[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by Steven Hawkins (JIRA)
[ https://issues.jboss.org/browse/TEIID-3267?page=com.atlassian.jira.plugin... ]
Steven Hawkins commented on TEIID-3267:
---------------------------------------
There are no unit tests in the pull requests, can you create a unit test that highlights the issue?
> OPTION NOCACHE causes ConcurrentModificationException
> -----------------------------------------------------
>
> Key: TEIID-3267
> URL: https://issues.jboss.org/browse/TEIID-3267
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.4.3, 8.9
> Reporter: Hisanobu Okuda
> Assignee: Steven Hawkins
> Attachments: test.csv, test.vdb
>
>
> I have the following virtual procedure.
> {code}
> CREATE VIRTUAL PROCEDURE
> BEGIN
> DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
> EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
> END
> {code}
> When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
> {code}
> 17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
> at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
> {code}
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[JBoss JIRA] (TEIID-3260) Create custom metadata repository that uses Modeshape
by Van Halbert (JIRA)
[ https://issues.jboss.org/browse/TEIID-3260?page=com.atlassian.jira.plugin... ]
Van Halbert commented on TEIID-3260:
------------------------------------
With Komodo being a ways out, I can see the benefit of an initial (but simple) implementation that retrieves the the VDB from storage and deploys it. This would work great in the process flow of moving a VDB thru its life cycle and making it available to access without having to use the admin console to install it. Especially, since Teiid Designer isn't meant for product deployment.
Now, when Komodo is available, it could be updated to do deployments in a different manner.
> Create custom metadata repository that uses Modeshape
> -----------------------------------------------------
>
> Key: TEIID-3260
> URL: https://issues.jboss.org/browse/TEIID-3260
> Project: Teiid
> Issue Type: Feature Request
> Components: Server
> Affects Versions: 8.10
> Reporter: Van Halbert
> Assignee: Van Halbert
>
> Create a custom metadata repository implementation that uses ModeShape as the repository for obtaining the VDB metadata for deployment.
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[JBoss JIRA] (TEIID-3260) Create custom metadata repository that uses Modeshape
by Ramesh Reddy (JIRA)
[ https://issues.jboss.org/browse/TEIID-3260?page=com.atlassian.jira.plugin... ]
Ramesh Reddy commented on TEIID-3260:
-------------------------------------
The integration point with Modeshape is more involved in terms defining a node structure and update framework etc, which Komodo framework is also pursuing. So, using this simple quick start is not right approach. I would advise no work done on this right now, when Komodo work solidifies little more then it can be visited.
> Create custom metadata repository that uses Modeshape
> -----------------------------------------------------
>
> Key: TEIID-3260
> URL: https://issues.jboss.org/browse/TEIID-3260
> Project: Teiid
> Issue Type: Feature Request
> Components: Server
> Affects Versions: 8.10
> Reporter: Van Halbert
> Assignee: Van Halbert
>
> Create a custom metadata repository implementation that uses ModeShape as the repository for obtaining the VDB metadata for deployment.
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[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by RH Bugzilla Integration (JIRA)
[ https://issues.jboss.org/browse/TEIID-3267?page=com.atlassian.jira.plugin... ]
RH Bugzilla Integration updated TEIID-3267:
-------------------------------------------
Bugzilla Update: Perform
Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1175653
> OPTION NOCACHE causes ConcurrentModificationException
> -----------------------------------------------------
>
> Key: TEIID-3267
> URL: https://issues.jboss.org/browse/TEIID-3267
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.4.3, 8.9
> Reporter: Hisanobu Okuda
> Assignee: Steven Hawkins
> Attachments: test.csv, test.vdb
>
>
> I have the following virtual procedure.
> {code}
> CREATE VIRTUAL PROCEDURE
> BEGIN
> DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
> EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
> END
> {code}
> When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
> {code}
> 17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
> at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
> {code}
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[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by Hisanobu Okuda (JIRA)
[ https://issues.jboss.org/browse/TEIID-3267?page=com.atlassian.jira.plugin... ]
Hisanobu Okuda updated TEIID-3267:
----------------------------------
Attachment: test.vdb
> OPTION NOCACHE causes ConcurrentModificationException
> -----------------------------------------------------
>
> Key: TEIID-3267
> URL: https://issues.jboss.org/browse/TEIID-3267
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.4.3, 8.9
> Reporter: Hisanobu Okuda
> Assignee: Steven Hawkins
> Attachments: test.csv, test.vdb
>
>
> I have the following virtual procedure.
