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https://issues.apache.org/jira/browse/HDFS-673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HDFS-673:
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Attachment: pkgRmOrder.patch
A patch for review.
> BlockReceiver#PacketResponder should not remove a packet from the ack queue
> before its ack is sent
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-673
> URL: https://issues.apache.org/jira/browse/HDFS-673
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: pkgRmOrder.patch
>
>
> After a BlockReceiver finish receiving the last packet of a block, it waits
> until the ack queue becomes empty. It them assumes that all acks have been
> sent and shunts down network connections. The current code removes a packet
> from the ack queue before its ack is sent. So there is a chance that the
> connection gets closed before an ack is sent.
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