Is that 32 CPUs or 32 cores? So in this configuration assuming 32 cores you have I worker with how much memory (deducting memory for OS etc) and 32 cores.
What is the ratio of memory per core in this case? 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 15 April 2016 at 16:15, luca_guerra <lgue...@bitbang.com> wrote: > Hi, > I'm looking for a solution to improve my Spark cluster performances, I have > read from http://spark.apache.org/docs/latest/hardware-provisioning.html: > "We recommend having 4-8 disks per node", I have tried both with one and > two > disks but I have seen that with 2 disks the execution time is doubled. Any > explanations about this? > > This is my configuration: > 1 machine with 140 GB RAM 2 disks and 32 CPU (I know that is an unusual > configuration) and on this I have a standalone Spark cluster with 1 Worker. > > Thank you very much for the help. > > > > > -- > View this message in context: > http://apache-spark-user-list.1001560.n3.nabble.com/How-many-disks-for-spark-local-dirs-tp26790.html > Sent from the Apache Spark User List mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > For additional commands, e-mail: user-h...@spark.apache.org > >
