[ https://issues.apache.org/jira/browse/FLINK-8040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gary Yao updated FLINK-8040: ---------------------------- Description: Test {{ResourceGuard#testCloseBlockIfAcquired()}} fails sporadically with {noformat} java.io.IOException: Resource guard was already closed. at org.apache.flink.util.ResourceGuard.acquireResource(ResourceGuard.java:72) at org.apache.flink.util.ResourceGuardTest.testCloseBlockIfAcquired(ResourceGuardTest.java:74) 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:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) at org.junit.rules.RunRules.evaluate(RunRules.java:20) {noformat} *How to reproduce* Run the test with a high number of iterations. To further provoke a failure, add {{Thread.sleep(100)}} before the following line {code} ResourceGuard.Lease lease_2 = resourceGuard.acquireResource(); {code} This will more likely result in {{closed}} being {{true}} at the time the 2nd lease is acquired, and and exception is thrown: {code} if (closed) { throw new IOException("Resource guard was already closed."); } {code} was: Test {{ResourceGuard#testCloseBlockIfAcquired()}} fails sporadically with {noformat} java.io.IOException: Resource guard was already closed. at org.apache.flink.util.ResourceGuard.acquireResource(ResourceGuard.java:72) at org.apache.flink.util.ResourceGuardTest.testCloseBlockIfAcquired(ResourceGuardTest.java:74) 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:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) at org.junit.rules.RunRules.evaluate(RunRules.java:20) {noformat} *How to reproduce* Run the test with a high number of iterations. To further provoke the failure, add {{Thread.sleep(100)}} before the following line {code} ResourceGuard.Lease lease_2 = resourceGuard.acquireResource(); {code} This will more likely result in {{closed}} being {{true}} at the time the 2nd lease is acquired, and and exception is thrown: {code} if (closed) { throw new IOException("Resource guard was already closed."); } {code} > Test instability ResourceGuard#testCloseBlockIfAcquired > ------------------------------------------------------- > > Key: FLINK-8040 > URL: https://issues.apache.org/jira/browse/FLINK-8040 > Project: Flink > Issue Type: Bug > Components: Core, Tests > Affects Versions: 1.4.0, 1.5.0 > Reporter: Gary Yao > Labels: test-stability > Fix For: 1.4.0, 1.5.0 > > > Test {{ResourceGuard#testCloseBlockIfAcquired()}} fails sporadically with > {noformat} > java.io.IOException: Resource guard was already closed. > at > org.apache.flink.util.ResourceGuard.acquireResource(ResourceGuard.java:72) > at > org.apache.flink.util.ResourceGuardTest.testCloseBlockIfAcquired(ResourceGuardTest.java:74) > 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:498) > at > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) > at > org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) > at > org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) > at > org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) > at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) > at org.junit.rules.RunRules.evaluate(RunRules.java:20) > {noformat} > *How to reproduce* > Run the test with a high number of iterations. > To further provoke a failure, add {{Thread.sleep(100)}} before the following > line > {code} > ResourceGuard.Lease lease_2 = resourceGuard.acquireResource(); > {code} > This will more likely result in {{closed}} being {{true}} at the time the 2nd > lease is acquired, and and exception is thrown: > {code} > if (closed) { > throw new IOException("Resource guard was already closed."); > } > {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029)