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From Matt Broadstone <mbroa...@gmail.com>
Subject Re: 0.32 linear store
Date Wed, 13 May 2015 20:12:50 GMT
On Wed, May 13, 2015 at 4:10 PM, Matt Broadstone <mbroadst@gmail.com> wrote:

> On Wed, May 13, 2015 at 4:04 PM, Kim van der Riet <kim.vdriet@redhat.com>
> wrote:
>> The legacystore and linearstore have slightly different directory
>> structures which were designed to be mutually exclusive.  There was some
>> debate as to whether to perform an automatic "upgrade" between these, but
>> it was decided that this would not be a prudent option, as it would make a
>> subsequent downgrade difficult and there would be multiple copies of
>> messages, etc. Also, legacystore is still available, although deprecated.
>> Most users will want to wait until a point where they have no messages to
>> perform an upgrade.
>> For those users which absolutely need to upgrade, there are a few basic
>> manipulations of the store directory that can be performed by hand or
>> script (as they will repeat for each queue present).  While this is simple,
>> it is error-prone, and I don't recommend it unless absolutely necessary.
>> If you need this, I can provide a description of the steps needed.
>> The discussion on this point can be seen here; it also contains an
>> informational description of the directory change:
>> http://mail-archives.apache.org/mod_mbox/qpid-users/201411.mbox/%3C1415731947.26261.81.camel%40localhost%3E
>> Hope that helps,
>> Kim
> Hey Kim,
> I'm actually running this in complete isolation, so it's a "fresh install"
> so to speak. Having said that, qpidd doesn't seem to actually be storing
> anything. I've pointed my store-dir to /var/run/qpidd, and I can see
> there's a "qls" folder there, however when I add a durable topic the size
> of that directory does not increase, and the topic doesn't show up upon
> broker restart. Is there some configuration I'm missing? +1 to this ticket:
> https://issues.apache.org/jira/browse/QPID-5493
> Matt
I should mention that my test case is just: qpid-config -a
user/pass@localhost add exchange topic test.topic --durable


>> On 05/13/2015 03:36 PM, Matt Broadstone wrote:
>>> Hey again,
>>> Another issue I've run into switching to 0.32 is the fact that durable
>>> topics I create are no longer persisted between broker restarts. The 0.28
>>> release that was previously provided only had the legacy store, but 0.32
>>> has the linear store which I'm trying out.
>>> I provide a path to my store-dir and that's it, is there some other
>>> configuration option I'm missing here for this? The qpidd logs don't
>>> indicate any failure, and indicate that the linear-store is in fact being
>>> used. Running qpidd with debug+ shows a whole bunch of information, and I
>>> see the exchanges being added but no corresponding messages from the
>>> store
>>> (this may be expected).
>>> Regards,
>>> Matt
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