[webkit-dev] git.webkit.org problem
wsiegrist at apple.com
Wed Feb 29 18:26:03 PST 2012
On Feb 29, 2012, at 6:22 PM, Mark Rowe wrote:
> On 2012-02-29, at 18:20, Dirk Pranke <dpranke at chromium.org> wrote:
>> On Wed, Feb 29, 2012 at 6:10 PM, Mark Rowe <mrowe at apple.com> wrote:
>>> On 2012-02-29, at 17:05, Lucas Forschler <lforschler at apple.com> wrote:
>>> build.webkit.org should be back online now with 0.8.5.
>>> Thanks for your patience!
>>> For anyone following along at home, upgrading to Buildbot v0.8.5 alone
>>> actually made build.webkit.org substantially slower. After profiling it for
>>> a while we noticed that it was spending an exceptionally long time
>>> performing queries against its SQLite database. Some analysis on the queries
>>> that were being run showed that the database lacked appropriate indices for
>>> the queries, causing full table scans across rather large tables. Ouch. A
>>> few "CREATE INDEX …" statements later and now build.webkit.org is responding
>>> much more quickly than it has been in quite some time.
>>> If anyone notices any bad behavior that they suspect may be related to this
>>> upgrade, please let us know.
>> svn.webkit.org (and trac) appears to be very unhappy at the moment;
>> seems like this is likely related?
> It may be that svn.webkit.org is unhappy about the thundering herd of reconnecting build slaves after the downtime. We'll look in to it.
I'm rebooting it again. I'm not sure if this is the same cause as the overnight problems or the slaves getting new checkouts.
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