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https://issues.apache.org/jira/browse/HDFS-11716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000421#comment-16000421
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Weiwei Yang commented on HDFS-11716:
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Attached v1 patch, addressed following problems
# Removes container mapping in scm after container is successfully removed on
datanodes. So the container state is consistent before and after the delete
operation.
# Fixed the issue that commented
[here|https://issues.apache.org/jira/browse/HDFS-11716?focusedCommentId=15990152&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15990152]
after discussed with [~yuanbo] offline. We need this check no matter with or
without force flage.
# Added some more test cases in {{TestSCMCli}} to improve the coverage,
including : a) Verify if container exists in scm context; b) Verify
create-delete-create manner, it should succeed; c) Add a test to test deletion
of a non-exist container.
# Minor : refactor code in {{TestSCMCli}} to reuse some variable names.
[~anu], please kindly review.
> Ozone: SCM: CLI: Revisit delete container API
> ---------------------------------------------
>
> Key: HDFS-11716
> URL: https://issues.apache.org/jira/browse/HDFS-11716
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: HDFS-11716-HDFS-7240.001.patch
>
>
> Current delete container API seems can be possibly running into inconsistent
> state. SCM maintains a mapping of container to nodes, datanode maintains the
> actual container's data. When deletes a container, we need to make sure db is
> removed as well as the mapping in SCM also gets updated. What if the datanode
> failed to remove stuff for a container, do we update the mapping? We need to
> revisit the implementation and get these issues addressed. See more
> discussion
> [here|https://issues.apache.org/jira/browse/HDFS-11675?focusedCommentId=15987798&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15987798].
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