Yeah from what I remember it was set defensively. I don't know of a good
way to check if the master is up though. I guess we could poll the Master
Web UI and see if we get a 200/ok response

Shivaram

On Fri, Apr 10, 2015 at 8:24 PM, Nicholas Chammas <
nicholas.cham...@gmail.com> wrote:

> Check this out
> <
> https://github.com/mesos/spark-ec2/blob/f0a48be1bb5aaeef508619a46065648beb8f1d92/spark-standalone/setup.sh#L26-L33
> >
> (from spark-ec2):
>
> # Start Master$BIN_FOLDER/start-master.sh
> # Pause
> sleep 20
> # Start Workers$BIN_FOLDER/start-slaves.sh
>
> I know this was probably done defensively, but is there a more direct way
> to know when the master is ready?
>
> Nick
> ​
>

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