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https://issues.apache.org/jira/browse/HADOOP-14748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119870#comment-16119870
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Steve Loughran commented on HADOOP-14748:
-----------------------------------------
Note that HBase running on WASB complains a lot about streams not having this
feature...it now expects them to
> Wasb input streams to implement CanUnbuffer
> -------------------------------------------
>
> Key: HADOOP-14748
> URL: https://issues.apache.org/jira/browse/HADOOP-14748
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 2.9.0
> Reporter: Steve Loughran
> Priority: Minor
>
> HBase relies on FileSystems implementing CanUnbuffer.unbuffer() to force
> input streams to free up remote connections (HBASE-9393Link). This works for
> HDFS, but not elsewhere.
> WASB {{BlockBlobInputStream}} can implement this by closing the stream
> in ({{closeBlobInputStream}}, so it will be re-opened elsewhere.
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