Mike George created HDFS-6074:
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Summary: 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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