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Posted to dev@hbase.apache.org by "Jeffrey Zhong (JIRA)" <ji...@apache.org> on 2013/08/17 20:36:47 UTC
[jira] [Created] (HBASE-9257) TestAsyncProcess#testFailAndSuccess
fails sometime due to a race condition
Jeffrey Zhong created HBASE-9257:
------------------------------------
Summary: TestAsyncProcess#testFailAndSuccess fails sometime due to a race condition
Key: HBASE-9257
URL: https://issues.apache.org/jira/browse/HBASE-9257
Project: HBase
Issue Type: Bug
Affects Versions: 0.95.2, 0.98.0
Reporter: Jeffrey Zhong
The test failed in our test env with the following stack. The reason is that we use the following pattern to check errors:
{code}
while (!ap.hasError()) {
Thread.sleep(1);
}
...
Assert.assertEquals(1, ap.getErrors().actions.size());
{code}
While in our product code, we set errors in different order
{code}
...
this.hasError.set(true);
errors.add(throwable, row, location);
...
{code}
Therefore, a client code may not get error actions when hasError is true due to thread scheduling.
{code}
Test Error Stack:
java.lang.AssertionError: expected:<1> but was:<0>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:743)
at org.junit.Assert.assertEquals(Assert.java:118)
at org.junit.Assert.assertEquals(Assert.java:555)
at org.junit.Assert.assertEquals(Assert.java:542)
at org.apache.hadoop.hbase.client.TestAsyncProcess.testFailAndSuccess(TestAsyncProcess.java:308)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
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.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runners.Suite.runChild(Suite.java:127)
at org.junit.runners.Suite.runChild(Suite.java:26)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{code}
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