[rules-users] Problem using KnowledgeAgent
Mark Proctor
mproctor at codehaus.org
Fri Feb 20 11:15:10 EST 2009
Mark Proctor wrote:
> Seaver, Daniel (GE Healthcare) wrote:
>> Thanks for the clarification, Mark.
>>
>> I followed your links to get the latest of the greatest. Happy to see
>> all those blue circles in the build history. I downloaded:
>>
>> drools-5.0.0.SNAPSHOT-eclipse-all.zip
>> drools-5.0.0.SNAPSHOT-guvnor.zip
>>
>> Then I updated eclipse with the contents of ...eclips-all.zip,
>> Started eclipse and created a new runtime (which I put in my
>> jboss/server/default/lib folder and verified that the ones I had
>> installed there before were changed). I replaced the M5 version of
>> guvnor with the new one, and restarted everything.
>>
>> That should be all I need to do, right? Been at this for a while, so
>> I may be having a mental lapse.
>>
>> Anyways, several projects that I could build before the upgrade don't
>> build anymore. The build process hangs in Guvnor, as well as in Eclipse.
>>
>> This is the last output I get in the server's log when trying to
>> compile the package I'm using for our test:
>>
>> 21:27:25,132 INFO [STDOUT] DEBUG 19-02 21:27:25,132
>> (_SelectorManager.java:<init>:27_) Loading selectors
>>
>> 21:27:25,195 INFO [STDOUT] DEBUG 19-02 21:27:25,195
>> (_ContentManager.java:<init>:45_) Loading content properties
>>
>> The last thing I see in Eclipse when I try a complete clean on our
>> primary application is:
>>
>> Building Workspace - Building all...: Invoking "Drools Builder'
>> on '/cbo-ejb'.
>>
>> The status shows 46% complete and just hangs there.
>>
>> I think it's time for a cocktail and a nice long sleep. I'll check in
>> tomorrow before rolling back to M5.
> can you look in the error logs? I was really hoping to CR1 over the
> weekend. But we need to be sure these issues are gone.
Also if it's in guvnor and eclipse it sounds like a generic problem with
drools compiler. Can I ask you to remove the plugin and try and build
the rules via the knowledgebuilder yourself, hopefully you'll find the
deadlock there yourself and be able ot print a stack trace we can
actually use. Along with the offending rules.
Mark
>>
>> Dan
>>
>> ------------------------------------------------------------------------
>> *From:* Mark Proctor [mailto:mproctor at codehaus.org]
>> *Sent:* Thursday, February 19, 2009 3:25 PM
>> *To:* Rules Users List
>> *Subject:* Re: [rules-users] Problem using KnowledgeAgent
>>
>> On the left side you see a list of red and blue circles, red
>> indicates that build was a failure and blue a success:
>> https://hudson.jboss.org/hudson/job/drools/
>>
>> The last successful build has it's artifacts at:
>> https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/
>>
>> As you can see the last build was successful so now you can get all
>> the binaries from above.
>>
>> Mark
>> Edson Tirelli wrote:
>>>
>>> The tests are fixed and committed to revision #25353.
>>>
>>> []s
>>> Edson
>>>
>>> 2009/2/19 Mark Proctor <mproctor at codehaus.org
>>> <mailto:mproctor at codehaus.org>>
>>>
>>> Dan Seaver wrote:
>>>> Yes, the exception occurs on both the filesystem and Guvnor, and it happens
>>>> whether I set the value to true or false.
>>>>
>>> I found the issue and reviewed the agent code and this has been
>>> fixed in trunk. Edson si just fixing two failing tests, but as
>>> soon as the build turns blue again grab the latest artifact
>>> builds and give it a try:
>>> https://hudson.jboss.org/hudson/job/drools/
>>>
>>> Mark
>>>
>>>> Michael Neale wrote:
>>>>
>>>>> So from the filesystem it won't pick up changes? (does it throw the
>>>>> same exception).
>>>>>
>>>>>
>>>>> On Thu, Feb 19, 2009 at 5:34 AM, Dan Seaver <dan.seaver at ge.com> <mailto:dan.seaver at ge.com> wrote:
>>>>>
>>>>>> Mark,
>>>>>> I have some more information for you. The exception occurs when I issue:
>>>>>>
>>>>>> agent.monitorResourceChangeEvents(true|false)
>>>>>>
>>>>>> If I comment out that code, I don't get the exception, but I don't get
>>>>>> changes either. I tried it with both the Guvnor repository and with a
>>>>>> deployed package on the file system.
>>>>>>
>>>>>> I won't have time to create the test you requested until the weekend. Let
>>>>>> me
>>>>>> know if you still want it.
