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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8716) introduce a new config specifically for safe mode block count
Date Tue, 08 Sep 2015 19:26:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14735460#comment-14735460
] 

Hadoop QA commented on HDFS-8716:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12745376/HDFS-8716.7.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 970daaa |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/12344/console |


This message was automatically generated.

> introduce a new config specifically for safe mode block count
> -------------------------------------------------------------
>
>                 Key: HDFS-8716
>                 URL: https://issues.apache.org/jira/browse/HDFS-8716
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Chang Li
>            Assignee: Chang Li
>         Attachments: HDFS-8716.1.patch, HDFS-8716.2.patch, HDFS-8716.3.patch, HDFS-8716.4.patch,
HDFS-8716.5.patch, HDFS-8716.6.patch, HDFS-8716.7.patch, HDFS-8716.7.patch
>
>
> During the start up, namenode waits for n replicas of each block to be reported by datanodes
before exiting the safe mode. Currently n is tied to the min replicas config. We could set
min replicas to more than one but we might want to exit safe mode as soon as each block has
one replica reported. This can be worked out by introducing a new config variable for safe
mode block count



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