Improve logging when replicas are marked as corrupt
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Key: HDFS-2985
URL: https://issues.apache.org/jira/browse/HDFS-2985
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Minor
Currently in 0.23 and trunk, there is no logging which indicates _why_ a
replica has been marked corrupt, only that it has been marked corrupt. Because
corruption can be a serious problem (and should be very rare), it's worth
logging more detail whenever a block is added to the corrupt replica map.
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