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https://issues.apache.org/jira/browse/HDDS-6885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17554280#comment-17554280
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Ethan Rose edited comment on HDDS-6885 at 6/14/22 8:30 PM:
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To finalize HDDS-6360 (one rocksDB per volume) without closing containers,
HDDS-6887 will need to be implemented.
was (Author: erose):
To finalize HDDS-6360 (one rocksDB per volume) without closing containers,
HDDS-6886 will need to be implemented.
> Allow HDDS layout features to specify their finalization requirements
> ---------------------------------------------------------------------
>
> Key: HDDS-6885
> URL: https://issues.apache.org/jira/browse/HDDS-6885
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: Ozone Datanode, SCM
> Reporter: Ethan Rose
> Assignee: Ethan Rose
> Priority: Major
>
> Add a field to each HDDS layout feature object that allows it to specify the
> requirements SCM must enforce when it needs to be finalized. Currently there
> will be two options:
> 1. Close all containers: The current way finalization works, which involves
> closing all pipelines and containers and moving datanodes to a readonly state
> until they finalize.
> 2. None: No special requirements. The layout feature can be finalized while
> datanodes are serving reads and writes. Individual datanodes must still be
> finalized before they can use new layout features.
> Another requirement could be the number of datanodes that must finalize
> before SCM declares finalization as complete. A minimum number may be
> configured by default, but some features like erasure coding may have a
> specific number, like 5, needed before the feature can be declared finalized.
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