[jira] [Comment Edited] (HDDS-759) Create config settings for SCM and OM DB directories

["Arpit Agarwal (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDDS-759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16667927#comment-16667927 ] 

Arpit Agarwal edited comment on HDDS-759 at 10/30/18 12:33 AM:
---------------------------------------------------------------

I strongly dislike adding more config settings but in this case it is necessary to allow customization for performance reasons.




was (Author: arpitagarwal):
I strongly dislike adding more config settings but in this case it is necessary to allow customization for performance reasons.

For most production clusters, admins will want to carefully choose where they place OM and SCM metadata, similar to how they choose locations for NN metadata.

> Create config settings for SCM and OM DB directories
> ----------------------------------------------------
>
>                 Key: HDDS-759
>                 URL: https://issues.apache.org/jira/browse/HDDS-759
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>            Priority: Major
>         Attachments: HDDS-759.01.patch
>
>
> Currently SCM, OM and DN all use {{ozone.metadata.dirs}} for storing metadata.
> Looking more closely, it appears that SCM and OM have no option to choose separate locations. We should provide custom config settings.
> To avoid disruption, we can have them fallback to {{ozone.metadata.dirs}}.



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