>From SparkUI.scala :
def getUIPort(conf: SparkConf): Int = {
conf.getInt("spark.ui.port", SparkUI.DEFAULT_PORT)
}
Better retrieve effective UI port before probing.
Cheers
On Sat, Apr 11, 2015 at 2:38 PM, Nicholas Chammas <
nicholas.cham...@gmail.com> wrote:
> So basically, to tell if the master is ready to accept slaves, just poll
> http://master-node:4040 for an HTTP 200 response?
>
>
> On Sat, Apr 11, 2015 at 2:42 PM Shivaram Venkataraman <
> shiva...@eecs.berkeley.edu> wrote:
>
> > 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
> >>
> >>
> >
>
