Elek, Marton created HDFS-12655:
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Summary: Ozone: use specific names for RPC.Server instances
Key: HDFS-12655
URL: https://issues.apache.org/jira/browse/HDFS-12655
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ozone
Affects Versions: HDFS-7240
Reporter: Elek, Marton
Assignee: Elek, Marton
My original motivation is using meaningful names on the scm web ui. As you can
see on the attached screenshot we display the metrics for all the RPC servers
(using hadoop metrics published on jmx). Unfortunatelly we can display only the
port number on the web ui as there are no meaningfull names published on the
jmx interface.
After some investigation I found that there is a serverName constructor
parameter for but it is NOT used currently.
This patch will:
1. store the serverName in field of RPC.Server a
2. Improve the way how the serverName is calculated from the protocol class
names (it's typically an anonnymous inner class, so I remove the unnecessary
$-s from the name.)
3. Add a new tag to the RpcMetrics (serverName) based on the serverName field
of the Rpc.Server It will be displayed over JMX
4. Add unit tests for checking the tag values and the default
classname->servername mapping.
ps: I need it for Ozone SCM web ui, but let ne know if it should be moved to
HADOOP project/trunk.
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