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From hbdeshmukh <...@git.apache.org>
Subject [GitHub] incubator-quickstep pull request #219: QUICKSTEP-83 Measure memory consumpti...
Date Tue, 21 Mar 2017 21:18:26 GMT
GitHub user hbdeshmukh opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/219

    QUICKSTEP-83 Measure memory consumption of a running query

    - Methods to get memory footprints of join hash tables (for all of its
      implementations)
    - Method to get the memory consumed by the active temporary relations
      during the query execution.
    - Added methods for measuring memory consumed by hash tables used for
      aggregation.
    - AggregationOperationState can provide total memory used for a single
      aggregation node.
    - QueryContext can aggregate the memory consumed by all temporary data
      structures (e.g. join hash tables, aggregation hash tables).
    - QueryManagerBase provides an API to get the total memory footprint of
      a query (only implemented for single node version).
    - Mutex protection for hash join tables' list and insert destinations' list in
      the QueryContext class.

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

    $ git pull https://github.com/hbdeshmukh/incubator-quickstep query-memory-measurement

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

    https://github.com/apache/incubator-quickstep/pull/219.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 #219
    
----
commit 1eac14ec46b76a227c096b88d482c6eda21d6846
Author: Harshad Deshmukh <hbdeshmukh@apache.org>
Date:   2017-03-21T19:53:38Z

    Measure memory consumption of a running query
    
    - Methods to get memory footprints of join hash tables (for all of its
      implementations)
    - Method to get the memory consumed by the active temporary relations
      during the query execution.
    - Added methods for measuring memory consumed by hash tables used for
      aggregation.
    - AggregationOperationState can provide total memory used for a single
      aggregation node.
    - QueryContext can aggregate the memory consumed by all temporary data
      structures (e.g. join hash tables, aggregation hash tables).
    - QueryManagerBase provides an API to get the total memory footprint of
      a query (only implemented for single node version).
    - Mutex protection for hash join tables' list and insert destinations' list in
      the QueryContext class.

----


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