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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15837) DynamoDB table Update can fail S3A FS init
Date Tue, 09 Oct 2018 21:15:01 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644105#comment-16644105
] 

Steve Loughran commented on HADOOP-15837:
-----------------------------------------

Proposed fix

waitForTableActive wrapped with retry; the failure to exit state triggers this. Docs updated.

Give that the table still seems live (AWS Docs confirm this): https://docs.amazonaws.cn/en_us/amazondynamodb/latest/developerguide/WorkingWithTables.Basics.html#WorkingWithTables.Basics.UpdateTable
the core solution is simple: update == ready to read.

I still want to add some retry checks on waitForTable though, in case the time to come up
is > built in wait time, which is clearly pretty small

> DynamoDB table Update can fail S3A FS init
> ------------------------------------------
>
>                 Key: HADOOP-15837
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15837
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.2.0
>         Environment: s3guard test with small capacity (10) but autoscale enabled &
multiple consecutive parallel test runs executed...this seems to have been enough load to
trigger the state change
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>
> When DDB autoscales a table, it goes into an UPDATING state. The waitForTableActive operation
in the AWS SDK doesn't seem to wait long enough for this to recover. We need to catch &
retry



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