Github user WangTaoTheTonic commented on a diff in the pull request:
https://github.com/apache/spark/pull/3823#discussion_r22308521
--- Diff: bin/spark-submit ---
@@ -42,7 +42,10 @@ while (($#)); do
shift
done
-DEFAULT_PROPERTIES_FILE="$SPARK_HOME/conf/spark-defaults.conf"
+DEFAULT_PROPERTIES_FILE="$SPARK_CONF_DIR/spark-defaults.conf"
+if [ ! -f "DEFAULT_PROPERTIES_FILE" ]; then
+ DEFAULT_PROPERTIES_FILE="$SPARK_HOME/conf/spark-defaults.conf"
+fi
export SPARK_SUBMIT_DEPLOY_MODE=${SPARK_SUBMIT_DEPLOY_MODE:-"client"}
export
SPARK_SUBMIT_PROPERTIES_FILE=${SPARK_SUBMIT_PROPERTIES_FILE:-"$DEFAULT_PROPERTIES_FILE"}
--- End diff --
I mean there is a possibility that user don't use the conf sub-directory
default installation location but specified.
For instance, I touch a spark-defaults.conf under `/etc/my-spark/` and use
it for submitting applications, so I set SPARK_CONF_DIR to `/etc/my-spark/` to
make the properties file work.
The properties file under `$SPARK_HOME/conf` could be unused or used for
submitting other applications.
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