[CALCITE-213] Intermittent high-CPU hang in JdbcTest.testSelfJoinCount

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: github-import
• Assignee: Unassigned
• Reporter: GitHub Import
• Created: 18/Jun/14 08:38
• Updated: 18/Jun/14 08:38

Description

Stack trace:

```
"pool-1-thread-8" (#17 | FLINK-17) prio=5 os_prio=0 tid=0x00007fb89c003000 nid=0x2407 runnable [0x00007fb8d9e07000]
java.lang.Thread.State: RUNNABLE
at Baz$6$1.moveNext(Unknown Source)
at net.hydromatic.linq4j.EnumerableDefaults.aggregate(EnumerableDefaults.java:84)
at net.hydromatic.linq4j.DefaultEnumerable.aggregate(DefaultEnumerable.java:88)
at Baz.bind(Unknown Source)
at net.hydromatic.optiq.jdbc.OptiqPrepare$PrepareResult.getEnumerable(OptiqPrepare.java:252)
at net.hydromatic.optiq.jdbc.OptiqPrepare$PrepareResult.enumerator(OptiqPrepare.java:262)
at net.hydromatic.optiq.jdbc.OptiqPrepare$PrepareResult.createCursor(OptiqPrepare.java:230)
at net.hydromatic.optiq.jdbc.MetaImpl.createCursor(MetaImpl.java:597)
at net.hydromatic.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:162)
at net.hydromatic.optiq.jdbc.OptiqResultSet.execute(OptiqResultSet.java:52)
at net.hydromatic.optiq.jdbc.OptiqResultSet.execute(OptiqResultSet.java:29)
at net.hydromatic.avatica.AvaticaConnection.executeQueryInternal(AvaticaConnection.java:404)
at net.hydromatic.avatica.AvaticaStatement.executeQueryInternal(AvaticaStatement.java:350)
at net.hydromatic.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:78)
at net.hydromatic.optiq.test.OptiqAssert.assertQuery(OptiqAssert.java:320)
at net.hydromatic.optiq.test.OptiqAssert$AssertQuery.returns(OptiqAssert.java:781)
at net.hydromatic.optiq.test.OptiqAssert$AssertQuery.returns(OptiqAssert.java:772)
at net.hydromatic.optiq.test.JdbcTest.testSelfJoinCount(JdbcTest.java:1914)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:258)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:744)
```

---------------- Imported from GitHub ----------------
Url: https://github.com/julianhyde/optiq/issues/213
Created by: julianhyde
Labels: bug,
Created at: Fri Mar 28 19:53:23 CET 2014
State: open