Dan Smith created GEODE-540: ------------------------------- Summary: Hang in OffHeapEvictionDUnitTest.testEachTaskSize Key: GEODE-540 URL: https://issues.apache.org/jira/browse/GEODE-540 Project: Geode Issue Type: Bug Reporter: Dan Smith
I hit this hang in a private build of cfbeaf241d6c77ad47ba062bb4268c88b798ce90 I did a thread dump on the running processes, and it looks like it stuck in OffHeapMemoryMonitor.stopMonitoring. {noformat} "Test worker" #10 prio=5 os_prio=0 tid=0x00007f8288dd1800 nid=0x7ba2 in Object.wait() [0x00007f827206d000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.Thread.join(Thread.java:1245) - locked <0x00000000d058f348> (a java.lang.Thread) at java.lang.Thread.join(Thread.java:1319) at com.gemstone.gemfire.internal.cache.control.OffHeapMemoryMonitor.stopMonitoring(OffHeapMemoryMonitor.java:132) - locked <0x00000000d058f1f8> (a com.gemstone.gemfire.internal.cache.control.OffHeapMemoryMonitor) at com.gemstone.gemfire.internal.cache.OffHeapEvictionDUnitTest.createCache(OffHeapEvictionDUnitTest.java:81) at com.gemstone.gemfire.internal.cache.EvictionDUnitDisabledTest.testEachTaskSize(EvictionDUnitDisabledTest.java:192) 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:497) at junit.framework.TestCase.runTest(TestCase.java:176) at junit.framework.TestCase.runBare(TestCase.java:141) at junit.framework.TestResult$1.protect(TestResult.java:122) at junit.framework.TestResult.runProtected(TestResult.java:142) at junit.framework.TestResult.run(TestResult.java:125) at junit.framework.TestCase.run(TestCase.java:129) at junit.framework.TestSuite.runTest(TestSuite.java:252) at junit.framework.TestSuite.run(TestSuite.java:247) "Thread-199 OffHeapMemoryListener" #840 daemon prio=10 os_prio=0 tid=0x00007f8234977800 nid=0x27e7 waiting for monitor entry [0x00007f81fb4f9000] java.lang.Thread.State: BLOCKED (on object monitor) at com.gemstone.gemfire.internal.cache.control.OffHeapMemoryMonitor.updateStateAndSendEvent(OffHeapMemoryMonitor.java:297) - waiting to lock <0x00000000d058a7b0> (a com.gemstone.gemfire.internal.cache.control.OffHeapMemoryMonitor) at com.gemstone.gemfire.internal.cache.control.OffHeapMemoryMonitor$OffHeapMemoryUsageListener.run(OffHeapMemoryMonitor.java:511) at java.lang.Thread.run(Thread.java:745) {noformat} To me, it looks like the problem is that stopMonitoring calls join on the memory monitor thread while synchronized. The memory monitor thread is then stuck trying to get that lock. -- This message was sent by Atlassian JIRA (v6.3.4#6332)