[ZODB-Dev] RelStorage 1.5.0b1 dry-run > two phase pack, better pack lock behaviour

[Shane Hathaway]

On 02/25/2011 08:31 AM, Martijn Pieters wrote:
> On Thu, Feb 24, 2011 at 16:56, Martijn Pieters<mj at zopatista.com>  wrote:
>> I see a lot of transaction aborted errors on the ZODB multi-thread
>> tests with this patch in place, so I'll have to investigate more.
>> Thread debugging joy!
>
> In the end it was a simple mistake in the PostgreSQL version of the
> commit lock method signature; a True instead of  False made the NOWAIT
> variant the default. Oops!
>
> The tests now pass against PostgreSQL. I haven't been able to get the
> tests working against a MySQL 5.5 server on my laptop though (OS X
> 10.6), but the tests fail without the patch too. It looks like the
> concurrent tests are not closing database connections or something. If
> someone with a working MySQL test setup can report if the patch works,
> that'd be much appreciated. See:
>
>    https://bitbucket.org/mjpieters/relstorage-mq/src/tip/nowait_commitlock_pack.patch
>
> In the meantime, I'll bite the bullet and try this out on the production server!

My Buildbot is reporting success with all 3 databases on several 
platforms, so it's looking good.  It's having trouble on Windows, but I 
suspect that's a build bug, not a software bug.  RelStorage supports 
MySQL 5.1, but not 5.5 yet.

Shane