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https://issues.apache.org/jira/browse/HDFS-8450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14574411#comment-14574411
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Kai Zheng commented on HDFS-8450:
---------------------------------

Thanks Rakesh again for the update. More comments, would you help check one 
more time? Thanks!
1. {{ErasureCodingZoneManager}} mostly uses {{iip}} instead of {{src}} except 
{{createErasureCodingZone}}, so better to refactor it? Thus 
{{FSDirErasureCodingOp#createErasureCodingZone}} can also be simplified, using 
the utility {{getINodesInPath}}.

2. I don't quite like passing {{fsd}} and {{ecManager}}, instead just passing 
{{fsn}} is good enough. Please check other places.
{code}
+  private static ErasureCodingZone getErasureCodingZone(final FSDirectory fsd,
+      final INodesInPath iip, final ErasureCodingZoneManager ecManager)
+      throws IOException {
{code}
3. How about changing {{fsn.getECSchemaManager}} this time together?

Thanks again!

> Erasure Coding: Consolidate erasure coding zone related implementation into a 
> single class
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8450
>                 URL: https://issues.apache.org/jira/browse/HDFS-8450
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>         Attachments: HDFS-8450-FYI.patch, HDFS-8450-HDFS-7285-00.patch, 
> HDFS-8450-HDFS-7285-01.patch, HDFS-8450-HDFS-7285-02.patch, 
> HDFS-8450-HDFS-7285-03.patch, HDFS-8450-HDFS-7285-04.patch, 
> HDFS-8450-HDFS-7285-05.patch, HDFS-8450-HDFS-7285-07.patch, 
> HDFS-8450-HDFS-7285-08.patch
>
>
> The idea is to follow the same pattern suggested by HDFS-7416. It is good  to 
> consolidate all the erasure coding zone related implementations of 
> {{FSNamesystem}}. Here, proposing {{FSDirErasureCodingZoneOp}} class to have 
> functions to perform related erasure coding zone operations.



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