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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-673) BlockReceiver#PacketResponder should not remove a packet from the ack queue before its ack is sent
Date Thu, 01 Oct 2009 22:42:23 GMT
BlockReceiver#PacketResponder should not remove a packet from the ack queue before its ack
is sent
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                 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


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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