Enis Soztutar created HBASE-10542: ------------------------------------- Summary: ConcurrentModificationException in TestHTraceHooks Key: HBASE-10542 URL: https://issues.apache.org/jira/browse/HBASE-10542 Project: HBase Issue Type: Bug Reporter: Enis Soztutar Fix For: 0.99.0
I got this in one of my test runs: {code} <error type="java.util.ConcurrentModificationException">java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894) at java.util.HashMap$KeyIterator.next(HashMap.java:928) at org.cloudera.htrace.TraceTree.<init>(TraceTree.java:48) at org.apache.hadoop.hbase.trace.TestHTraceHooks.testTraceCreateTable(TestHTraceHooks.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) 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) {code} It looks like TraceTree ctor, clones the spans collection, but iterates over the original argument, rather than cloned. I don't know enough of HTrace to fix it, so just reporting it here. [~eclark] FYI. -- This message was sent by Atlassian JIRA (v6.1.5#6160)