Hi Sujeet, if you have a single machine then it is Spark standalone mode.
In Standalone cluster mode Spark allocates resources based on cores. By default, an application will grab all the cores in the cluster. You only have one worker that lives within the driver JVM process that you start when you start the application with spark-shell or spark-submit in the host where the cluster manager is running. The Driver node runs on the same host that the cluster manager is running. The Driver requests the Cluster Manager for resources to run tasks. The worker is tasked to create the executor (in this case there is only one executor) for the Driver. The Executor runs tasks for the Driver. Only one executor can be allocated on each worker per application. In your case you only have The minimum you will need will be 2-4G of RAM and two cores. Well that is my experience. Yes you can submit more than one spark-submit (the driver) but they may queue up behind the running one if there is not enough resources. You pointed out that you will be running few applications in parallel on the same host. The likelihood is that you are using a VM machine for this purpose and the best option is to try running the first one, Check Web GUI on 4040 to see the progress of this Job. If you start the next JVM then assuming it is working, it will be using port 4041 and so forth. In actual fact try the command "free" to see how much free memory you have. HTH Dr Mich Talebzadeh LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* http://talebzadehmich.wordpress.com On 28 May 2016 at 16:42, sujeet jog <sujeet....@gmail.com> wrote: > Hi, > > I have a question w.r.t production deployment mode of spark, > > I have 3 applications which i would like to run independently on a single > machine, i need to run the drivers in the same machine. > > The amount of resources i have is also limited, like 4- 5GB RAM , 3 - 4 > cores. > > For deployment in standalone mode : i believe i need > > 1 Driver JVM, 1 worker node ( 1 executor ) > 1 Driver JVM, 1 worker node ( 1 executor ) > 1 Driver JVM, 1 worker node ( 1 executor ) > > The issue here is i will require 6 JVM running in parallel, for which i do > not have sufficient CPU/MEM resources, > > > Hence i was looking more towards a local mode deployment mode, would like > to know if anybody is using local mode where Driver + Executor run in a > single JVM in production mode. > > Are there any inherent issues upfront using local mode for production base > systems.?.. > >
