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https://issues.apache.org/jira/browse/HDFS-11443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Kumar Singh updated HDFS-11443:
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Attachment: HDFS-11972-HDFS-7240.001.patch
> Ozone: Support SCM multiple instance for HA
> -------------------------------------------
>
> Key: HDFS-11443
> URL: https://issues.apache.org/jira/browse/HDFS-11443
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Fix For: HDFS-7240
>
> Attachments: HDFS-11972-HDFS-7240.001.patch
>
>
> SCM clients are capable of talking to multiple SCMs. This is achieved by
> reading the SCM config information or by one of the active SCM sending out
> the current set of machines that make up the RAFT Quorum.
> Currently we are not sending out the list of SCM machines dynamically, that
> is clients read the SCM info only from the config files. This hurts cluster
> level HA since if a node fails in the SCM RAFT ring, the operator should be
> able to add a new node for high availability without having to do anything
> else.
> This JIRA is to track that membership change send updates to all datanodes,
> so they all start talking to the newly added SCM node automatically.
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