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Posted to issues@ozone.apache.org by "Shashikant Banerjee (Jira)" <ji...@apache.org> on 2021/03/08 07:42:00 UTC
[jira] [Commented] (HDDS-4896) Need a tool to upgrade current
non-HA SCM node to single node HA cluster
[ https://issues.apache.org/jira/browse/HDDS-4896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17297140#comment-17297140 ]
Shashikant Banerjee commented on HDDS-4896:
-------------------------------------------
The idea here is to add an optional config "ozone.scm.primordial.node.id". if the config is set, it will cause scm --init to only take effect on
the specific node and ignore scm --bootstrap cmd. Similarly, scm --init will be ignored on the non-primordial scm nodes.
If a cluster is upgraded from non-ratis to ratis based SCM, if the config is set , this will be the primary SCM node which will initialise the ratis
ring.
If the config is not set, scm --init needs to re-run for switching from non-ratis based SCM to ratis-based SCM on the primary node.
> Need a tool to upgrade current non-HA SCM node to single node HA cluster
> ------------------------------------------------------------------------
>
> Key: HDDS-4896
> URL: https://issues.apache.org/jira/browse/HDDS-4896
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Mukul Kumar Singh
> Assignee: Shashikant Banerjee
> Priority: Major
>
> Need a tool to upgrade current non-HA SCM node to single node HA cluster
> cc [~shashikant]
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