[GitHub] incubator-zeppelin pull request: Add a (local mode) Scalding Inter...

[sriramkrishnan]

GitHub user sriramkrishnan opened a pull request:

    https://github.com/apache/incubator-zeppelin/pull/561

    Add a (local mode) Scalding Interpreter to Zeppelin

    ### What is this PR for?
    Scalding (https://github.com/twitter/scalding) is a Scala library for 
writing MapReduce jobs.
    This issue tracks the addition of a Scalding interpreter for Zeppelin. To 
keep this work incremental, this PR will focus on just a local mode 
implementation. The Hadoop mode can be a subsequent addition.
    
    ### What type of PR is it?
    Feature
    
    ### Todos
    * Addition of Hadoop mode for Scalding
    
    ### Is there a relevant Jira issue?
    https://issues.apache.org/jira/browse/ZEPPELIN-526
    
    ### How should this be tested?
    Run the tests in: 
scalding/src/test/java/org/apache/zeppelin/scalding/ScaldingInterpreterTest.java
    
    ### Screenshots
    <img width="1167" alt="scalding-example" 
src="https://cloud.githubusercontent.com/assets/1509691/11944979/8788d5c2-a7ff-11e5-9863-2a1216c51896.png";>
    <img width="1151" alt="scalding-screenshot" 
src="https://cloud.githubusercontent.com/assets/1509691/11944978/8787e3ec-a7ff-11e5-8383-456adb16b977.png";>
    
    
    ### Questions:
    * This could use documentation, which could just be the example in the 
screenshot. Where can I contribute that?

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

    $ git pull https://github.com/sriramkrishnan/incubator-zeppelin scalding

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

    https://github.com/apache/incubator-zeppelin/pull/561.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 #561
    
----
commit 721dcb7bcfbc56d923c101e5b701cd9c2ad23372
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-17T03:34:17Z

    Getting a basic interpreter going. Next step is to hook in the Scalding 
REPL.

commit 35fc032d7e6cc679cf3604f44cf6ba4a3545a53b
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-17T21:22:52Z

    Initial version of a ScaldingInterpreter running in local mode. Need to get 
console output next.
    And add tests, and make it work for HDFS.

commit e13576fcfea4fb86f8fafd46df716d2d50ef0b3c
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-17T22:35:53Z

    Now seem to be getting the console out, but only for last line. Will need 
some debugging.

commit b19fda41b586486e315f9dc6eaa3a71e4ecf7632
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-18T00:20:02Z

    More cleanup - flushing output stream. Still can't seem to get the Scala 
console output. Need to figure that out.

commit 1ffbb3b2d70d57ff65d0d43ef7f02defe263ac41
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-18T05:00:13Z

    Fixing output of stdout from console

commit d3916b751627b7fd02f9b583214d578236178864
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-18T05:01:02Z

    Adding modified version of ScaldingILoop for grabbing Console output - will 
want to move this to Scalding itself

commit 36a2dace020bea6bf9787778bfa6bf2ca5900132
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-18T19:58:30Z

    Added a link to the scalding code where the ILoop was lifted from.

commit 8944b0c3aebd2c4c66a12518613cb5f1724c0dee
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-21T22:08:59Z

    Merge remote-tracking branch 'upstream/master' into scalding

commit c27ec48ff73093ebfd9a71a3f0d31b9626edc91c
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-21T22:25:34Z

    Formatting, license

commit 368dc042ef71c08d3e0b5ccc879bef0b1bce2da1
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-21T23:00:25Z

    Cleaning up imports, comments, etc

commit 7ec294138078bc3a196e985a3c3f211c51fe2566
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-21T23:22:08Z

    More code cleanup

commit 7a9ceeb5b801017fb7354ef5b3d0e2b3256d7ae9
Author: Sriram Krishnan <skrish...@twitter.com>
Date:   2015-12-22T00:04:21Z

    Adding some tests for the Scalding interpreter

----


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