Details
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Bug
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Status: Closed
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Major
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Resolution: Cannot Reproduce
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None
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None
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None
Description
I got this in one of my test runs:
<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)
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.