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From "Balazs Meszaros (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15143) Procedure v2 - Web UI displaying queues
Date Mon, 13 Mar 2017 09:33:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15907074#comment-15907074
] 

Balazs Meszaros commented on HBASE-15143:
-----------------------------------------

Lock listing from shell:

{code}
hbase(main):001:0> list_locks
NAMESPACE(ns4)
Lock type: SHARED, count: 1

TABLE(ns4:table4)
Lock type: EXCLUSIVE, procedure: 1
Waiting procedures:
Lock type  Procedure Id
   SHARED  2
EXCLUSIVE  3
2 row(s)
{code}

Lock listing from web:
(see screenshot.png)

> Procedure v2 - Web UI displaying queues
> ---------------------------------------
>
>                 Key: HBASE-15143
>                 URL: https://issues.apache.org/jira/browse/HBASE-15143
>             Project: HBase
>          Issue Type: Sub-task
>          Components: proc-v2, UI
>            Reporter: Matteo Bertozzi
>            Assignee: Balazs Meszaros
>            Priority: Minor
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: HBASE-15143-BM-0001.patch, HBASE-15143-BM-0002.patch
>
>
> We can query MasterProcedureScheduler to display the various procedures and who is holding
table/region locks.
> Each procedure is in a TableQueue or ServerQueue, so it is easy to display the procedures
in its own group.



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