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From "Shashikant Banerjee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-972) Add support for configuring multiple OMs
Date Fri, 01 Feb 2019 09:25:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758135#comment-16758135

Shashikant Banerjee commented on HDDS-972:

Thanks [~hanishakoneru] for working on this. The patch looks good to me. Few minor comments:

1) Can we rename OMNodeInfo to OMNodeDetails similar to DataNodeDetails just to be consistent.

2) OzoneManager#startRatisServer starts the Raft server and Raft Client as well. Can we separate
these two?

3) If a raft request fails because of connection issues between the client and leader or communication
failure in between servers, ratis client actually will fail all the subsequent requests. In
such cases, the client needs to be closed and reinitialized again. This can be addressed in
a separate Jira as well.

4) Some unit tests need to be added.

> Add support for configuring multiple OMs
> ----------------------------------------
>                 Key: HDDS-972
>                 URL: https://issues.apache.org/jira/browse/HDDS-972
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>            Priority: Major
>         Attachments: HDDS-972.000.patch, HDDS-972.001.patch
> For OM HA, we would need to run multiple (atleast 3) OM services so that we can form
a replicated Ratis ring of OMs. This Jira aims to add support for configuring multiple OMs.

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