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https://issues.apache.org/jira/browse/HDFS-7648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14319541#comment-14319541
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Rakesh R commented on HDFS-7648:
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bq. If there are a bunch of files in the wrong location, we want that "noise."
Attached new patch where it logs warning message for each mismatched block.
Please review the patch.
bq.Also, please give different patch files different names, to avoid confusion.
Thank you for this comment. I'll take care now onwards. I've named new patch
HDFS-*3*.patch as there were two more patches before this.
bq. since you suggested splitting this JIRA into two, I had assumed that you
wanted to have the discussion about "automatic fixing" on the second JIRA
Shall I create a new jira and do a detailed brainstorming there.
> Verify the datanode directory layout
> ------------------------------------
>
> Key: HDFS-7648
> URL: https://issues.apache.org/jira/browse/HDFS-7648
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Rakesh R
> Attachments: HDFS-7648-3.patch, HDFS-7648.patch, HDFS-7648.patch
>
>
> HDFS-6482 changed datanode layout to use block ID to determine the directory
> to store the block. We should have some mechanism to verify it. Either
> DirectoryScanner or block report generation could do the check.
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