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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18475) MasterProcedureScheduler incorrectly passes null Procedure to table locking
Date Fri, 28 Jul 2017 21:02:01 GMT
Sean Busbey created HBASE-18475:
-----------------------------------

             Summary: MasterProcedureScheduler incorrectly passes null Procedure to table
locking
                 Key: HBASE-18475
                 URL: https://issues.apache.org/jira/browse/HBASE-18475
             Project: HBase
          Issue Type: Bug
          Components: proc-v2
            Reporter: Sean Busbey
            Assignee: Sean Busbey


Occasionally I get a series of these in tests during shutdown

{code}
2017-07-27 16:24:26,774 DEBUG [RpcServer.default.FPBQ.Fifo.handler=28,queue=1,port=37201]
master.MasterRpcServices(1011): Checking to see if procedure is done procId=506
2017-07-27 16:24:26,777 INFO  [main] client.HBaseAdmin$TableFuture(3591): Operation: CREATE,
Table Name: default:foo failed with foo
2017-07-27 16:24:26,782 INFO  [RpcServer.default.FPBQ.Fifo.handler=28,queue=1,port=37201]
master.HMaster$4(1755): Client=jenkins//172.26.21.67 create 'foo', {NAME => 'family_1',
VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false', KEEP_DELETED_CELLS => 'FALSE',
CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER',
MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BLOOMFILTER => 'ROW', CACHE_INDEX_ON_WRITE
=> 'false', IN_MEMORY => 'false', CACHE_BLOOMS_ON_WRITE => 'false', PREFETCH_BLOCKS_ON_OPEN
=> 'false', COMPRESSION => 'NONE', CACHE_DATA_IN_L1 => 'false', BLOCKCACHE =>
'true', BLOCKSIZE => '65536'}
2017-07-27 16:24:26,884 DEBUG [RpcServer.default.FPBQ.Fifo.handler=28,queue=1,port=37201]
procedure2.ProcedureExecutor(792): Stored pid=507, state=RUNNABLE:CREATE_TABLE_PRE_OPERATION;
CreateTableProcedure table=foo
2017-07-27 16:24:26,887 DEBUG [RpcServer.default.FPBQ.Fifo.handler=28,queue=1,port=37201]
master.MasterRpcServices(1011): Checking to see if procedure is done procId=507
2017-07-27 16:24:26,890 INFO  [ProcExecWrkr-5] procedure2.ProcedureExecutor(1261): Rolled
back pid=507, state=ROLLEDBACK, exception=org.apache.hadoop.hbase.TableExistsException via
master-create-table:org.apache.hadoop.hbase.TableExistsException: foo; CreateTableProcedure
table=foo exec-time=106msec
2017-07-27 16:24:26,890 WARN  [ProcExecWrkr-5] procedure2.ProcedureExecutor$WorkerThread(1668):
Worker terminating UNNATURALLY null
java.lang.NullPointerException
	at org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler.requireTableExclusiveLock(MasterProcedureScheduler.java:590)
	at org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler.access$300(MasterProcedureScheduler.java:106)
	at org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler$TableQueue.requireExclusiveLock(MasterProcedureScheduler.java:582)
	at org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler.doPoll(MasterProcedureScheduler.java:215)
	at org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler.dequeue(MasterProcedureScheduler.java:203)
	at org.apache.hadoop.hbase.procedure2.AbstractProcedureScheduler.poll(AbstractProcedureScheduler.java:145)
	at org.apache.hadoop.hbase.procedure2.AbstractProcedureScheduler.poll(AbstractProcedureScheduler.java:119)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1641)
2017-07-27 16:24:26,890 DEBUG [ProcExecWrkr-5] procedure2.ProcedureExecutor$WorkerThread(1670):
Worker terminated.
{code}

Eventually all the workers are done.



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