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https://issues.apache.org/jira/browse/HDFS-3357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410304#comment-13410304
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Hudson commented on HDFS-3357:
------------------------------

Integrated in Hadoop-Hdfs-0.23-Build #309 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/309/])
    HDFS-3591 Backport HDFS-3357 to branch-0.23. (Revision 1359209)

     Result = SUCCESS
daryn : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1359209
Files : 
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NetUtils.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/SocketIOWithTimeout.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/SocketInputStream.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/SocketInputWrapper.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/net/TestNetUtils.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/net/TestSocketIOWithTimeout.java
* 
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/test/GenericTestUtils.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/RemoteBlockReader2.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPOfferService.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/MiniDFSCluster.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDataTransferKeepalive.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/DataNodeTestUtils.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/test/GenericTestUtils.java

                
> DataXceiver reads from client socket with incorrect/no timeout
> --------------------------------------------------------------
>
>                 Key: HDFS-3357
>                 URL: https://issues.apache.org/jira/browse/HDFS-3357
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>    Affects Versions: 1.0.2, 2.0.0-alpha
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Critical
>             Fix For: 2.0.0-alpha
>
>         Attachments: hdfs-3357.txt, hdfs-3357.txt, hdfs-3357.txt
>
>
> In DataXceiver, we currently use Socket.setSoTimeout to try to manage the 
> read timeout when switching between reading the initial opCode, reading a 
> keepalive opcode, and reading the status after a successfully sent block. 
> However, since all of these reads use the same underlying DataInputStream, 
> the change to the socket timeout isn't respected. Thus, they all occur with 
> whatever timeout is set on the socket at the time of DataXceiver 
> construction. In practice this turns out to be 0, which can cause infinitely 
> hung xceivers.

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