Hi Team ,
we are planning to upgrade Hive server 1.2 to 2.0 basically we are migrating from HDP 2.4.2 to HDP 2.5
Are there any compatability issues ,any pit falls whihc we should take care .
Any data limits.
they are talking about 25 X faster !! really ?
Please let me know your inputs ..
Hive 2.0 is in tech preview for HDP 2.5. The performance gain is due to LLAP which leverages persistent, distributed cache. http://hortonworks.com/blog/llap-enables-sub-second-sql-hadoop/
You enable LLAP by setting the Interactive query setting to "Yes" under the Hive config settings. This will setup an additional HiveServer 2 instance. You can run both Hive 1.2 and 2.0 on the same instance.
Please try it out. We'd love to hear your feedback.