Does VisualSVN Server 3 support HTTP compression?

Question

Does anyone know if version 3 of VisualSVN server supports HTTP compression? It was in 2.0 then dropped in 2.0.4 and I thought it was meant to be incorporated back into 3 but now can’t find any references (Visual SVN is very light on documentation).

Answer 1

No, VisualSVN Server doesn't support HTTP compression and most likely will not support it in future because of memory leaks in mod_dav_svn/mod_deflate (SVN-3084).

But Subversion deltas already self-compressed so there is no big benefit to use HTTP compression for Subversion traffic.

UPDATE: The (SVN-3084) issue has been fixed, so VisualSVN Server will support HTTP compression someday, but currently it doesn't. You may add the following lines to %VISUALSVN_SERVER%\conf\httpd-custom.conf if you really want HTTP compression in VisualSVN Server:

LoadModule deflate_module bin/mod_deflate.so

# Disable builtin Subversion compression
SVNCompressionLevel 0

# Enable HTTP compression
DeflateCompressionLevel 5
SetOutputFilter DEFLATE

IMPORTANT: Make sure that you are using VisualSVN Server 3.5.7 or later, otherwise you may get excessive memory usage in some cases.