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From "Anunay Tiwari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13831) Correct check for error code to detect Azure Storage Throttling and provide retries
Date Thu, 15 Dec 2016 19:44:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15752315#comment-15752315
] 

Anunay Tiwari commented on HADOOP-13831:
----------------------------------------

+1

> Correct check for error code to detect Azure Storage Throttling and provide retries
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-13831
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13831
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>    Affects Versions: 2.7.3
>            Reporter: Gaurav Kanade
>            Assignee: Gaurav Kanade
>         Attachments: HADOOP-13831.001.patch
>
>
>  Azure Storage throttling  affects HBase operations such as archiving old WALS and others.
In such cases the storage driver needs to detect and handle the exception. We put in this
logic to do the retries however the condition to check for the exception is not always met
due to inconsistency in which the manner the error code is passed back. Instead the retry
logic should check for http status code (503) which is more reliable and consistent check



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