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https://issues.apache.org/jira/browse/HDDS-161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16511573#comment-16511573
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Anu Engineer commented on HDDS-161:
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+1, on this change. I will commit this as soon as we can fix some of these
unused imports in the following files.
{noformat}
XceiverServer.java
XceiverServerGrpc.java
XceiverServerRatis.java
XceiverServerSPI.java{noformat}
> Add functionality to queue ContainerClose command from SCM Hearbeat Reposnse
> to Ratis
> -------------------------------------------------------------------------------------
>
> Key: HDDS-161
> URL: https://issues.apache.org/jira/browse/HDDS-161
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Datanode, SCM
> Reporter: Shashikant Banerjee
> Assignee: Shashikant Banerjee
> Priority: Major
> Fix For: 0.2.1
>
> Attachments: HDDS-161.00.patch, HDDS-161.01.patch
>
>
> When a container needs to be closed at the Datanode, SCM will queue a close
> command which will be encoded as a part of Heartbeat Response to the
> Datanode. This command will be picked up from the response at the Datanode
> which will then be submitted to the XceiverServer to process the close
> command. This will just queue a ContainerCloseCommand to the Ratis, where the
> leader would start the transaction while the followers will reject the
> closeContainer request.
> While handling the close container inside the Datanode, we need to ensure all
> the ongoing chunkWrites finish before close can proceed through. It should
> also reject any any incoming I/Os in between. This will be handled as a part
> of separate jira.
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