subversion + serf + kerberos + https hangs

[GoogleCodeExporter]

Checking out a medium sized repo using kerberos and https
hangs in mid air. Kill with Ctrl-C and do svn update and it too
hangs before finished.

However, following this advise about apache:
The MaxKeepAliveRequests option in httpd.conf needs to be increased from 100 
(the default) to at least 1000 (there is no reason why it could not be 10000). 
This will improve performance by allowing serf clients to use fewer TCP 
connections to the server. Clients using neon will also work fine with this 
configuration.

Makes the hangs go away. Seems like there is a bug in serf handling low numbers
for MaxKeepAliveRequests

subversion 1.8.13 and serf 1.3.8

Original issue reported on code.google.com by [email protected] on 24 May 2015 at 4:47