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https://issues.apache.org/jira/browse/HBASE-20690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623623#comment-16623623
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Guangxu Cheng commented on HBASE-20690:
---------------------------------------
These error logs generated when creating table.
The related code as below:
{code}
getMaster().getMasterCoprocessorHost().preCreateTable(tableDescriptor,
newRegions);
LOG.info(getClientIdAuditPrefix() + " create " + tableDescriptor);
ProcedurePrepareLatch latch =
ProcedurePrepareLatch.createBlockingLatch();
submitProcedure(new CreateTableProcedure(
procedureExecutor.getEnvironment(), tableDescriptor, newRegions,
latch));
latch.await();
getMaster().getMasterCoprocessorHost().postCreateTable(tableDescriptor,
newRegions);
{code}
>From the code, we can see that there is a race between
>{{CreateTableProcedure}} and {{postCreateTable}}.
When {{postCreateTable}} is executing, if {{CreateTableProcedure}} has not been
executed yet, {{TableStateNotFoundException}} will be thrown.Otherwise, regions
will be reassigned according to group information.
In fact, we only need to add the table name to the group information before
creating the table.
> Moving table to target rsgroup needs to handle TableStateNotFoundException
> --------------------------------------------------------------------------
>
> Key: HBASE-20690
> URL: https://issues.apache.org/jira/browse/HBASE-20690
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Priority: Major
>
> This is related code:
> {code}
> if (targetGroup != null) {
> for (TableName table: tables) {
> if (master.getAssignmentManager().isTableDisabled(table)) {
> LOG.debug("Skipping move regions because the table" + table + "
> is disabled.");
> continue;
> }
> {code}
> In a stack trace [~rmani] showed me:
> {code}
> 2018-06-06 07:10:44,893 ERROR
> [RpcServer.default.FPBQ.Fifo.handler=29,queue=2,port=20000]
> master.TableStateManager: Unable to get table demo:tbl1 state
> org.apache.hadoop.hbase.master.TableStateManager$TableStateNotFoundException:
> demo:tbl1
> at
> org.apache.hadoop.hbase.master.TableStateManager.getTableState(TableStateManager.java:193)
> at
> org.apache.hadoop.hbase.master.TableStateManager.isTableState(TableStateManager.java:143)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.isTableDisabled(AssignmentManager.java:346)
> at
> org.apache.hadoop.hbase.rsgroup.RSGroupAdminServer.moveTables(RSGroupAdminServer.java:407)
> at
> org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint.assignTableToGroup(RSGroupAdminEndpoint.java:447)
> at
> org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint.postCreateTable(RSGroupAdminEndpoint.java:470)
> at
> org.apache.hadoop.hbase.master.MasterCoprocessorHost$12.call(MasterCoprocessorHost.java:334)
> at
> org.apache.hadoop.hbase.master.MasterCoprocessorHost$12.call(MasterCoprocessorHost.java:331)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost$ObserverOperationWithoutResult.callObserver(CoprocessorHost.java:540)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost.execOperation(CoprocessorHost.java:614)
> at
> org.apache.hadoop.hbase.master.MasterCoprocessorHost.postCreateTable(MasterCoprocessorHost.java:331)
> at org.apache.hadoop.hbase.master.HMaster$3.run(HMaster.java:1768)
> at
> org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil.submitProcedure(MasterProcedureUtil.java:131)
> at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1750)
> at
> org.apache.hadoop.hbase.master.MasterRpcServices.createTable(MasterRpcServices.java:593)
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:131)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
> {code}
> The logic should take potential TableStateNotFoundException into account.
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