Eli Collins created HDFS-3946:
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Summary: Separate client and server uses of NN#getAddress
Key: HDFS-3946
URL: https://issues.apache.org/jira/browse/HDFS-3946
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Affects Versions: 2.0.0-alpha
Reporter: Eli Collins
Priority: Minor
The use of the various static NN#getAddress methods are hard to follow because
they're used by by the NN itself, the DFS client, and NN related services like
the fsck and the balancer. They all use fs.getDefaultFS to determine the
address, however in the NN case this config has been clobbered with the RPC
address rather than use the core-site.xml value. In the other cases it has not.
This makes it tedious to figure out things like all the various places the
server side RPC addr gets used (eg in HDFS-3932 where it's set to the
wildcard). This would be a lot easier to follow if the NN and client uses where
separate so we could easily see where the NN is determining it's address (and
using the clobbered value) and where the clients are determining it (and using
the core-site value).
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