Thank you Jacek.
In case of YARN, I see that hadoop jars are present in system classpath for
Driver. Will it be the same for all executors?

On Tue, Jun 7, 2016 at 11:22 AM, Jacek Laskowski <ja...@japila.pl> wrote:

> Ouch, I made a mistake :( Sorry.
>
> You've asked about spark **history** server. It's pretty much the same.
>
> HistoryServer is a web interface for completed and running (aka
> incomplete) Spark applications. It uses EventLoggingListener to
> collect events as JSON using org.apache.spark.util.JsonProtocol
> object.
>
> Pozdrawiam,
> Jacek Laskowski
> ----
> https://medium.com/@jaceklaskowski/
> Mastering Apache Spark http://bit.ly/mastering-apache-spark
> Follow me at https://twitter.com/jaceklaskowski
>
>
> On Tue, Jun 7, 2016 at 8:18 PM, Jacek Laskowski <ja...@japila.pl> wrote:
> > Hi,
> >
> > It is the driver - see the port. Is this 4040 or similar? It's started
> > when SparkContext starts and is controlled by spark.ui.enabled.
> >
> > spark.ui.enabled (default: true) = controls whether the web UI is
> > started or not.
> >
> > It's through JobProgressListener which is the SparkListener for web UI
> > that the console knows what happens under the covers (and can
> > calculate the stats).
> >
> > BTW, spark.ui.port (default: 4040) controls the port Web UI binds to.
> >
> > Pozdrawiam,
> > Jacek Laskowski
> > ----
> > https://medium.com/@jaceklaskowski/
> > Mastering Apache Spark http://bit.ly/mastering-apache-spark
> > Follow me at https://twitter.com/jaceklaskowski
> >
> >
> > On Tue, Jun 7, 2016 at 8:11 PM, satish saley <satishsale...@gmail.com>
> wrote:
> >> Hi,
> >> In spark history server, we see environment tab. Is it show environment
> of
> >> Driver or Executor or both?
> >>
> >> Jobs
> >> Stages
> >> Storage
> >> Environment
> >> Executors
> >>
>

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