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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8517) Fix a decoding issue in stripped block recovering in client side
Date Tue, 02 Jun 2015 21:57:50 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jing Zhao updated HDFS-8517:
----------------------------
    Attachment: HDFS-8517-HDFS-7285.v2.patch

Since the remaining issues are mostly minor, I just made these changes and upload a v2 patch
here. The patch also does some refactoring in the test code and fixes {{TestDFSStripedInputStream#testPreadWithDNFailure}}.
Please let me know if it looks ok to you, [~drankye] and [~zhz].

> Fix a decoding issue in stripped block recovering in client side
> ----------------------------------------------------------------
>
>                 Key: HDFS-8517
>                 URL: https://issues.apache.org/jira/browse/HDFS-8517
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HDFS-8517-HDFS-7285-v1.patch, HDFS-8517-HDFS-7285.v2.patch
>
>
> [~jingzhao] reported a decoding issue in HDFS-8481 in the comment copied below:
> bq. While debugging HDFS-8319, I just found that in TestWriteReadStripedFile#testWritePreadWithDNFailure,
if we change the startOffsetInFile from cellSize * 5 to 0, the test fails with the following
error msg:
> {noformat}
> java.lang.AssertionError: Byte at 524288 should be the same expected:<27> but was:<-9>
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.failNotEquals(Assert.java:743)
> 	at org.junit.Assert.assertEquals(Assert.java:118)
> 	at org.junit.Assert.assertEquals(Assert.java:555)
> 	at org.apache.hadoop.hdfs.TestWriteReadStripedFile.testWritePreadWithDNFailure(TestWriteReadStripedFile.java:390)
> {noformat}



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