[aerogear-dev] verification of JMS workflow

[Lukas Fryc]

I've discussed this further with Tomas and he told me he successfully
tested that our impl does not exceed given (configured) memory limits.

You have to switch the queue settings to: address-full-policy=BLOCK
(default is PAGE, which can cause exceeding the disk space and perhaps slow
down the node if there are really lot of recipients. which is, well, not
ideal) :-).
The best option would be to use address-full-policy=FAIL. I believe this
will fail transaction and the queue will try to redeliver, but still have
to get to confirming that. (This can be configured to exponential back-off
and try to deliver so many times that it really does its job (such as try
to redeliver after 5 seconds, but repeat that e.g. up to 2 hours, then fail
the message finally as non-deliverable)).

On Thu, Nov 5, 2015 at 10:43 AM, Lukas Fryc <lfryc at redhat.com> wrote:

> I've updated the related issue to track the idea:
> https://issues.jboss.org/browse/AGPUSH-1521
>
> On Thu, Nov 5, 2015 at 9:22 AM, Matthias Wessendorf <matzew at apache.org>
> wrote:
>
>> awesome, great to hear -
>>
>> For the 1.1.x (mainly 1.1.1 first ;-)) let's see if we can provide an
>> optimized strategy. Lukas was already hinting this on IRC.
>>
>> Tomas, thanks for the updates and the testing effort!
>>
>> On Thu, Nov 5, 2015 at 8:57 AM, Tomáš Hradec <thradec at gmail.com> wrote:
>>
>>> Hi all
>>>
>>> I did some testing of JMS workflow used in UPS during sending
>>> notifications. I can confirm, that suggested blocking strategy, as
>>> protection against OOM errors, works as expected. However in worst scenario
>>> could cause blocking 6 of 20 threads (from MDBs pool). So I would suggest
>>> using different approach, with more optimal resource usage, some options
>>> were discussed already with Lukas.
>>>
>>> Regards
>>> Tomas
>>>
>>>
>>> _______________________________________________
>>> aerogear-dev mailing list
>>> aerogear-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/aerogear-dev
>>>
>>
>>
>>
>> --
>> Matthias Wessendorf
>>
>> blog: http://matthiaswessendorf.wordpress.com/
>> sessions: http://www.slideshare.net/mwessendorf
>> twitter: http://twitter.com/mwessendorf
>>
>> _______________________________________________
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>> aerogear-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/aerogear-dev
>>
>
>
>
> --
> Lukáš Fryč
> Software Engineer
> Red Hat Mobile | AeroGear.org, FeedHenry.org
>



-- 
Lukáš Fryč
Software Engineer
Red Hat Mobile | AeroGear.org, FeedHenry.org
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