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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, 23 Oct 2013 05:27:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802616#comment-13802616
] 

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/12591958/001-HDFS-4265.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {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/5259//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
>
>
> 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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