Namenode should synchronously resolve a datanode's network location when the
datanode registers
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Key: HADOOP-3620
URL: https://issues.apache.org/jira/browse/HADOOP-3620
Project: Hadoop Core
Issue Type: Improvement
Components: dfs
Affects Versions: 0.18.0
Reporter: Hairong Kuang
Assignee: Hairong Kuang
Fix For: 0.19.0
Release 0.18.0 removes the rpc timeout. So the namenode is ok to resolve a
datanode's network location when the datanode registers. This could remove
quite a lot of unnecessary code in both datanode and namenode to handle
asynchronous network location resolution and avoid many potential bugs.
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