Re: MERGE performances issue

2018-05-24 Thread Sungwoo Park 
Hive-MR3 could be a solution for you. It supports everything that you
mention in the previous post. I have written a blog article discussing the
pros and cons of Hive-MR3 with respect to Hive-LLAP.

https://mr3.postech.ac.kr/blog/2018/05/19/comparison-hivemr3-llap/

--- Sungwoo

On Thu, May 10, 2018 at 4:44 AM, Nicolas Paris  wrote:

>
> ​True. I was using hive 1.2.1. Then I tested HIVE 2.10.​ The point is I am
> quite unclear​ on if HIVE 2.X is equivalent to
> HIVE LLAP or not. My concern with HIVE LLAP is I cannot use it combined
> with Kerberos security since the LLAP daemon
> is hosted by HIVE, and apparently cannot do "doAs" to impersonate other
> users.
>
> If there is a way to use HIVE 2.X without LLAP and benefit from all the
> feature unless in memory computation, that would be
> a good point to me.
>
>

Announce: Hive-MR3 0.2

2018-05-24 Thread Sungwoo Park 
Hello Hive users,

I am pleased to announce the release of Hive-MR3 0.2.

Hive-MR3 now supports LLAP I/O. I have published a blog article that
compares the stability and performance of Hive-MR3 and Hive-LLAP:
https://mr3.postech.ac.kr/blog/2018/05/19/comparison-hivemr3-llap/

>From the blog article, the pros of Hive-MR3 with respect to Hive-LLAP are:
1. Higher stability
2. Faster execution
3. Elastic allocation of cluster resources
4. Support for hive.server2.enable.doAs=true
7. Better support for concurrency

You can download Hive-MR3 0.2 at:
https://mr3.postech.ac.kr/download/home/

Any comment on Hive-MR3 0.2 will be appreciated. Thanks a lot!

--- Sungwoo