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From "Robert Kanter (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2131) Add a way to nuke the RMStateStore
Date Wed, 02 Jul 2014 01:51:24 GMT

     [ https://issues.apache.org/jira/browse/YARN-2131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Kanter updated YARN-2131:
--------------------------------

    Attachment: YARN-2131.patch

The patch adds a {{deleteStore()}} method to RMStateStore and implementations for the ZKRMStateStore
and the FileSystemRMStateStore; this gets called when you run {{yarn resourcemanager -format}}.

I also added a unit test and verified that it works in a cluster with the ZKRMStateStore and
also the FileSystemRMStateStore with both the local FS and HDFS.

> Add a way to nuke the RMStateStore
> ----------------------------------
>
>                 Key: YARN-2131
>                 URL: https://issues.apache.org/jira/browse/YARN-2131
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>         Attachments: YARN-2131.patch
>
>
> There are cases when we don't want to recover past applications, but recover applications
going forward. To do this, one has to clear the store. Today, there is no easy way to do this
and users should understand how each store works.



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