Github user vundela commented on a diff in the pull request:
https://github.com/apache/spark/pull/9118#discussion_r42067281
--- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala ---
@@ -340,6 +340,15 @@ private[spark] class Client(
"for alternatives.")
}
+ // Uploading $SPARK_CONF_DIR/log4j.properties file to the distributed
cache to make sure that
+ // the executors will use the latest configurations instead of the
default values. This is
+ // required when user changes log4j.properties directly to set the log
configurations. If
+ // configuration file is provided through --files then executors will
be taking configurations
+ // from --files instead of $SPARK_CONF_DIR/log4j.properties.
+ val log4jConfUrl = getClass.getResource("/log4j.properties")
+ val log4jConf =
+ oldLog4jConf.orElse(Option(if (log4jConfUrl == null) null else
log4jConfUrl.toString()))
--- End diff --
Done
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