Datanodes should send block reports to both Active and Standby Namenodes.
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Key: HDFS-2166
URL: https://issues.apache.org/jira/browse/HDFS-2166
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Justin Joseph
Datanode should send the Block Reports and Block Received commands to both
Active and Standby Namenodes. It substantially reduces the time for Standby to
take over as Active and enhances the service availability.
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