GitHub user zjffdu reopened a pull request:
https://github.com/apache/zeppelin/pull/1514
ZEPPELIN-1516. NPE LivySparkSQLInterpreter thrown with %livy.sql interpreter
### What is this PR for?
This PR fixed NPE issue in `LivySparkSQLIntepreter`, also it resolves the
multiple thread issues discussed in #1503
### What type of PR is it?
[Bug Fix]
### Todos
- [ ] - Task
### What is the Jira issue?
- https://issues.apache.org/jira/browse/ZEPPELIN-1516
### How should this be tested?
- Enable shiro
- Log in 2 users in 2 browsers
- Start livy sql paragraph at almost the same time
- 2 livy sessions are created correctly.
### Screenshots (if appropriate)
### 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/zjffdu/zeppelin ZEPPELIN-1516
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1514.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 #1514
----
commit 0b5825c6769ecb3382c4d2569380fde70d8a032b
Author: Jeff Zhang <[email protected]>
Date: 2016-10-14T01:27:52Z
ZEPPELIN-1516. NPE LivySparkSQLInterpreter thrown with %livy.sql interpreter
commit fc5692df27ed4d2313b0c0d43bcc26f11efab5f3
Author: Jeff Zhang <[email protected]>
Date: 2016-10-27T05:38:03Z
add test
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