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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13908) S3Guard: Existing tables may not be initialized correctly in DynamoDBMetadataStore
Date Fri, 06 Jan 2017 23:47:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15806195#comment-15806195
] 

Chris Nauroth commented on HADOOP-13908:
----------------------------------------

[~liuml07], thank you for the update.  I agree with proceeding with patch 005 and possibly
optimizing the table probe logic in scope of a different JIRA issue.  I will hold off committing
in case Steve wants to respond again, since he made the earlier comment about preferring to
avoid {{table.describe()}}.

> S3Guard: Existing tables may not be initialized correctly in DynamoDBMetadataStore
> ----------------------------------------------------------------------------------
>
>                 Key: HADOOP-13908
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13908
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: HADOOP-13345
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-13908-HADOOP-13345.000.patch, HADOOP-13908-HADOOP-13345.001.patch,
HADOOP-13908-HADOOP-13345.002.patch, HADOOP-13908-HADOOP-13345.002.patch, HADOOP-13908-HADOOP-13345.003.patch,
HADOOP-13908-HADOOP-13345.004.patch, HADOOP-13908-HADOOP-13345.005.patch
>
>
> This was based on discussion in [HADOOP-13455]. Though we should not create table unless
the config {{fs.s3a.s3guard.ddb.table.create}} is set true, we still have to get the existing
table in {{DynamoDBMetadataStore#initialize()}} and wait for its becoming active, before any
table/item operations.



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