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From "Ravi Prakash (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-6074) Under replicated blocks with ONE replica should get replication priority over blocks with more than one replica.
Date Sat, 14 Feb 2015 02:23:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ravi Prakash resolved HDFS-6074.
--------------------------------
    Resolution: Not a Problem

> Under replicated blocks with ONE replica should get replication priority over blocks
with more than one replica.
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6074
>                 URL: https://issues.apache.org/jira/browse/HDFS-6074
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.2.0
>            Reporter: Mike George
>            Priority: Minor
>
> We had two nodes fail at the same time.   There were over 2000 blocks at higher risk
of causing corrupt files since they were single replica.   There were over 40000 under replicated
blocks with most having two replicas and the namenode priority to recreate missing replicas
clearly placed no priority of single replica blocks.



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