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https://issues.apache.org/jira/browse/HADOOP-13980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16881222#comment-16881222
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Steve Loughran commented on HADOOP-13980:
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My HADOOP-16384 JIRA exports scan results as a TSV file
Different listings
* full dump of metastore
* treewalk of S3A FS; shows connected files
* listFiles(recursive) of S3AFS
* LIST / of the S3 store; shows what is really there
Have a play with that patch.
FAQ:
* why TSV & not CSV? avoids escaping commas; lines up better in editors
* Why TSV and not Avro: avoids writing an avsc file, requiring avro JAR on the
CP to work, avro jar version problems.
* Why TSV and not JSON? Can't be arsed. Oh, and you can import TSVs into google
sheets, open in excel etc.
> S3Guard CLI: Add fsck check command
> -----------------------------------
>
> Key: HADOOP-13980
> URL: https://issues.apache.org/jira/browse/HADOOP-13980
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/s3
> Affects Versions: 3.0.0-beta1
> Reporter: Aaron Fabbri
> Assignee: Gabor Bota
> Priority: Major
>
> As discussed in HADOOP-13650, we want to add an S3Guard CLI command which
> compares S3 with MetadataStore, and returns a failure status if any
> invariants are violated.
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