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Posted to issues@ignite.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/07/11 16:28:00 UTC

[jira] [Commented] (IGNITE-5571) Make sure that cache-less execution works as good as cache-based

    [ https://issues.apache.org/jira/browse/IGNITE-5571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16082465#comment-16082465 ] 

ASF GitHub Bot commented on IGNITE-5571:
----------------------------------------

GitHub user alexpaschenko opened a pull request:

    https://github.com/apache/ignite/pull/2283

    IGNITE-5571

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gridgain/apache-ignite ignite-5571

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/ignite/pull/2283.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2283
    
----
commit 5aa613a4caa13250f4db19beb62f5c30e944be3b
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-07T17:08:23Z

    IGNITE-5571 Started refactoring.

commit df84a95b703146e0414246243e08b43a1ac9ea7f
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-09T22:32:15Z

    IGNITE-5571 Refactoring continued.

commit c5966dd33e12d9e1855c165854b965a8633b1869
Author: Andrey Novikov <an...@gridgain.com>
Date:   2017-07-11T10:02:56Z

    IGNITE-5726 Web Console: Fixed duplication of dependencies in maven project.

commit bbf55dde32d42162206a616308dd8509af0b8479
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-11T10:13:57Z

    IGNITE-5571 Refactoring continued.

commit a9ae95342dd566b210fe835221214ecc67e6ed16
Author: Pavel Tupitsyn <pt...@apache.org>
Date:   2017-07-11T11:13:14Z

     IGNITE-5446 Always use late affinity assignment mode - fix .NET tests

commit 1942db3af6538e6d1f0731b52eda94071f533ccb
Author: Pavel Tupitsyn <pt...@apache.org>
Date:   2017-07-11T11:23:56Z

    .NET: Fix code analysis warnings for deprecated IsLateAffinityAssignment

commit 1b2f5052ed34776d14d7614812b78e0aa66c69b1
Author: Ivan Rakov <iv...@gmail.com>
Date:   2017-07-11T11:19:14Z

    Visor fails to connect to secure grid

commit e9f194a328b1704a7881f1bf1a148a3426cd1b53
Author: Alexey Kuznetsov <ak...@apache.org>
Date:   2017-07-11T12:16:06Z

    ignite-2.1 Improved web-console primitives.

commit 914fdc7b83ea5e73d2ee665fbb32bfdedc5e2dc7
Author: Alexey Kuznetsov <ak...@apache.org>
Date:   2017-07-11T12:16:58Z

    ignite-2.1 Web Console: improved demo.

commit 66ccf8594cc6de74c3d87620bc3c85cd86b571fa
Author: Alexey Kuznetsov <ak...@apache.org>
Date:   2017-07-11T12:17:48Z

    ignite-2.1 Minor update of generated classnames.

commit 2c737f0c6f42e983606e70faab5e9e6336b0a241
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-11T12:23:26Z

    IGNITE-5711: Allowed to run queries on caches without query entities. This closes #2264.

commit a0b56442365bad1100b078da33f00beb6a844cf0
Author: Sergey Chugunov <se...@gmail.com>
Date:   2017-07-11T12:59:16Z

    Minor fix - stopping nodes after test

commit 28ba989d7d864a8181cd9634a7d632a6cf38bb7e
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-11T16:25:05Z

    IGNITE-5571 Refactoring (almost) finished

commit 54f3b92872faa6447049190e119c0179b6439f30
Author: Alexander Paschenko <al...@gmail.com>
Date:   2017-07-11T16:25:56Z

    Merge remote-tracking branch 'origin/ignite-2.1.2' into ignite-5571

----


> Make sure that cache-less execution works as good as cache-based
> ----------------------------------------------------------------
>
>                 Key: IGNITE-5571
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5571
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>            Reporter: Vladimir Ozerov
>            Assignee: Alexander Paschenko
>            Priority: Critical
>             Fix For: 2.2
>
>
> Compare the following two methods:
> 1) {{GridQueryProcessor.querySqlFields}} - old good entry point for query execution;
> 2) {{GridQueryProcessor.querySqlFieldsNoCache}} - new method for "cache-less" execution.
> Note how cache context is used in the first method:
> 1) First, it helps determine whether query can be converted to "local"
> 2) Second, it gets query parallelism of current cache, and if it differs from {{1}}, then it turns on {{distributedJoins}}.
> Neither of this happens in the second implementation. Moreover, I had to throw an exception for local queries, as I didn't know how to handle them properly.
> We need to investigate and fix these two deficiencies somehow. Probably some inputs from [~sergi.vladykin] would be required, to understand what is going on.
> Our ultimate goal is to make "cache-less" execution as good as the old one.



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