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https://issues.apache.org/jira/browse/HBASE-20657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16558974#comment-16558974
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Hadoop QA commented on HBASE-20657:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  3s{color} 
| {color:red} HBASE-20657 does not apply to master. Rebase required? Wrong 
Branch? See https://yetus.apache.org/documentation/0.7.0/precommit-patchnames 
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HBASE-20657 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12933276/HBASE-20657-4-master.patch
 |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13819/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


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> Retrying RPC call for ModifyTableProcedure may get stuck
> --------------------------------------------------------
>
>                 Key: HBASE-20657
>                 URL: https://issues.apache.org/jira/browse/HBASE-20657
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, proc-v2
>    Affects Versions: 2.0.0
>            Reporter: Sergey Soldatov
>            Assignee: stack
>            Priority: Critical
>             Fix For: 3.0.0, 2.0.2
>
>         Attachments: HBASE-20657-1-branch-2.patch, 
> HBASE-20657-2-branch-2.patch, HBASE-20657-3-branch-2.patch, 
> HBASE-20657-4-master.patch, HBASE-20657-testcase-branch2.patch
>
>
> Env: 2 masters, 1 RS. 
> Steps to reproduce: Active master is killed while ModifyTableProcedure is 
> executed. 
> If the table has enough regions it may come that when the secondary master 
> get active some of the regions may be closed, so once client retries the call 
> to the new active master, a new ModifyTableProcedure is created and get stuck 
> during MODIFY_TABLE_REOPEN_ALL_REGIONS state handling. That happens because:
> 1. When we are retrying from client side, we call modifyTableAsync which 
> create a procedure with a new nonce key:
> {noformat}
>          ModifyTableRequest request = 
> RequestConverter.buildModifyTableRequest(
>             td.getTableName(), td, ng.getNonceGroup(), ng.newNonce());
> {noformat}
>  So on the server side, it's considered as a new procedure and starts 
> executing immediately.
> 2. When we are processing  MODIFY_TABLE_REOPEN_ALL_REGIONS we create 
> MoveRegionProcedure for each region, but it checks whether the region is 
> online (and it's not), so it fails immediately, forcing the procedure to 
> restart.
> [[email protected]] saw a similar case when two concurrent ModifyTable 
> procedures were running and got stuck in the similar way. 



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