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From "Cheolsoo Park (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3471) Add a base abstract class for ExecutionEngine
Date Fri, 20 Sep 2013 15:17:52 GMT

     [ https://issues.apache.org/jira/browse/PIG-3471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Cheolsoo Park updated PIG-3471:
-------------------------------

    Attachment: PIG-3471-1.patch

Attached includes the following changes:
# Adds HExecutionEngine abstract class to o.a.p.backend.hadoop.executionengine.
# Moves MRExecutionEngine from o.a.p.backend.hadoop.executionengine to o.a.p.backend.hadoop.executionengine.mapReduceLayer.
# Converts some utility functions to public static functions in Utils.java.
                
> Add a base abstract class for ExecutionEngine
> ---------------------------------------------
>
>                 Key: PIG-3471
>                 URL: https://issues.apache.org/jira/browse/PIG-3471
>             Project: Pig
>          Issue Type: Sub-task
>          Components: tez
>    Affects Versions: tez-branch
>            Reporter: Cheolsoo Park
>            Assignee: Cheolsoo Park
>             Fix For: tez-branch
>
>         Attachments: PIG-3471-1.patch
>
>
> While implementing TezExecutionEngine, I realized that a lot of code can be shared between
MRExecutionEngine and TezExecutionEngine because both use the common Hadoop framework (hdfs,
resource manager, etc). So it would make sense to create a base abstract class for them (called
HExecutionEngine) and have them inherit common methods and fields from it.

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