Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/5327#discussion_r27638972
--- Diff: sbin/spark-daemon.sh ---
@@ -195,6 +195,23 @@ case $option in
fi
;;
+ (status)
+
+ if [ -f $pid ]; then
+ TARGET_PID=`cat $pid`
+ if kill -0 $TARGET_PID > /dev/null 2>&1; then
--- End diff --
See how the process is detected in the rest of this file. The problem with
this is that theoretically you would report the process is running even if,
somehow, it had died and the PID was still around but another process had taken
on the same ID. It's possible to be more defensive. Heck, if you know enough
`bash`, make a local function for it.
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