Need a way to get the inforserver port of a name node
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Key: HADOOP-4324
URL: https://issues.apache.org/jira/browse/HADOOP-4324
Project: Hadoop Core
Issue Type: New Feature
Components: dfs
Affects Versions: 0.20.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Priority: Minor
To test that services shut down cleanly, I need to know the port that the
namenode brings up an info server on, which means that its assigned port value
needs to be exported from the namesystem.
I can see two ways to do this, and wish some recommendations of the best
approach
1. extract the port value when the FSNameSystem comes up, and add it to that
classes Conf; add a method to get that Conf so that its state can be read.
2. save the port value to a member variable in FSNameSystem and provide a
public method to get at it.
My preference is for #1, as it is consistent with how the NameNode saves its
port value, and doesn't change any APIs.
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