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https://issues.apache.org/jira/browse/HADOOP-14041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15870930#comment-15870930
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Aaron Fabbri commented on HADOOP-14041:
---------------------------------------

This usage also doesn't work:

{noformat}
$ hadoop s3a prune -H 2 -m dynamodb://fabbri-bucket s3a://fabbri-bucket
2017-02-16 14:02:26,320 INFO s3guard.S3GuardTool: create metadata store: 
dynamodb://fabbri-dev scheme: dynamodb
2017-02-16 14:02:26,456 WARN util.NativeCodeLoader: Unable to load 
native-hadoop library for your platform... using builtin-java classes where 
applicable
2017-02-16 14:02:27,191 ERROR s3guard.DynamoDBClientFactory: Incorrect DynamoDB 
endpoint: null
java.lang.IllegalArgumentException: endpoint cannot be null
        at com.amazonaws.util.RuntimeHttpUtils.toUri(RuntimeHttpUtils.java:147)
        at 
com.amazonaws.AmazonWebServiceClient.toURI(AmazonWebServiceClient.java:224)
{noformat}

Similar error doing {{hadoop s3a prune -H 2 -m dynamodb://fabbri-bucket -e 
dynamodb.us-west-2.amazonaws.com}}

> CLI command to prune old metadata
> ---------------------------------
>
>                 Key: HADOOP-14041
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14041
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>         Attachments: HADOOP-14041-HADOOP-13345.001.patch, 
> HADOOP-14041-HADOOP-13345.002.patch, HADOOP-14041-HADOOP-13345.003.patch, 
> HADOOP-14041-HADOOP-13345.004.patch, HADOOP-14041-HADOOP-13345.005.patch
>
>
> Add a CLI command that allows users to specify an age at which to prune 
> metadata that hasn't been modified for an extended period of time. Since the 
> primary use-case targeted at the moment is list consistency, it would make 
> sense (especially when authoritative=false) to prune metadata that is 
> expected to have become consistent a long time ago.



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