Thanks Hugues, suggestion of JCasPool is very interesting, we have some
doubts but I'll open another thread for that.
Regarding our problem with concurrent requests, we tried to use
stricImports but then appears another exception (but other exceptions can
appears):
Caused by: java.lang.RuntimeException: Type 'com.aia.tas.uima.types.
Anonymous.ControlRuleDetection' not found
at org.apache.uima.ruta.RutaEnvironment.importDeclaredTypes(
RutaEnvironment.java:310)
We have the type 'com.aia.tas.uima.types.ControlRuleDetection' without
Anonymous.
Temporaly we have a workaround, we did a wrapper of RutaEngine putting a
synchronized in the process method, doing this all is working properly.
2017-06-06 15:49 GMT+02:00 Hugues de Mazancourt <[email protected]>:
> Hi,
>
> From my experience, Ruta is actually thread-safe and use of «
> strictImports » solves many of the type ambiguities between Ruta and DKPro.
> In a concurrent environment, you will certainly gain performance by using
> a JCasPool for creating your CASes
>
> Best,
>
>
> — Hugues de Mazancourt
>
>
>
> > Le 6 juin 2017 à 15:13, Josep María Formentí Serra <[email protected]>
> a écrit :
> >
> > Thanks Peter,
> >
> >> Could it be that you create the CAS differently in your concurrent
> >> setting? For example JCasFactory vs ae.newCAS()?
> >
> > CAS is created ever using JCasFactory, we revise if there are something
> > wrong in the reader.
> >
> >> Anyways, this exception in this situation (using DKPro Core) is really
> >> annoying. Did you try to activate strictImports?
> >
> > It's really annoying, we have a set of requests to test the web service.
> If
> > we execute the set of test with one thread all is ok, no exception, but
> > when we execute the same set with more than one thread, the exceptions
> > appears.
> >
> >> If this does not help, do you have a minimal reproducible example?
> >
> > No, I haven't, I'll check the code and if I don't find the solution, I'll
> > try to prepare a minimal example to reproduce the problem
> >
> > 2017-06-06 11:46 GMT+02:00 Peter Klügl <[email protected]>:
> >
> >> Hi,
> >>
> >>
> >> UIMA Ruta should be threadsafe.
> >>
> >>
> >> Could it be that you create the CAS differently in your concurrent
> >> setting? For example JCasFactory vs ae.newCAS()?
> >>
> >> The exception indicates that Ruta cannot resolve the mention "Document"
> >> correctly since it is an alias of uima.tcas.DocumentAnnotation and the
> >> short name of the DKPro type. This exception should also occur in a
> >> non-concurrent setting.
> >>
> >> Anyways, this exception in this situation (using DKPro Core) is really
> >> annoying. Did you try to activate strictImports?
> >>
> >>
> >> If this does not help, do you have a minimal reproducible example?
> >>
> >>
> >>
> >> Best,
> >>
> >> Peter
> >>
> >>
> >> Am 06.06.2017 um 11:03 schrieb Josep María Formentí Serra:
> >>> Hi all,
> >>>
> >>> We are building a web service using directly the RutaEngine, in the
> >>> inicialization the engine is built as:
> >>>
> >>> UIMAFramework.produceAnalysisEngine(AnalysisEngineFactory
> >>>
> >>> .createEngineDescription(createEngineDescription(RutaEngine.class,
> >>> RutaEngine.PARAM_RULES,
> >>> rule.getRule().getConditions()))));
> >>>
> >>> And then we call method *process *passing the *JCas*.
> >>>
> >>> All is ok but when we receive concurrent requests, starts to appears
> >> many
> >>> exceptions like these:
> >>>
> >>> Caused by: java.lang.IllegalArgumentException: Document is ambiguous,
> >> use
> >>> one of the following instead : uima.tcas.DocumentAnnotation
> >>> de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Document
> >>> at
> >>> org.apache.uima.ruta.RutaEnvironment.getType(RutaEnvironment.java:459)
> >>> ~[ruta-core-2.6.0.jar:2.6.0]
> >>>
> >>> Caused by: java.lang.NullPointerException: null
> >>> at java.util.ArrayList.addAll(ArrayList.java:577) ~[na:1.8.0_66]
> >>> at
> >>> org.apache.uima.ruta.condition.ImplicitCondition.eval(
> >> ImplicitCondition.java:70)
> >>> ~[ruta-core-2.6.0.jar:2.6.0]
> >>>
> >>> Is UIMA Ruta thread safe? we are doing something wrong?
> >>>
> >>> Thanks in advance,
> >>> JM
> >>>
> >>
> >>
> >
> >
> > --
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> > Josep Mª Formentí Serra <[email protected]>
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> 88
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