[jira] [Created] (ZEPPELIN-2368) Option to run all paragraphs *sequentially*

["Ruslan Dautkhanov (JIRA)" <ji...@apache.org>]

Ruslan Dautkhanov created ZEPPELIN-2368:
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             Summary: Option to run all paragraphs *sequentially*
                 Key: ZEPPELIN-2368
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-2368
             Project: Zeppelin
          Issue Type: Improvement
          Components: Core, zeppelin-server
    Affects Versions: 0.7.1, 0.8.0
            Reporter: Ruslan Dautkhanov


A user on zeppelin's user email list:
{quote}
I often have notebooks that have a %sh as the 1st paragraph. This scps some file from another server, and then a number of spark or sparksql paragraphs are after that.

If I click on the run-all paragraphs at the top of the notebook the 1st %sh paragraph kicks off as expected, but the 2nd %spark notebook starts too at the same time. The others go into pending state and then start once the spark one has completed.

Is this a bug? Or am I doing something wrong?
{quote}

Quoting [~moon]
{quote}
That's expected behavior at the moment. The reason is

Each interpreter has it's own scheduler (either FIFO, Parallel), and run-all just submit all paragraphs into target interpreter's scheduler.

I think we can add feature such as run-all-sequentially.
{quote}




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