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https://issues.apache.org/jira/browse/HDDS-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575270#comment-16575270
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Xiaoyu Yao commented on HDDS-298:
---------------------------------
Thanks [~ajayydv] for working on this. The patch looks good to me overall. I
just have few minor comments below:
*ContainerMapping.java*
Line 79: NIT: CLOSE->CLOSED, Close-pipeline- => Closed-pipeline-
Line 206-208: NIT: unrelated change
Line 214 getContainerReplica() returns a immutable set, we can avoid allocate a
new ArrayList for the datanodes.
Line 215-217: Can we fold this with a new API
containerStateManager#getContainerReplica() to avoid expose the complete
containerStateMap here?
Line 221: can we define a more specific error code here?
Line 224: should we use a different replication type here for closed containers?
> Implement SCMClientProtocolServer.getContainerWithPipeline for closed
> containers
> --------------------------------------------------------------------------------
>
> Key: HDDS-298
> URL: https://issues.apache.org/jira/browse/HDDS-298
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: SCM
> Reporter: Elek, Marton
> Assignee: Ajay Kumar
> Priority: Critical
> Fix For: 0.2.1
>
> Attachments: HDDS-298.00.patch, HDDS-298.01.patch, HDDS-298.02.patch,
> HDDS-298.03.patch, HDDS-298.04.patch, HDDS-298.05.patch
>
>
> As [~ljain] mentioned during the review of HDDS-245
> SCMClientProtocolServer.getContainerWithPipeline doesn't return with good
> data for closed containers. For closed containers we are maintaining the
> datanodes for a containerId in the ContainerStateMap.contReplicaMap. We need
> to create fake Pipeline object on-request and return it for the client to
> locate the right datanodes to download data.
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