Github user WangTaoTheTonic commented on a diff in the pull request:
https://github.com/apache/spark/pull/5205#discussion_r27211048
--- Diff: docs/spark-standalone.md ---
@@ -24,7 +24,7 @@ the master's web UI, which is
[http://localhost:8080](http://localhost:8080) by
Similarly, you can start one or more workers and connect them to the
master via:
- ./bin/spark-class org.apache.spark.deploy.worker.Worker spark://IP:PORT
+ ./sbin/start-slave.sh <worker#> <master-spark-URL>
--- End diff --
if we run `./sbin/start-slave.sh <worker#> <master-spark-URL>`, the data
flow would be:
* in start-slave.sh
"$sbin"/spark-daemon.sh start org.apache.spark.deploy.worker.Worker
<worker#> <master-spark-URL>
* in spark-daemon.sh
----->
option=start command=org.apache.spark.deploy.worker.Worker
instance=<worker#>
run_command class <master-spark-URL>
----->
nohup nice -n "$SPARK_NICENESS" "$SPARK_PREFIX"/bin/spark-class
org.apache.spark.deploy.worker.Worker <master-spark-URL> >> "$log" 2>&1 <
/dev/null &
So we can tell except once more `load-spark-env.sh`(also is done in
`spark-class`) and log/backgroud handle process, these two ways are same
actually.
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