[MLton] Slow commits to MLton's SVN repository
fluet at tti-c.org
Fri Feb 2 11:44:12 PST 2007
>> For the second time I encountered difficulty performing a largish (but
>> that large) commit to MLton's SVN repository. Looking at ps output, the
>> commit ran for at least about 40 minutes before I decided to give up and
>> perform multiple small commits instead. What could be the problem?
>> Is the
>> SVN server very old? Are precommit scripts taking ages?
> I'm running into this as well, trying to commit the merge of some trunk
> revisions into the x86_64 branch (which I do not want to split into
> separate commits).
> It's definitely some sort of problem with the pre-commit scripts.
There was a 'set -x' in the 'pre-commit' script; this seems to have
flooded stdout in a way that wedged the processes. (Presumably the
process that launches 'pre-commit' doesn't connect stdout to a consumer,
so things get stuck if 'pre-commit' generates more than a single pipe
buffer's worth of data.)
Should have seen that immediately from the strace showing the pre-commit
blocked on write.
In any case, removing the 'set -x' let my commit go through, in under
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