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