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https://issues.apache.org/jira/browse/HDDS-737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16675615#comment-16675615
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Nanda kumar commented on HDDS-737:
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[~linyiqun], thanks for the review.
bq. I prefer to add additional try-catch for thread.sleep and get
InterruptedException.
Good idea. Will address it in the next patch.
bq. Can we have a new unit test for the incremental container report?
I have added {{TestCloseContainerCommandHandler}} in HDDS-801 which tests
whether ICR is properly triggered.
HDDS-801 also introduces {{OzoneContainer#updateContainerState}} call which
triggers ICR, there is a bit of restructuring of code in the way we trigger ICR
in HDDS-801.
> Introduce Incremental Container Report
> --------------------------------------
>
> Key: HDDS-737
> URL: https://issues.apache.org/jira/browse/HDDS-737
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: Ozone Datanode, SCM
> Reporter: Nanda kumar
> Assignee: Nanda kumar
> Priority: Major
> Attachments: HDDS-737.000.patch
>
>
> We will use Incremental Container Report (ICR) to immediately inform SCM when
> there is some state change to the container in datanode. This will make sure
> that SCM is updated as soon as the state of a container changes and doesn’t
> have to wait for full container report.
> *When do we send ICR?*
> * When a container replica state changes from open/closing to closed
> * When a container replica state changes from open/closing to quasi closed
> * When a container replica state changes from quasi closed to closed
> * When a container replica is deleted in datanode
> * When a container replica is copied from another datanode
> * When a container replica is discovered to be corrupted
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