Ok. Turns out that if i use the same JDBC connection, each successive query from the same user gets submitted to the same Tez application. If i create a different JDBC connection for each query, then each query runs in its own Tez application.
On Tue, Dec 2, 2014 at 2:42 PM, Hitesh Shah <hit...@apache.org> wrote: > BCC’ed user@tez. > > This question belongs to either the hive user list or the Hortonworks user > forums. > > thanks > — Hitesh > > On Dec 2, 2014, at 1:28 PM, Pala M Muthaia <mchett...@rocketfuelinc.com> > wrote: > > > Hi, > > > > I am trying to get Tez sessions enabled with HS2. I start the > HiveServer2 instance with the flag "-hiveconf hive.execution.engine=tez" > and then try to submit multiple queries one after another, as the same > user, to the HS2 instance. > > > > When i check the YARN UI, i find that each query of mine is launched as > a new YARN application. While the new Tez application is running, the old > Tez applications are still alive. This is different from Tez session in > Hive CLI, where multiple queries are submitted to the same Tez application > (if launched within the Tez session timeout). > > > > > > I followed the config instructions at > http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.1.2/bk_installing_manually_book/content/rpm-chap-tez-configure_hive_for_tez.html > so far. > > > > Is there a separate config flag that i need to turn on for Tez sessions > on HS2? How should i enable Tez sessions with HiveServer2. > > > > > > -pala > >
