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Posted to dev@hbase.apache.org by "Sean Busbey (JIRA)" <ji...@apache.org> on 2018/12/10 23:56:01 UTC

[jira] [Resolved] (HBASE-21283) Add new shell command 'rit' for listing regions in transition

     [ https://issues.apache.org/jira/browse/HBASE-21283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Busbey resolved HBASE-21283.
---------------------------------
      Resolution: Fixed
    Release Note: 
<!-- markdown -->

The HBase `shell` now includes a command to list regions currently in transition.

```
HBase Shell
Use "help" to get list of supported commands.
Use "exit" to quit this interactive shell.
Version 1.5.0-SNAPSHOT, r9bb6d2fa8b760f16cd046657240ebd4ad91cb6de, Mon Oct  8 21:05:50 UTC 2018

hbase(main):001:0> help 'rit'
List all regions in transition.
Examples:
  hbase> rit

hbase(main):002:0> create ...
0 row(s) in 2.5150 seconds
=> Hbase::Table - IntegrationTestBigLinkedList

hbase(main):003:0> rit
0 row(s) in 0.0340 seconds

hbase(main):004:0> unassign '56f0c38c81ae453d19906ce156a2d6a1'
0 row(s) in 0.0540 seconds

hbase(main):005:0> rit 
IntegrationTestBigLinkedList,L\xCC\xCC\xCC\xCC\xCC\xCC\xCB,1539117183224.56f0c38c81ae453d19906ce156a2d6a1. state=PENDING_CLOSE, ts=Tue Oct 09 20:33:34 UTC 2018 (0s ago), server=null                                                                                                                                                                                   
1 row(s) in 0.0170 seconds
```

> Add new shell command 'rit' for listing regions in transition
> -------------------------------------------------------------
>
>                 Key: HBASE-21283
>                 URL: https://issues.apache.org/jira/browse/HBASE-21283
>             Project: HBase
>          Issue Type: Improvement
>          Components: Operability, shell
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 3.0.0, 1.5.0, 2.2.0
>
>         Attachments: HBASE-21283-branch-1.patch, HBASE-21283-branch-1.patch, HBASE-21283-branch-1.patch, HBASE-21283.patch, HBASE-21283.patch, HBASE-21283.patch
>
>
> The 'status' shell command shows regions in transition but sometimes an operator may want to retrieve a simple list of regions in transition. Here's a patch that adds a new 'rit' command to the TOOLS group that does just that. 
> No test, because it seems hard to mock RITs from the ruby test code, but I have run TestShell and it passes, so the command is verified to meet minimum requirements, like help text, and manually verified with branch-1 (shell in branch-2 and up doesn't return until TransitRegionProcedure has completed so by that time no RIT):
> {noformat}
> HBase Shell
> Use "help" to get list of supported commands.
> Use "exit" to quit this interactive shell.
> Version 1.5.0-SNAPSHOT, r9bb6d2fa8b760f16cd046657240ebd4ad91cb6de, Mon Oct  8 21:05:50 UTC 2018
> hbase(main):001:0> help 'rit'
> List all regions in transition.
> Examples:
>   hbase> rit
> hbase(main):002:0> create ...
> 0 row(s) in 2.5150 seconds
> => Hbase::Table - IntegrationTestBigLinkedList
> hbase(main):003:0> rit
> 0 row(s) in 0.0340 seconds
> hbase(main):004:0> unassign '56f0c38c81ae453d19906ce156a2d6a1'
> 0 row(s) in 0.0540 seconds
> hbase(main):005:0> rit 
> IntegrationTestBigLinkedList,L\xCC\xCC\xCC\xCC\xCC\xCC\xCB,1539117183224.56f0c38c81ae453d19906ce156a2d6a1. state=PENDING_CLOSE, ts=Tue Oct 09 20:33:34 UTC 2018 (0s ago), server=null                                                                                                                                                                                   
> 1 row(s) in 0.0170 seconds
> {noformat}



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