[GitHub] zeppelin pull request #2576: [hotfix] JDBC connection does not release when ...

[astroshim]

GitHub user astroshim opened a pull request:

    https://github.com/apache/zeppelin/pull/2576

    [hotfix] JDBC connection does not release when got exception.

    ### What is this PR for?
    This PR fixes JDBC connection release problem.
    
    for example when i run not executable command like following.
    
![image](https://user-images.githubusercontent.com/3348133/30206892-8248d1ae-94c8-11e7-9eae-a495be075892.png)
    
    new JDBC connection is made like following.
    ```
    $ netstat -an |grep EST |grep 3306 |wc -l
           1
    $ netstat -an |grep EST |grep 3306 |wc -l
           2
    $ netstat -an |grep EST |grep 3306 |wc -l
           3
    ```
    
    
    ### What type of PR is it?
    Bug Fix
    
    
    ### Questions:
    * Does the licenses files need update? No
    * Is there breaking changes for older versions? No
    * Does this needs documentation? No


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

    $ git pull https://github.com/astroshim/zeppelin fix/jdbcConnectionRelease

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

    https://github.com/apache/zeppelin/pull/2576.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 #2576
    
----
commit 88d3edb980e508e72d4cdde8e75c1005efcadda8
Author: Shim <yooji...@gmail.com>
Date:   2017-09-08T09:55:24Z

    fix jdbc connection relase issue.

commit 3ae59e9f02844445d011f682393bf359cb0a6f89
Author: Shim <yooji...@gmail.com>
Date:   2017-09-08T10:20:25Z

    fixed exception codes

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