[rules-users] 5.5 Beta1 Guvnor Issue 500 The call failed on the server

[alopez]

Hi, 

I'm migrating rules from a Guvnor 5.2.x site to the new beta, I did this by
exporting the old repo and importing in the new one. 

I can see the packages and rules OK now in the new 5.5 Beta 1, creating
snapshots works OK. But build does not, I get an: 

500 The call failed on the server; see server log for details 

http://drools.46999.n3.nabble.com/file/n4020260/Screen_Shot_2012-10-12_at_4.06.40_PM.png
 

This is every time I try to build, either with the Build whole package
option of the built in selector option. 

Is this happening to someone else? Is this way of migrating rules the
recommended procedure? 

Thanks



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Re: [rules-users] 5.5 Beta1 Guvnor Issue 500 The call failed on the server

[alopez]

Thanks, and I forgot to explain that, the console in the server is completely
silent, if I create a snapshot I can see some Info messages displaying,
but when building and the error appears the console has no messages.



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Re: [rules-users] 5.5 Beta1 Guvnor Issue 500 The call failed on the server

[alopez]

Yes, that is the one we are monitoring (tomcat in this case), we see this:

INFO  12-10 11:58:59,435 (LoggingHelper.java:info:49) USER:admin
CREATING MODULE SNAPSHOT for module: [ihtsdoBaseRules] snapshot name:
[ihtsdoBaseRules

but it does not show anything new if we try to build...



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Re: [rules-users] 5.5 Beta1 Guvnor Issue 500 The call failed on the server

[alopez]

Thanks, will do that.



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Re: [rules-users] Memory leak in 5.2/5.3

[alopez]

Hi Marc, Mario,

I'm using the same test case on this thread, and oing more tests I now
realized what is the problem, this leak appears only if the pom file has the
dependency to jbpm-bpmn2 5.1.0.Final along with Drools 5.2.x or 5.3.x.

Re-reading Jamie's post earlier I was puzzled by his reference to jbpm-bpmn2
5.1.1.Final, because is not listed as a version on
http://www.jboss.org/jbpm, but looking at the public maven repo I saw it
really exists, using that version of JBPM resolved the problem, even for
5.2.0.Final.

So in summary Drools 5.2.x and forward do not work properly with JBPM
5.1.0.Final, it would probably be helpful to add some reference to this in
the release notes. And also maybe provide a link to JBPM 5.1.1.Final that I
only saw in the maven repo, no documentation or download link is available
in JBPM site.

Thanks for your help

Alejandro


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Re: [rules-users] Memory leak in 5.2/5.3

[alopez]

Yes, I got the same exception, you can't remove all listeners from the
outside (at least in 5.2.0.Final), that's why I patched the
AbstractWorkingMemory class to hardcode the listeners removal inside Drools.

But now that I found JBPM 5.1.1.Final that seems to solve the problem in a
better way, the memory leak doesn't appear in my tests using that version of
jbpm in combination with Drools.

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Re: [rules-users] Memory leak in 5.2/5.3

[alopez]

Good news, I followed your advice and patched drools-core to prevent this,
focusing on removing all listeners:

AbstractWorkingMemory.java, line 1246:

for ( Iterator it = this.__ruleBaseEventListeners.iterator(); it.hasNext();
) {
   this.ruleBase.removeEventListener( (RuleBaseEventListener) it.next()
);
}

I changed that to:

for ( Iterator it = this.ruleBase.getRuleBaseEventListeners().iterator();
it.hasNext(); ) {
   this.ruleBase.removeEventListener( (RuleBaseEventListener) it.next()
);
}

And now works OK, no memory leak.

Thanks



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Re: [rules-users] Memory leak in 5.2/5.3

[alopez]

This memory leak is giving us a lot of problems... we need to iteratively
test 400,000 items, one session for each. It was working fine with 5.1.1 and
now is failing. 

Thanks for the test case, is very simple to reproduce, but I tried running
it with:

dependency
groupIdorg.drools/groupId
artifactIdknowledge-api/artifactId
version5.3.0.CR1/version
/dependency
... etc.

And still fails, so I don't fully trust that this will be fixed on 5.3.0...
do you have confirmation?

I need to decide if I wait for 5.3 or if I advice to roll back to 5.1.1.

Thanks

Alejandro

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[rules-users] Guvnor support of custom operators

[alopez]

Hi,

I'm using custom operators in Drools, implementing EvaluatorDefinition and
BaseEvaluator interfaces, and adding them to the
KnowledgeBuilderConfiguration. (tested on 5.01)

Is there a way to make these new operators available in the Guvnor guided
editor?

Thanks!

Alejandro
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