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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5080) Create a memory-managed version of the External Sort operator
Date Mon, 06 Feb 2017 23:20:41 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15854935#comment-15854935
] 

ASF GitHub Bot commented on DRILL-5080:
---------------------------------------

Github user paul-rogers commented on a diff in the pull request:

    https://github.com/apache/drill/pull/717#discussion_r99250032
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/managed/SpillSet.java
---
    @@ -0,0 +1,261 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + * http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +package org.apache.drill.exec.physical.impl.xsort.managed;
    --- End diff --
    
    Good idea. Done.


> Create a memory-managed version of the External Sort operator
> -------------------------------------------------------------
>
>                 Key: DRILL-5080
>                 URL: https://issues.apache.org/jira/browse/DRILL-5080
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.8.0
>            Reporter: Paul Rogers
>            Assignee: Paul Rogers
>             Fix For: 1.10.0
>
>         Attachments: ManagedExternalSortDesign.pdf
>
>
> We propose to create a "managed" version of the external sort operator that works to
a clearly-defined memory limit. Attached is a design specification for the work.
> The project will include fixing a number of bugs related to the external sort, include
as sub-tasks of this umbrella task.



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