[GitHub] incubator-zeppelin pull request: Shell interpreter improvements

[Karuppayya]

GitHub user Karuppayya reopened a pull request:

    https://github.com/apache/incubator-zeppelin/pull/615

    Shell interpreter improvements

    ### What is this PR for?
    *Provide ability to to run  shell commands in parallel
    *Provide ability to cancel shell command
    *Propagate the error from shell commands to UI
    
    
    ### What type of PR is it?
    Improvement
    
    ### Todos
    NA
    
    ### Is there a relevant Jira issue?
    No
    
    ### How should this be tested?
    *To check parallelism, run more than 10 shell commands concurrently.
    *To verify whether error is propagate to UI, execute a shell command which 
will error out(simplest being cd of a non existent directory )
    *To verify the cancel functionality, try cancelling a shell command that is 
running.
    
    ### Screenshots (if appropriate)
    NA
    
    ### Questions:
    NA

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

    $ git pull https://github.com/Karuppayya/incubator-zeppelin shell1

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

    https://github.com/apache/incubator-zeppelin/pull/615.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 #615
    
----
commit b0a97a16ebdfa4a510e0e4cc140a098b662253e2
Author: Karup <karuppa...@outlook.com>
Date:   2016-01-08T15:46:17Z

    fix

commit 7d938bd86ee409040dfc026e549aeccce23c87d0
Author: Karup <karuppa...@outlook.com>
Date:   2016-01-08T15:46:17Z

    fix

commit 540bfa8b05d8f26d116b8e1fb6adf7c81550c431
Author: Karup <karuppa...@outlook.com>
Date:   2016-01-09T03:33:44Z

    Merge branch 'shell1' of github.com:Karuppayya/incubator-zeppelin into 
shell1

commit 30078ac7510feae18d9bf565ea6314e00bbc5214
Author: karuppayya <karuppayya1...@gmail.com>
Date:   2016-01-11T08:08:40Z

    fix

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