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From "Hostettler, Steve" <Steve.Hostett...@wolterskluwer.com>
Subject RE: New SQL execution engine
Date Fri, 15 Nov 2019 16:59:39 GMT
Hi Roman,

Actually it does not work as I expect it. Please see https://github.com/hostettler/igniteParallelQueries
Do mvn clean install and then java -jar target/ignite-parallel-query-1.0.0-SNAPSHOT-jar-with-dependencies.jar

This demonstrates that with or without the flag the query does not return the same result.
I understand that it probably because I did not set an affinity but it is very counter-intuitive.

Am I missing something?

-----Original Message-----
From: Roman Kondakov <kondakov87@mail.ru.INVALID> 
Sent: Friday, November 15, 2019 11:46 AM
To: dev@ignite.apache.org
Subject: Re: New SQL execution engine

Hi Steve,

it is possible to execute queries in parallel even in the current engine, see docs here [1].
And of course this feature should also be available in the new engine, though it's architecture
may be changed.

[1]
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fapacheignite.readme.io%2Fv2.0%2Fdocs%2Fsql-performance-and-debugging%23query-parallelism&amp;data=02%7C01%7CSteve.Hostettler%40wolterskluwer.com%7C2b752425baeb422af60408d769b9159d%7C8ac76c91e7f141ffa89c3553b2da2c17%7C0%7C0%7C637094115967087030&amp;sdata=eN7b2RCJegg8J9KQVK6TIFhcS6NG7j5pWKFxX9GWyYk%3D&amp;reserved=0


-- 
Kind Regards
Roman Kondakov

On 15.11.2019 12:53, steve.hostettler@gmail.com wrote:
> Dear all,
>
> would it be possible to also have then // execution of sql queries on single
> node with that approach?
> My understanding is that, for the moment, the SQL queries a re
> single-threaded for a given node if there is no affinity.
>
> Best Regards
>
>
>
> --
> Sent from: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fapache-ignite-developers.2346864.n4.nabble.com%2F&amp;data=02%7C01%7CSteve.Hostettler%40wolterskluwer.com%7C2b752425baeb422af60408d769b9159d%7C8ac76c91e7f141ffa89c3553b2da2c17%7C0%7C0%7C637094115967087030&amp;sdata=jXtLMt2dWYqM4KcRFkw4lby6K0o8glKnrLFgxZ96LbQ%3D&amp;reserved=0
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