Konstantin Shvachko created HDFS-13780:
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Summary: Postpone NameNode state discovery in
ObserverReadProxyProvider until the first real RPC call.
Key: HDFS-13780
URL: https://issues.apache.org/jira/browse/HDFS-13780
Project: Hadoop HDFS
Issue Type: Sub-task
Components: hdfs-client
Reporter: Konstantin Shvachko
Currently {{ObserverReadProxyProvider}} during instantiation discovers
Observers by poking known NameNodes and checking their states. This rather
expensive process can be postponed until the first actual RPC call.
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