hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4861) BlockPlacementPolicyDefault does not consider decommissioning racks
Date Sat, 05 Apr 2014 02:18:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960917#comment-13960917
] 

Hadoop QA commented on HDFS-4861:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12638791/HDFS-4861-v2.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:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6592//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6592//console

This message is automatically generated.

> BlockPlacementPolicyDefault does not consider decommissioning racks
> -------------------------------------------------------------------
>
>                 Key: HDFS-4861
>                 URL: https://issues.apache.org/jira/browse/HDFS-4861
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 0.23.7, 2.1.0-beta
>            Reporter: Kihwal Lee
>            Assignee: Rushabh S Shah
>         Attachments: HDFS-4861-v2.patch, HDFS-4861.patch
>
>
> getMaxNodesPerRack() calculates the max replicas/rack like this:
> {code}
> int maxNodesPerRack = (totalNumOfReplicas-1)/clusterMap.getNumOfRacks()+2;
> {code}
> Since this does not consider the racks that are being decommissioned and the decommissioning
state is only checked later in isGoodTarget(), certain blocks are not replicated even when
there are many racks and nodes.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message