← Back to team overview

launchpad-dev team mailing list archive

Re: memcache errors in ec2 and buildbot -- newer python-memcached to blame?

 

On 04/09/12 10:20, Deryck Hodge wrote:
On Mon, Apr 9, 2012 at 8:24 AM, Gary Poster<gary.poster@xxxxxxxxxxxxx>  wrote:
On 04/06/12 03:40, Stuart Bishop wrote:

On Fri, Apr 6, 2012 at 3:51 AM, Gary Poster<gary.poster@xxxxxxxxxxxxx>
  wrote:

I'm seeing these pretty consistently on parallel test runs.  It seems to
affect both test environments.  I filed bug 974632.


Have we considered dropping Memcached? Last I heard, it was only being
used on the front page for cached statistics. For this sort of use, we
could easily replace the IMemcache implementation with something with
less moving parts (simple table in PostgreSQL, global dictionary per
appserver, no storage at all - do we actually gain much with the
cache?). The interface was deliberately simple to allow us to do just
this if Memcached didn't suit our needs.


It would be fine by me, but since Brad and Graham seem to have found the
solution to this particular problem, dropping memcache is out of scope for
my squad right now.


What was the solution?

Cheers,
deryck

https://bugs.launchpad.net/python-memcached/+bug/974632/comments/1

and

https://code.launchpad.net/~bac/python-memcached/bug-974632/+merge/101148

It needs to be incorporated into LP code still. Brad is trying to get a response from upstream, and if we don't soon (I'm not sure what "soon" is; I told Brad a maximum of five days and a minimum of zero and left it to him), we'll do the fork-branch-make-egg dance and release it locally.

Gary



Follow ups

References