Re: Sling Jobs: Ordered Queue and configuration queue.maxparallel

[Konrad Windszus]

Thanks for the clarification, I added the description in 
https://issues.apache.org/jira/browse/SLING-6013 
<https://issues.apache.org/jira/browse/SLING-6013>.
Konrad
> On 29 Aug 2016, at 15:05, Carsten Ziegeler <cziege...@apache.org> wrote:
> 
> Ordered queues are single processing queues, one item after the other.
> This is enforced here:
> 
> https://github.com/apache/sling/blob/trunk/bundles/extensions/event/src/main/java/org/apache/sling/event/impl/jobs/config/InternalQueueConfiguration.java#L224
> 
> Regards
> Carsten
> 
>> Hi,
>> if I read the code in JobQueueImpl correctly even for ordered queues there 
>> are at most <queue.maxparallel> jobs being executed in parallel 
>> (https://github.com/apache/sling/blob/trunk/bundles/extensions/event/src/main/java/org/apache/sling/event/impl/jobs/queues/JobQueueImpl.java#L197
>>  
>> <https://github.com/apache/sling/blob/trunk/bundles/extensions/event/src/main/java/org/apache/sling/event/impl/jobs/queues/JobQueueImpl.java#L197>).
>> Only for the retry handling there seems to be a difference: 
>> https://github.com/apache/sling/blob/trunk/bundles/extensions/event/src/main/java/org/apache/sling/event/impl/jobs/queues/JobQueueImpl.java#L670
>>  
>> <https://github.com/apache/sling/blob/trunk/bundles/extensions/event/src/main/java/org/apache/sling/event/impl/jobs/queues/JobQueueImpl.java#L670>
>> So I am wondering if configuring a Job Queue with Type = Ordered and 
>> queue.maxparallel > 1 leads to parallel job execution (rather than strict 
>> sequential)
>> 
>> Is this a bug in the code or what effects has queue.maxparallel for ordered 
>> queues otherwise?
>> Thanks,
>> Konrad
>> 
> 
> 
> 
> 
> -- 
> Carsten Ziegeler
> Adobe Research Switzerland
> cziege...@apache.org
>