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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4265) BKJM doesn't take advantage of speculative reads
Date Wed, 09 Jul 2014 14:27:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056290#comment-14056290
] 

Hadoop QA commented on HDFS-4265:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12654804/003-HDFS-4265.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7302//console

This message is automatically generated.

> BKJM doesn't take advantage of speculative reads
> ------------------------------------------------
>
>                 Key: HDFS-4265
>                 URL: https://issues.apache.org/jira/browse/HDFS-4265
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha
>    Affects Versions: 2.2.0
>            Reporter: Ivan Kelly
>            Assignee: Rakesh R
>         Attachments: 001-HDFS-4265.patch, 002-HDFS-4265.patch, 003-HDFS-4265.patch
>
>
> BookKeeperEditLogInputStream reads entry at a time, so it doesn't take advantage of the
speculative read mechanism introduced by BOOKKEEPER-336.



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