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From "Shashikant Banerjee (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-12741) ADD support for KSM --createObjectStore command
Date Mon, 27 Nov 2017 14:42:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16266882#comment-16266882
] 

Shashikant Banerjee edited comment on HDFS-12741 at 11/27/17 2:41 PM:
----------------------------------------------------------------------

Thanks [~linyiqun], for the review comments. Patch v2 addresses the same.
Please have a look.

KSM Version file is actually located inside the path  "ozone_metadir_dir/ksm/" The function
to read
the ozone.metadata.dir config path is getScmMetaDir() which is misleading i guess. KSM doesn't
store the version file inside SCM MetaData Directory.


was (Author: shashikant):
Thanks [~linyiqun], for the review comments. Patch v2 addresses the same.
Please have a look.

KSM Version file is actually located inside the path  "ozone_metadir_dir/ksm/" The function
to read
the ozone.metadata.dir path is getScmMetaDir() which is misleading i guess. KSM doesn't store
the version file inside SCm MetaData Directory.

> 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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