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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7163) WebHdfsFileSystem should retry reads according to the configured retry policy.
Date Tue, 22 Dec 2015 20:23:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15068674#comment-15068674
] 

Hudson commented on HDFS-7163:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #9015 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/9015/])
HDFS-7163. WebHdfsFileSystem should retry reads according to the (kihwal: rev 867048c3e4b20ece0039a876def129fa5eb9234f)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSXAttrBaseTest.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsFileSystemContract.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsTokens.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/StripedFileTestUtil.java


> WebHdfsFileSystem should retry reads according to the configured retry policy.
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-7163
>                 URL: https://issues.apache.org/jira/browse/HDFS-7163
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 3.0.0, 2.5.1
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>         Attachments: HDFS-7163-branch-2.003.patch, HDFS-7163-branch-2.004.patch, HDFS-7163-branch-2.7.003.patch,
HDFS-7163-branch-2.7.004.patch, HDFS-7163.001.patch, HDFS-7163.002.patch, HDFS-7163.003.patch,
HDFS-7163.004.patch, HDFS-7163.005.patch, WebHDFS Read Retry.pdf
>
>
> In the current implementation of WebHdfsFileSystem, opens are retried according to the
configured retry policy, but not reads. Therefore, if a connection goes down while data is
being read, the read will fail and the read will have to be retried by the client code.
> Also, after a connection has been established, the next read (or seek/read) will fail
and the read will have to be restarted by the client code.



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