Performance and Reliability problems using write-through proxy configuration
From: Edward Ned Harvey <edward.harvey_at_patni.com>
Date: Wed, 23 Sep 2009 14:30:01 -0400
I've only seen this problem twice so far, so I'm fuzzy on the details just now, but it's twice among two users in the last 2 days. So if it continues, it'll be significant...
We have a brand new write-through proxy configuration. Running SVN 1.5.7 on ... whatever apache is included with Centos 5.3 ... I think it's apache 2.2 ...
A master is located in California. A slave in Boston. We're planning to add more slaves throughout the world. Issues we're presently seeing are:
* During commits, it runs *really* slow. Significantly slower than it would, if the clients were talking directly to the WAN server, without any slaves.
* During small commits, no problem. During large commits ... this is really strange ... It sends some files, and then reports some error messages, and says "commit failed." After that, when you do an svn status -u it appears as if the files have not made it in. But if you wait a few minutes, then do an "svn update", the files are synchronized to what was committed.
Again, details are fuzzy for now, because I haven't been able yet to systematically investigate it. But I thought I'd post prematurely and see if anyone says I'm crazy, or whatever, before I really dig into it.
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