Replica mailboxes changing partitions during delayed deletes

[Michael Menge]

Quoting Bron Gondwana <brong at fastmail.fm>:

> On Mon, Nov 23, 2009 at 02:59:47PM -0600, Paul Engle wrote:
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>>
>> All,
>>
>> We've just upgraded our first replicated pair of cyrus servers
>> to 2.3.15, and I'm seeing what I consider odd behavior on the
>> replica of the pair.
>>
>> A brief rundown of our configuration:
>>
>> Both servers running RHEL5, cyrus-imapd-2.3.15
>> Three partitions on each server: cyrus1a (default), cyrus1b,
>> cyrus1c
>> Delayed delete is turned on for both the master & the replica
>>
>> This morning, when I performed a user cleanup and deleted a
>> batch of user INBOXes, I noticed the sync_server process was
>> going dog-slow and the replication log was backing up on the
>> master.
>>
>> It turns out that, on the replica, when a mailbox gets deleted,
>> the DELETED mailbox is being put on the default partition
>> rather than the partition it started on. As a result, anything
>> not native to the default partition is having to get copied
>> from one filesystem to the other, causing the replication to
>> slow down considerably. On the master server, the DELETED
>> mailbox is put on the same partition it started on.
>>
>> Is this desired behavior? I wouldn't think so, and at this
>> point I'm going to have to turn off delayed deletes on our
>> replica target so that the sync_server stops bogging down.
>
> Oh man - that's almost certainly a bug!  We don't notice it
> at FastMail because we only have one partition per server.
> I'll check it out.
>
This might be an other BUG introduces by making the
defaultpartition optional.


See BUG 3170 http://bugzilla.andrew.cmu.edu/show_bug.cgi?id=3170

Regards

      Michael Menge

--------------------------------------------------------------------------------
M.Menge                                Tel.: (49) 7071/29-70316
Universität Tübingen                   Fax.: (49) 7071/29-5912
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