Hi Akhil and Kousuke,
Thank you for your quick response.
Monitoring through JSON API seems straightforward and cool.
Thanks again!
2014-11-18 19:06 GMT+09:00 Kousuke Saruta <saru...@oss.nttdata.co.jp>:
> Hi Kenichi
>
>> 1. How can I stop a slave on the specific node?
>> Under `sbin/` directory, there are
>> `start-{all,master,slave,slaves}` and `stop-{all,master,slaves}`, but
>> no `stop-slave`. Are there any way to stop the specific (e.g., the
>> 2nd) slave via command line?
>
>
> You can use sbin/spark-daemon.sh on the machine where the worker you'd like
> to stop runs.
> First, you find PID of the worker you'd like to stop and second, you find
> PID file of the worker.
> The PID file is on /tmp/ by default and the file name is like as follows.
>
> xxx.org.apache.spark.deploy.worker.Worker-<WorkerID>.pid
>
> After you find the PID file, you run the following command.
>
> sbin/spark-daemon.sh stop org.apache.spark.worker.Worker <WorkerID>
>
>> 2. How can I check cluster status from command line?
>> Are there any way to confirm that all Master / Workers are up and
>> working without using Web UI?
>
>
> AFAIK, there are no command line tools for checking statuses of standalone
> cluster.
> Instead of that, you can use special URL like as follows.
>
> http://<master or worker's hostname>:<webui-port>/json
>
> You can get Master and Worker status as JSON format data.
>
> - Kousuke
>
>
> (2014/11/18 0:27), Kenichi Maehashi wrote:
>>
>> Hi,
>>
>> I'm operating Spark in standalone cluster configuration (3 slaves) and
>> have some question.
>>
>> 1. How can I stop a slave on the specific node?
>> Under `sbin/` directory, there are
>> `start-{all,master,slave,slaves}` and `stop-{all,master,slaves}`, but
>> no `stop-slave`. Are there any way to stop the specific (e.g., the
>> 2nd) slave via command line?
>>
>> 2. How can I check cluster status from command line?
>> Are there any way to confirm that all Master / Workers are up and
>> working without using Web UI?
>>
>> Thanks in advance!
>>
>
--
Kenichi Maehashi
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