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https://issues.apache.org/jira/browse/HADOOP-13650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15815166#comment-15815166
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Steve Loughran commented on HADOOP-13650:
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With the filesystem driven customisation, we should be taking the table name as
a cue for all information related to a bucket; that is used to propagate
policies down, including DDB options.
regarding the code
* I like how you do the tests, execing the CLI entry point.
* {{S3GuardTool}} could just import Constants.*
* {{static private boolean exist(DynamoDB dynamoDB, String tableName)}} should
be {{private static}} and can use Assert inline, rather than preconditions
* I think we should also have an fsck command which compares actual and
declared, with different action options: fix up ddb, or fail with an exit code.
I don't know if that needs to be in this patch though, or a followon
> S3Guard: Provide command line tools to manipulate metadata store.
> -----------------------------------------------------------------
>
> Key: HADOOP-13650
> URL: https://issues.apache.org/jira/browse/HADOOP-13650
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: HADOOP-13345
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HADOOP-13650-HADOOP-13345.000.patch,
> HADOOP-13650-HADOOP-13345.001.patch, HADOOP-13650-HADOOP-13345.002.patch,
> HADOOP-13650-HADOOP-13345.003.patch, HADOOP-13650-HADOOP-13345.004.patch,
> HADOOP-13650-HADOOP-13345.005.patch, HADOOP-13650-HADOOP-13345.006.patch
>
>
> Similar systems like EMRFS has the CLI tools to manipulate the metadata
> store, i.e., create or delete metadata store, or {{import}}, {{sync}} the
> file metadata between metadata store and S3.
> http://docs.aws.amazon.com//ElasticMapReduce/latest/ReleaseGuide/emrfs-cli-reference.html
> S3Guard should offer similar functionality.
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