Cheolsoo Park created SPARK-6662:
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Summary: Allow variable substitution in
spark.yarn.historyServer.address
Key: SPARK-6662
URL: https://issues.apache.org/jira/browse/SPARK-6662
Project: Spark
Issue Type: Wish
Components: YARN
Affects Versions: 1.3.0
Reporter: Cheolsoo Park
Priority: Minor
In Spark on YARN, explicit hostname and port number need to be set for
"spark.yarn.historyServer.address" in SparkConf to make the HISTORY link. If
the history server address is known and static, this is usually not a problem.
But in cloud, that is usually not true. Particularly in EMR, the history server
always runs on the same node as with RM. So I could simply set it to
{{$\{yarn.resourcemanager.hostname\}:18080}} if variable substitution is
allowed.
In fact, Hadoop configuration already implements variable substitution, so if
this property is read via YarnConf, this can be easily achievable.
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