas that Subversion uses
between client and server.  Disabling HTTP compression does not stop
Subversion clients sending/receiving deltas.  Disabling HTTP compression
will mostly affect non-Subversion clients such as web browsers.

Philip Martin | Subversion Committer
WANdisco // *Non-Stop Data*

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