Íñigo Goiri created HDFS-13098:
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Summary: RBF: Datanodes interacting with Routers
Key: HDFS-13098
URL: https://issues.apache.org/jira/browse/HDFS-13098
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Íñigo Goiri
Datanodes talk to particular Namenodes. We could use the Router infrastructure
for the Datanodes to register/heartbeating into them and the Routers would
forward this to particular Namenodes. This would make the assignment of
Datanodes to subclusters potentially more dynamic.
The implementation would potentially include:
* Router to implement part of DatanodeProtocol
* Forwarding DN messages into Routers
* Policies to assign datanodes to subclusters
* Datanodes to make blockpool configuration dynamic
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