[jira] [Commented] (QUICKSTEP-107) Implement concurrent query support

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/QUICKSTEP-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16264613#comment-16264613 ] 

ASF GitHub Bot commented on QUICKSTEP-107:
------------------------------------------

GitHub user hbdeshmukh opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/325

    DO NOT MERGE: Concurrent queries transactions

    Hello,
    
    This PR has some skeleton code for basic transactional queries support in quickstep. This PR follows the design proposed in the presentation attached with https://issues.apache.org/jira/browse/QUICKSTEP-107. 


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

    $ git pull https://github.com/hbdeshmukh/incubator-quickstep concurrent-queries-transactions

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

    https://github.com/apache/incubator-quickstep/pull/325.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 #325
    
----
commit 18692dbb6d6679aab89e503d388a5fc57889e811
Author: Harshad Deshmukh <hb...@apache.org>
Date:   2017-11-16T16:27:28Z

    Initial commit for APIs
    
    - CompatabilityChecker base class in transaction checks the
      compatability of an incoming transaction with other running
      transactions.
    - AdmissionControl base class decides whether to admit or waitlist an
      incoming transaction.
    - QueryHandle class provides a method to list all the base relations
      referenced in a transaction.

commit 8f94489a8403c91110b454c7f93306d6c5d8fc57
Author: Harshad Deshmukh <hb...@apache.org>
Date:   2017-11-20T17:02:33Z

    Added more APIs to acquire locks
    
    - Locks can be on CatalogRelation as well as individual blocks.

----


> Implement concurrent query support
> ----------------------------------
>
>                 Key: QUICKSTEP-107
>                 URL: https://issues.apache.org/jira/browse/QUICKSTEP-107
>             Project: Apache Quickstep
>          Issue Type: New Feature
>          Components: Query Execution
>            Reporter: Harshad Deshmukh
>         Attachments: Concurrent-queries-design.pptx
>
>
> This feature is an implementation of the ideas proposed in the paper "Adaptive Concurrent Query Execution Framework for an Analytical In-Memory Database System" that appeared in IEEE BigData Congress 2017. This feature will be broken in several smaller components and pull requests.



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