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From Aiman <an2...@columbia.edu>
Subject Re: UIMA-AS: sendAndRecieveCAS hangs with no response
Date Sat, 23 Mar 2013 15:29:29 GMT
Hi all -

After some debugging, it turned out that this is caused by the Cas 
Multipliers that I have in my pipleline. When I remove them from the 
pipeline it performs very well. I was wondering if there are any 
considerations that I have to make when using cas multipliers with 
UIMA-AS ? Are there any settings that I have to change to the 
descriptor?

Thanks

On 2013-03-23 15:01:42 +0000, Aiman said:

> Hello all -
> 
> I have been able to successfully deploy my pipeline using UIMA-AS, I 
> tested it through command line tools and received the output CAS. I was 
> then able to programmatically call the service using Client API both 
> asynchronous and synchronously. However, for some reason, after few 
> runs it stopped working.
> 
> Now whenever I call sendAndReceiveCAS it just blocks without receiving 
> any response, viewing uima.log did not help as I only found some INFO 
> messages without any errors. sendCAS is more of a hit and miss, it 
> works sometimes and sometimes it does not. I do not understand what 
> causing this and I don't know how to troubleshoot it. I've tried to 
> purge activemq queue, restart it, restart the AS service, changed the 
> queue name. But none of that helped. When I try to terminate the 
> service (using s+Enter), it also hangs after showing a few lines of 
> "....... AnalysisEngineInstancePool.destroy() was called".
> 
> I know it's getting stuck somewhere, but my pipeline is very 
> lightweight and it takes a few milliseconds directly without UIMA-AS. I 
> would apperciate any help in troubleshooting this.
> 
> Thanks!




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