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From "Nanda kumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12741) ADD support for KSM --createObjectStore command
Date Tue, 05 Dec 2017 18:23:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16278991#comment-16278991

Nanda kumar commented on HDFS-12741:

Thanks [~shashikant] for updating the patch.
In {{TestKeySpaceManager#testKSMInitializationFailure}} we should not modify {{KSMStorage}}
of {{MiniOzoneCluster}} instance that is shared between test cases. Junit executes the testcases
in parallel and randomly, so after the execution of testKSMInitializationFailure the {{MiniOzoneCluster}}
instance will be stopped causing the later testcases to fail. Instead, we can try to create
new KeySpaceManager instance with wrong/different cluster and SCM Id and then try to start

> ADD support for KSM --createObjectStore command
> -----------------------------------------------
>                 Key: HDFS-12741
>                 URL: https://issues.apache.org/jira/browse/HDFS-12741
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: HDFS-7240
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>             Fix For: HDFS-7240
>         Attachments: HDFS-12741-HDFS-7240.001.patch, HDFS-12741-HDFS-7240.002.patch,
> KSM --createObjectStore command reads the ozone configuration information and creates
the KSM version file and reads the SCM version file from the SCM specified.
> The SCM version file is stored in the KSM metadata directory and before communicating
with an SCM KSM verifies that it is communicating with an SCM where the relationship has been
established via createObjectStore command.

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