> {code}
> CREATE VIRTUAL PROCEDURE
> BEGIN
> DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
> EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
> END
> {code}
> When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
> {code}
> 17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
> at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
> {code}
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[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by Hisanobu Okuda (JIRA)
[ https://issues.jboss.org/browse/TEIID-3267?page=com.atlassian.jira.plugin... ]
Hisanobu Okuda updated TEIID-3267:
----------------------------------
Attachment: test.csv
> OPTION NOCACHE causes ConcurrentModificationException
> -----------------------------------------------------
>
> Key: TEIID-3267
> URL: https://issues.jboss.org/browse/TEIID-3267
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.4.3, 8.9
> Reporter: Hisanobu Okuda
> Assignee: Steven Hawkins
> Attachments: test.csv, test.vdb
>
>
> I have the following virtual procedure.
> {code}
> CREATE VIRTUAL PROCEDURE
> BEGIN
> DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
> EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
> END
> {code}
> When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
> {code}
> 17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
> at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
> {code}
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[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by Hisanobu Okuda (JIRA)
[ https://issues.jboss.org/browse/TEIID-3267?page=com.atlassian.jira.plugin... ]
Hisanobu Okuda commented on TEIID-3267:
---------------------------------------
pull request
https://github.com/teiid/teiid/pull/381
> OPTION NOCACHE causes ConcurrentModificationException
> -----------------------------------------------------
>
> Key: TEIID-3267
> URL: https://issues.jboss.org/browse/TEIID-3267
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.4.3, 8.9
> Reporter: Hisanobu Okuda
> Assignee: Steven Hawkins
>
> I have the following virtual procedure.
> {code}
> CREATE VIRTUAL PROCEDURE
> BEGIN
> DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
> EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
> END
> {code}
> When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
> {code}
> 17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
> at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
> {code}
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[JBoss JIRA] (TEIID-3267) OPTION NOCACHE causes ConcurrentModificationException
by Hisanobu Okuda (JIRA)
Hisanobu Okuda created TEIID-3267:
-------------------------------------
Summary: OPTION NOCACHE causes ConcurrentModificationException
Key: TEIID-3267
URL: https://issues.jboss.org/browse/TEIID-3267
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 8.9, 8.4.3
Reporter: Hisanobu Okuda
Assignee: Steven Hawkins
I have the following virtual procedure.
{code}
CREATE VIRTUAL PROCEDURE
BEGIN
DECLARE string VARIABLES.strSql = 'select v1.id, v2.ccc2 from vvv1.vvv as v1, vvv2.vvv as v2 where v1.id=v2.id option nocache v1';
EXECUTE IMMEDIATE VARIABLES.strSql AS id string, name string;
END
{code}
When I specify no argument for 'option nocache', it works. But, when I specify a view name as an argument for 'option nocache', it throws ConcurrentModificationException.
{code}
17:34:04,285 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue0) TEIID30019 Unexpected exception for request nSVB2nm4gO3M.0: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) [rt.jar:1.7.0_45]
at java.util.ArrayList$Itr.next(ArrayList.java:831) [rt.jar:1.7.0_45]
at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:609) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.addNestedCommand(RelationalPlanner.java:1173) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.buildTree(RelationalPlanner.java:1071) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:904) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.createQueryPlan(RelationalPlanner.java:863) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.generatePlan(RelationalPlanner.java:619) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:226) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:159) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.proc.ExecDynamicSqlInstruction.process(ExecDynamicSqlInstruction.java:186) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:356) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.proc.ProcedurePlan.nextBatchDirect(ProcedurePlan.java:283) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:257) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:118) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:146) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:149) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:112) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:157) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:139) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:435) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:320) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:248) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:269) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.4.1-redhat-7.hokuda.jar:8.4.1-redhat-7]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
{code}
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