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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3504) Configurable retry in DFSClient
Date Tue, 12 Jun 2012 08:15:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13293436#comment-13293436
] 

Hudson commented on HDFS-3504:
------------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #2418 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2418/])
    HDFS-3504. Support configurable retry policy in DFSClient for RPC connections and RPC
calls, and add MultipleLinearRandomRetry, a new retry policy. (Revision 1349124)

     Result = SUCCESS
szetszwo : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1349124
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/RetryInvocationHandler.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/RetryPolicies.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/RetryPolicy.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/RetryProxy.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RemoteException.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcEngine.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/NameNodeProxies.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/MiniDFSCluster.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSClientRetries.java

                
> Configurable retry in DFSClient
> -------------------------------
>
>                 Key: HDFS-3504
>                 URL: https://issues.apache.org/jira/browse/HDFS-3504
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Siddharth Seth
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 2.0.1-alpha
>
>         Attachments: h3504_20120607.patch, h3504_20120608.patch, h3504_20120611.patch
>
>
> When NN maintenance is performed on a large cluster, jobs end up failing. This is particularly
bad for long running jobs. The client retry policy could be made configurable so that jobs
don't need to be restarted.

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