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https://issues.apache.org/jira/browse/HDFS-8059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14482620#comment-14482620
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Jing Zhao commented on HDFS-8059:
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bq. Otherwise we should use other ways to get these two information, maybe
again through the ECZone?
Yes. We should get this information when resolving the path. Therefore if we
really need to save memory in the future, we can even skip the two numbers in
the INodeFile level maybe.
> Erasure coding: move dataBlockNum and parityBlockNum from BlockInfoStriped to
> INodeFile
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-8059
> URL: https://issues.apache.org/jira/browse/HDFS-8059
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7285
> Reporter: Yi Liu
> Assignee: Yi Liu
> Attachments: HDFS-8059.001.patch
>
>
> Move {{dataBlockNum}} and {{parityBlockNum}} from BlockInfoStriped to
> INodeFile, and store them in {{FileWithStripedBlocksFeature}}.
> Ideally these two nums are the same for all striped blocks in a file, and
> store them in BlockInfoStriped will waste NN memory.
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