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https://issues.apache.org/jira/browse/HDFS-8059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395198#comment-14395198
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Zhe Zhang commented on HDFS-8059:
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Thanks Yi for the analysis.
bq. Ideally these two nums are the same for all striped blocks in a file
This is true. Moving these 2 numbers to the {{FileWithStripedBlocksFeature}}
sounds good to me.
BTW, in this phase these two numbers are even uniform in the entire EC zone.
But I think we should keep the EC policy per-file to avoid traversing name
space.
> 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
>
> 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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