Spark Job Server with Yarn and Kerberos

2016-01-04 Thread Mike Wright
Has anyone used Spark Job Server on a "kerberized" cluster in YARN-Client mode? When Job Server contacts the YARN resource manager, we see a "Cannot impersonate root" error and am not sure what we have misconfigured. Thanks. _______ *Mike Wright* Principal

Re: Questions on Kerberos usage with YARN and JDBC

2015-12-13 Thread Mike Wright
Kerberos seems to be working otherwise ... for example, we're using it successfully to control access to HDFS and it's linked to AD ... we're using Ranger if that helps. I'm not a systems admin guy so this is really not my area of expertise. _______ *Mike Wright*

Re: is Multiple Spark Contexts is supported in spark 1.5.0 ?

2015-12-11 Thread Mike Wright
Thanks for the insight! ___ *Mike Wright* Principal Architect, Software Engineering S&P Capital IQ and SNL 434-951-7816 *p* 434-244-4466 *f* 540-470-0119 *m* mwri...@snl.com On Fri, Dec 11, 2015 at 2:38 PM, Michael Armbrust wrote: > The way that we do this is to have a

Re: is Multiple Spark Contexts is supported in spark 1.5.0 ?

2015-12-11 Thread Mike Wright
Somewhat related - What's the correct implementation when you have a single cluster to support multiple jobs that are unrelated and NOT sharing data? I was directed to figure out, via job server, to support "multiple contexts" and explained that multiple contexts per JVM is not really supported. So

Questions on Kerberos usage with YARN and JDBC

2015-12-11 Thread Mike Wright
As part of our implementation, we are utilizing a full "Kerberized" cluster built on the Hortonworks suite. We're using Job Server as the front end to initiate short-run jobs directly from our client-facing product suite. 1) We believe we have configured the job server to start with the appropriat

Re: New to Spark - Paritioning Question

2015-09-08 Thread Mike Wright
all at the end and writing them all at once. I am using a groupBy against the filtered RDD the get the grouping I want, but apparently this may not be the most efficient way, and it seems that everything is always in a single partition under this scenario. ___ *Mike Wright* Principal