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https://issues.apache.org/jira/browse/HDDS-277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556211#comment-16556211
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Xiaoyu Yao commented on HDDS-277:
---------------------------------
Thanks [~msingh] for the patch. Patch v2 looks good to me overall. Here are a
few comments:
CloseContainerEventHandler.java
Line 90: NIT: typo "FINIALIZE"
PipelineSelector.java
Line 342: can we move the pipeline.getLifeCycleState()==LifeCycleState.CLOSING
check before open container check? This way, the container close in most case
won't trigger the containerstateManager queries.
Line 343: should we call manager.closePipeline(pipeline) after this to clean up
pipeline from the in-memory pipeline map.
Line 351: unused can be removed.
Node2PipelineMap.java
Line 123: we should use computIfPresent here like below:
{code}dn2PipelineMap.computeIfPresent(dnId,
(k,v)->{v.remove(pipeline);return v;});
{code}
ContainerStateManager.java
Line 350: should we remove the openPipelineMap here and relies solely on the
PipelineManager#activePipelines?
RatisManagerImpl.java
Line 119: yes, I think we should destroy the raft ring. Can you file a follow
up JIRA on that?
> PipelineStateMachine should handle closure of pipelines in SCM
> --------------------------------------------------------------
>
> Key: HDDS-277
> URL: https://issues.apache.org/jira/browse/HDDS-277
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: SCM
> Affects Versions: 0.2.1
> Reporter: Mukul Kumar Singh
> Assignee: Mukul Kumar Singh
> Priority: Major
> Fix For: 0.2.1
>
> Attachments: HDDS-277.001.patch, HDDS-277.002.patch
>
>
> Currently the only visible state of pipelines in SCM is the open state. This
> jira adds capability to PipelineStateMachine to close a SCM pipeline and
> corresponding open containers on the pipeline. Once all the containers on the
> pipeline have been closed then the nodes of the pipeline will be released
> back to the free node pool
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