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https://issues.apache.org/jira/browse/HDFS-3032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222971#comment-13222971
 ] 

Hudson commented on HDFS-3032:
------------------------------

Integrated in Hadoop-Hdfs-0.23-Commit #634 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Commit/634/])
    svn merge -c 1297328 from trunk for HDFS-3032. (Revision 1297334)

     Result = SUCCESS
szetszwo : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1297334
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs
* 
/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
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/LeaseRenewer.java
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLease.java

                
> Lease renewer tries forever even if renewal is not possible
> -----------------------------------------------------------
>
>                 Key: HDFS-3032
>                 URL: https://issues.apache.org/jira/browse/HDFS-3032
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>    Affects Versions: 0.23.0, 0.24.0, 0.23.1
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 0.24.0, 0.23.2, 0.23.3
>
>         Attachments: h3032_20120205.patch, hdfs-3032.patch.txt, 
> hdfs-3032.patch.txt, hdfs-3032.patch.txt, hdfs-3032.patch.txt
>
>
> When LeaseRenewer gets an IOException while attempting to renew for a client, 
> it retries after sleeping 500ms. If the exception is caused by a condition 
> that will never change, it keeps talking to the name node until the DFSClient 
> object is closed or aborted.  With the FileSystem cache, a DFSClient can stay 
> alive for very long time. We've seen the cases in which node managers and 
> long living jobs flooding name node with this type of calls.
> The current proposal is to abort the client when RemoteException is caught 
> during renewal. LeaseRenewer already does abort on all clients when it sees a 
> SocketTimeoutException.

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