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https://issues.apache.org/jira/browse/HADOOP-13449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15665346#comment-15665346
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Lei (Eddy) Xu commented on HADOOP-13449:
----------------------------------------

Hi, [~liuml07] 

The patch LGTM overall. +1.  I am OK to commit the last patch in the feature 
branch.

Some nits that are not necessary to be addressed in this patch:

* {{void deleteTable()}} should be an interface method for {{MetadataStore}}, 
and maybe rename it to {{destroy()}} / {{tearDown()}}? Each MS should have this 
function and not all of them are implemented "table" concept.

* Can we move {{createTable()}} from {{initialization()}} ? or add a flag like 
{{CREATE_IF_NOT_EXISTS}} in configuration? Because for the {{s3guard destroy -m 
URI}} command, it needs to initialize the DynamoDBMetadataStore instance first 
and then call {{destroy()}} / {{deleteTable()}}. 


> S3Guard: Implement DynamoDBMetadataStore.
> -----------------------------------------
>
>                 Key: HADOOP-13449
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13449
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Chris Nauroth
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-13449-HADOOP-13345.000.patch, 
> HADOOP-13449-HADOOP-13345.001.patch, HADOOP-13449-HADOOP-13345.002.patch, 
> HADOOP-13449-HADOOP-13345.003.patch, HADOOP-13449-HADOOP-13345.004.patch
>
>
> Provide an implementation of the metadata store backed by DynamoDB.



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