Added details on using Drill with JDBC Interpreter

[ramumalur]

What is this PR for?

Documentation to configure Drill using JDBC Interpreter

What type of PR is it?

Documentation

Todos

Is there a relevant Jira issue?

No. But there is related PR: https://issues.apache.org/jira/browse/ZEPPELIN-614

How should this be tested?

Screenshots (if appropriate)

Questions:

Does the licenses files need update? No
Is there breaking changes for older versions? No
Does this needs documentation? No

[AhyoungRyu]

Hi @Malur! Thanks for the documentation : )

Zeppelin is using jekyll when it builds the website. But when it renders this markdown docs to html page, an error is occured because of the %jdbc(drill) which is next to the ``` as below.

So, could you add a new line between ``` and %jdbc(drill) ?

[AhyoungRyu]

@Malur If you want to find this docs in Zeppelin documentation web page, you have to add <li><a href="{{BASE_PATH}}/interpreter/drill.html">Drill</a></li> below this line.

[jongyoul]

@Malur Thanks for the documentation, but how about improving JDBC document? It looks good by itself, but basically, because drill is using JDBC interpreter, It looks better to improve the jdbc.md. How about you?

[ramumalur]

@jongyoul Are you talking about adding sections in jdbc.md for configuring different Databases? Wouldn't the JDBC page be too lengthy, if we add all in one page ? How about adding Drill to the Supported Databases section & provide a link to this drill.md from there?

[corneadoug]

@Malur yes adding drill to the supported DB in the JDBC documentation.
However most of the content of your document is already inside the JDBC, so I doubt there is a need for a separate document

[ramumalur]

@corneadoug Sounds good.
I saw specific files for different DBs thats supported by JDBC Interpreter & added one for drill. I have deleted drill.md & updated jdbc.md accordingly.

Also, the step, informing the placement of jars in a folder & updating CLASSPATH, for configuring other drivers doesn't seem to work.

What worked for me is placing the jars under ZEPPELIN_HOME/interpreter/jdbc/. Should I raise JIRA or am I missing anything?

[minahlee]

@Malur I recently made a PR for updating Zeppelin classpath via GUI for different JDBC drivers. Please see #717

[ramumalur]

@minahlee Awesome!

[corneadoug]

LGTM

[jongyoul]

Merging if there's no more discussion

[anthonycorbacho]

👍