11-27-2018 03:13 AM
The new feature of HDFS to handle the contention of RPC volume that grows over the active NameNode is Observer NameNode (HDFS-12975). And would help everyone in cloudera community specially with real time data processing systems and streaming jobs which requires a lot of HDFS Data scans.
Distributing the Write vs Read operation on different system sounds very much logical solution.
The curiosity is that whether Cloudera is planning to bring some version of Observer NameNode or Read-Only NameNode replica in upcoming CDH versions ?
Will they name it as Observer or Read-Only NameNode ?
Currently incubating in Cloudera Labs:Envelope