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Hudson commented on HBASE-7235: ------------------------------- Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #279 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/279/]) HBASE-7235 TestMasterObserver is flaky (Revision 1415005) Result = FAILURE enis : Files : * /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestMasterObserver.java > TestMasterObserver is flaky > --------------------------- > > Key: HBASE-7235 > URL: https://issues.apache.org/jira/browse/HBASE-7235 > Project: HBase > Issue Type: Bug > Components: Coprocessors, master, test > Affects Versions: 0.96.0, 0.94.4 > Reporter: Enis Soztutar > Assignee: Enis Soztutar > Fix For: 0.96.0, 0.94.4 > > Attachments: hbase-7235_v1.patch > > > TestMasterObserver failed on windows builds at least a couple of times, > although this is not windows specific. > Upon further inspection, it seems that we are affected by the race condition > for the table operations. > The handling of modify table occurs in its dedicated executor, > MASTER_TABLE_OPERATIONS, and happens in async, although the handling of > add/delete/modify columns are handled in the IPC handler thread. When we do > not wait for the first modify table to finish, subsequent changes from the > add/modify column operations are overriden by the earlier modify table > executor. > {code} > at > org.apache.hadoop.hbase.master.handler.TableEventHandler.hasColumnFamily(TableEventHandler.java:182) > at > org.apache.hadoop.hbase.master.handler.TableDeleteFamilyHandler.<init>(TableDeleteFamilyHandler.java:42) > at > org.apache.hadoop.hbase.master.HMaster.deleteColumn(HMaster.java:1255) > 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.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364) > at > org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1400) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) > at java.lang.reflect.Constructor.newInstance(Constructor.java:513) > at > org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:96) > at > org.apache.hadoop.hbase.client.HBaseAdmin.deleteColumn(HBaseAdmin.java:1024) > at > org.apache.hadoop.hbase.coprocessor.TestMasterObserver.testTableOperations(TestMasterObserver.java:616) > {code} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira