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Posted to hdfs-issues@hadoop.apache.org by "Jitendra Nath Pandey (JIRA)" <ji...@apache.org> on 2018/11/14 16:47:00 UTC

[jira] [Commented] (HDDS-837) Persist originNodeId as part of .container file in datanode

    [ https://issues.apache.org/jira/browse/HDDS-837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16686848#comment-16686848 ] 

Jitendra Nath Pandey commented on HDDS-837:
-------------------------------------------

I think we should also add pipelineId along with the originNodeId. Even if it is not used actively, it will be useful for debugging or looking at the history of a container. In case of multi-raft, with multiple pipelines being served from the same DN, it will be helpful to be able to distinguish which container belongs to which pipeline.

> Persist originNodeId as part of .container file in datanode
> -----------------------------------------------------------
>
>                 Key: HDDS-837
>                 URL: https://issues.apache.org/jira/browse/HDDS-837
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>          Components: Ozone Datanode
>            Reporter: Nanda kumar
>            Assignee: Nanda kumar
>            Priority: Major
>
> To differentiate the replica of QUASI_CLOSED containers we need {{originNodeId}} field. With this field, we can uniquely identify a QUASI_CLOSED container replica. This will be needed when we want to CLOSE a QUASI_CLOSED container.
> This field will be set by the node where the container is created and stored as part of {{.container}} file and will be sent as part of ContainerReport to SCM.



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