>>>>>>
>>>>>> Dan
>>>>>>
>>>>>>
>>>>>> Mark Proctor wrote:
>>>>>>
>>>>>>> Dan Seaver wrote:
>>>>>>>
>>>>>>>> I setup a KnowledgeAgent using the example code in the JavaDoc for
>>>>>>>> KnowledgeAgentFactory to access a compiled package in Guvnor. The
>>>>>>>> package
>>>>>>>> runs fine, but changes to the package are not picked up. I believe this
>>>>>>>> is
>>>>>>>> due to the ChangeSet notification thread being interrupted. But why?
>>>>>>>>
>>>>>>>>
>>>>>>> Hmm that's not good. I have the following unit test:
>>>>>>> http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/agent/KnowledgeAgentTest.java
>>>>>>>
>>>>>>> Could you provide an update for new tests for detecting url changes?
>>>>>>> When making the test you might find it easier to look at the previous
>>>>>>> ruleagent tests:
>>>>>>> http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-core/src/test/java/org/drools/agent/URLScannerTest.java
>>>>>>>
>>>>>>> Mark
>>>>>>>
>>>>>>>> Also, I'm getting some messages about failing to read schema document.
>>>>>>>> I
>>>>>>>> think it is caused by the xml for the ChangeSet, but I'm using the
>>>>>>>> example
>>>>>>>> from the JavaDocs.
>>>>>>>>
>>>>>>>>
>>>>>>> We haven't provided an XSD yet, so it'll provide schema validation
>>>>>>> issues, those can be ignored.
>>>>>>>
>>>>>>>> Here's a snippet from the log:
>>>>>>>>
>>>>>>>> [2009:02:48 23:02:905:info] KnowledegAgent has started listening for
>>>>>>>> ChangeSet notifications
>>>>>>>> [2009:02:48 23:02:905:info] KnowledgAgent created, with configuration:
>>>>>>>> monitorChangeSetEvents=true scanResources=true scanDirectories=true
>>>>>>>> [2009:02:48 23:02:905:exception
>>>>>>>> java.lang.RuntimeException: KnowledgeAgent ChangeSet notification
>>>>>>>> thread
>>>>>>>> has
>>>>>>>> been interrupted
>>>>>>>> at
>>>>>>>> org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.run(KnowledgeAgentImpl.java:465)
>>>>>>>> at java.lang.Thread.run(Unknown Source)
>>>>>>>> Caused by: java.lang.InterruptedException
>>>>>>>> at
>>>>>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(Unknown
>>>>>>>> Source)
>>>>>>>> at
>>>>>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown
>>>>>>>> Source)
>>>>>>>> at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
>>>>>>>> at
>>>>>>>> org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.run(KnowledgeAgentImpl.java:463)
>>>>>>>> ... 1 more
>>>>>>>> [2009:02:48 23:02:937:info] KnowledegAgent has stopped listening for
>>>>>>>> ChangeSet notifications
>>>>>>>> (null: 1, 207): schema_reference.4: Failed to read schema document
>>>>>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>>>>>> the
>>>>>>>> document could not be read; 3) the root element of the document is not
>>>>>>>> <xsd:schema>.
>>>>>>>> (null: 1, 207): cvc-elt.1: Cannot find the declaration of element
>>>>>>>> 'change-set'.
>>>>>>>> (null: 1, 216): schema_reference.4: Failed to read schema document
>>>>>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>>>>>> the
>>>>>>>> document could not be read; 3) the root element of the document is not
>>>>>>>> <xsd:schema>.
>>>>>>>> (null: 1, 343): schema_reference.4: Failed to read schema document
>>>>>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>>>>>> the
>>>>>>>> document could not be read; 3) the root element of the document is not
>>>>>>>> <xsd:schema>.
>>>>>>>> [2009:02:48 23:02:390:info] KnowledgAgent applying ChangeSet
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> rules-users mailing list
>>>>>>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> --
>>>>>> View this message in context:
>>>>>> http://www.nabble.com/Problem-using-KnowledgeAgent-tp22073944p22085204.html
>>>>>> Sent from the drools - user mailing list archive at Nabble.com.
>>>>>>
>>>>>> _______________________________________________
>>>>>> rules-users mailing list
>>>>>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>>
>>>>>>
>>>>> --
>>>>> Michael D Neale
>>>>> home: www.michaelneale.net <http://www.michaelneale.net>
>>>>> blog: michaelneale.blogspot.com <http://michaelneale.blogspot.com>
>>>>> _______________________________________________
>>>>> rules-users mailing list
>>>>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>>
>>>
>>> --
>>> Edson Tirelli
>>> JBoss Drools Core Development
>>> JBoss, a division of Red Hat @ www.jboss.com <http://www.jboss.com>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>
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