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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13195) hadoop-azure: page blob append support
Date Tue, 03 Jan 2017 10:55:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated HADOOP-13195:
------------------------------------
    Component/s:     (was: azure)
                 fs/azure

> hadoop-azure: page blob append support
> --------------------------------------
>
>                 Key: HADOOP-13195
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13195
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/azure
>            Reporter: Bogdan Raducanu
>
> The use case for this is storing transaction logs, which, unlike HBase logs, need to
be appended, instead of created every time.
> Currently, hadoop-azure has append support but only for Block Blobs, which are not suited
for transaction logging.
> After a quick look, I think the existing {{PageBlobOutputStream}} can be easily adapted
to support appends. It already contains logic to re-upload the last page if it's not full.



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