Datanode toString() NPEs on null dnRegistration
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Key: HDFS-885
URL: https://issues.apache.org/jira/browse/HDFS-885
Project: Hadoop HDFS
Issue Type: Improvement
Components: data-node
Affects Versions: 0.22.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Priority: Minor
Fix For: 0.22.0
{{Datanode toString() }} assumes the {{dnRegistration}} value is never null.
This is not always true, and when it is not the case, the {{toString()}}
operator NPEs.
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