[jira] [Commented] (HBASE-21648) [rsgroup] hbase shell "move_servers_rsgroup" or "balance_rsgroup" will be failed when meet a split region.

["Toshihiro Suzuki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16730605#comment-16730605 ] 

Toshihiro Suzuki commented on HBASE-21648:
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Could you please add test for the issue to the patch?

> [rsgroup] hbase shell "move_servers_rsgroup" or "balance_rsgroup" will be failed when meet a split region.
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-21648
>                 URL: https://issues.apache.org/jira/browse/HBASE-21648
>             Project: HBase
>          Issue Type: Bug
>          Components: rsgroup
>    Affects Versions: 2.1.0
>            Reporter: xuming
>            Priority: Major
>         Attachments: HBASE-21648.v1.patch
>
>
> A  example：
> We have a table "A" which is in RSGroup "group1".  "bd806f94a53be74e65bd76e1e6e16e5a" is a region of A and is opened on RS "rs1".
> Two steps will repeat this bug: 
> step1: Split region bd806f94a53be74e65bd76e1e6e16e5a
> step2: Before the region is cleared by CatalogJanitor, client runs shell : move_server_rsgroup 'group2', ['rs1:60020']  or balance_rsgroup 'group1'
> Finally, client will have exceptions below and rest regions moving will be interrupted. 
> {noformat}
> ERROR: org.apache.hadoop.hbase.client.DoNotRetryRegionException: bd806f94a53be74e65bd76e1e6e16e5a is not OPEN
>     at org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure.checkOnline(AbstractStateMachineTableProcedure.java:189)
>     at org.apache.hadoop.hbase.master.assignment.MoveRegionProcedure.<init>(MoveRegionProcedure.java:71)
>     at org.apache.hadoop.hbase.master.assignment.AssignmentManager.createMoveRegionProcedure(AssignmentManager.java:755)
>     at org.apache.hadoop.hbase.master.assignment.AssignmentManager.move(AssignmentManager.java:560)
>     at org.apache.hadoop.hbase.rsgroup.RSGroupAdminServer.moveServers(RSGroupAdminServer.java:349)
>     at org.apache.hadoop.hbase.rsgroup.FGRSGroupAdminServer.moveServers(FGRSGroupAdminServer.java:119)
>     at org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint$RSGroupAdminServiceImpl.moveServers(RSGroupAdminEndpoint.java:209)
>     at org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos$RSGroupAdminService.callMethod(RSGroupAdminProtos.java:13870)
>     at org.apache.hadoop.hbase.master.MasterRpcServices.execMasterService(MasterRpcServices.java:813)
>     at org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
>     at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
>     at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
>     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
>     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
> For usage try 'help "move_servers_rsgroup”'
> ERROR: org.apache.hadoop.hbase.client.DoNotRetryRegionException: bd806f94a53be74e65bd76e1e6e16e5a is not OPEN
>     at org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure.checkOnline(AbstractStateMachineTableProcedure.java:189)
>     at org.apache.hadoop.hbase.master.assignment.MoveRegionProcedure.<init>(MoveRegionProcedure.java:71)
>     at org.apache.hadoop.hbase.master.assignment.AssignmentManager.createMoveRegionProcedure(AssignmentManager.java:755)
>     at org.apache.hadoop.hbase.master.assignment.AssignmentManager.moveAsync(AssignmentManager.java:565)
>     at org.apache.hadoop.hbase.rsgroup.RSGroupAdminServer.balanceRSGroup(RSGroupAdminServer.java:516)
>     at org.apache.hadoop.hbase.rsgroup.FGRSGroupAdminServer.balanceRSGroup(FGRSGroupAdminServer.java:164)
>     at org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint$RSGroupAdminServiceImpl.balanceRSGroup(RSGroupAdminEndpoint.java:296)
>     at org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos$RSGroupAdminService.callMethod(RSGroupAdminProtos.java:13890)
>     at org.apache.hadoop.hbase.master.MasterRpcServices.execMasterService(MasterRpcServices.java:813)
>     at org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
>     at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
>     at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
>     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
>     at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
> For usage try 'help "balance_rsgroup"'{noformat}
> Aflter splitting, this parent region will not be used anymore and will be cleared by CatalogJanitor in the future. So should we ignore moving it when doing move_server_rsgroup or balance_rsgroup?



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