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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14017) Procedure v2 - MasterProcedureQueue fix concurrency issue on table queue deletion
Date Fri, 03 Jul 2015 00:42:04 GMT
Matteo Bertozzi created HBASE-14017:
---------------------------------------

             Summary: Procedure v2 - MasterProcedureQueue fix concurrency issue on table queue
deletion
                 Key: HBASE-14017
                 URL: https://issues.apache.org/jira/browse/HBASE-14017
             Project: HBase
          Issue Type: Sub-task
          Components: proc-v2
    Affects Versions: 1.1.0.1, 2.0.0, 1.2.0
            Reporter: Matteo Bertozzi
            Assignee: Matteo Bertozzi
            Priority: Blocker
             Fix For: 2.0.0, 1.2.0, 1.1.2


[~syuanjiang] found a concurrecy issue in the procedure queue delete where we don't have an
exclusive lock before deleting the table
{noformat}
Thread 1: Create table is running - tryWrite() acquire the lock, before set wlock=true;
Thread 2: markTableAsDeleted see the queue empty and wlock= false
Thread 1: set wlock=true; too late
Thread 2: delete the queue
Thread 1: never able to release the lock
{noformat}



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