InterDatanodeProtocolServerSideTranslatorPB doesn't handle null response from
initReplicaRecovery
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Key: HDFS-3214
URL: https://issues.apache.org/jira/browse/HDFS-3214
Project: Hadoop HDFS
Issue Type: Bug
Components: data-node
Affects Versions: 2.0.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Blocker
The initReplicaRecovery function may return null to indicate that the block
doesn't exist on the local node. However, the translator doesn't handle this
case, which results in NPEs.
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