### What is this PR for?
For now, python test is missing in travis, this PR enable it. But we have to disable some test, because some test will fail, I will fix them in a followup ticket.
### What type of PR is it?
[Bug Fix]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://jira.apache.org/jira/browse/ZEPPELIN-4234
### How should this be tested?
* CI pass
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Jeff Zhang <zjffdu@apache.org>
Closes#3408 from zjffdu/ZEPPELIN-4234 and squashes the following commits:
42d6877aa [Jeff Zhang] ZEPPELIN-4234. Python test is missing in travis
### What is this PR for?
By using the Raft protocol, multiple Zeppelin-Server groups are built into a Zeppelin cluster, the cluster State Machine is maintained through the Raft protocol, and the services in the cluster are agreed upon. The Zeppelin-Server and Zeppelin-Interperter services and processes are stored in the Cluster MetaData. Metadata information;
### What type of PR is it?
[Feature]
### Todos
* [x] add raft algorithm atomix jar
* [x] add cluster state machine
* [x] add state machine query command
* [x] add state machine delete command
* [x] add state machine put command
* [x] Isolate the netty JAR package introduced by atomix
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-3610
### How should this be tested?
[CI pass](https://travis-ci.org/liuxunorg/zeppelin/builds/418742522)
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? Yes
Author: liuxunorg <33611720@qq.com>
Author: Jeff Zhang <zjffdu@gmail.com>
Closes#3183 from liuxunorg/ZEPPELIN-3610 and squashes the following commits:
c899b151f [liuxunorg] uncomment maven-dependency-plugin.
af728bd2c [liuxunorg] add more doc to explain this class's responsibility.
d268ee72e [Jeff Zhang] fix test (#2)
97f17acac [liuxunorg] Cluster Raft module design
### What is this PR for?
This PR is trying to remove the code duplication between PySparkInterpreter and PythonInterpreter. So here's the main things this PR did:
* PySparkInterpreter extends PythonInterpreter
* PySparkInterpreterTest extends PythonInterpreterTest so that we can verify PySparkInterpreter can do whatever PythonInterpreter can do
* Move interpreter/lib/python/backend_zinline.py and interpreter/lib/python/mpl_config.py into python module, so that python module can ship these resources together.
### What type of PR is it?
[ Improvement | Refactoring]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-3375
### How should this be tested?
* CI pass
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Jeff Zhang <zjffdu@apache.org>
Closes#2919 from zjffdu/ZEPPELIN-3375 and squashes the following commits:
738c6c5 [Jeff Zhang] ZEPPELIN-3375. Make PySparkInterpreter extends PythonInterpreter
### What is this PR for?
Unify the ZeppelinContext of PythonInterpreter & IPythonInterpreter into one file to avoid code duplication.
### What type of PR is it?
[Refactoring]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-3362
### How should this be tested?
* CI pass
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Jeff Zhang <zjffdu@apache.org>
Closes#2890 from zjffdu/ZEPPELIN-3362 and squashes the following commits:
b5dcbc9 [Jeff Zhang] ZEPPELIN-3362. Unify ZeppelinContext of PythonInterpreter & IPythonInterpreter
### What is this PR for?
This is the first step for implement IPython Interpreter in Zeppelin. I just use the jupyter_client to create and manage the ipython kernel. We don't need to care about python compilation and execution, all the things are delegated to ipython kernel. Ideally all the features of ipython should be available in Zeppelin as well.
For now, user can use %python.ipython for IPython Interpreter. And if ipython is available, the default python interpreter will use ipython. But user can still set `zeppelin.python.useIPython` as false to enforce to use the old implementation of python interpreter.
Main features:
* IPython interpreter support
** All the ipython features are available, including visualization, ipython magics.
* ZeppelinContext support
* Streaming output support
* Support Ipython in PySpark
Regarding the visualization, ideally all the visualization libraries work in jupyter should also work here.
In unit test, I only verify the following 3 popular visualization library. could add more later.
* matplotlib
* bokeh
* ggplot
### What type of PR is it?
[Feature ]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-2753
### How should this be tested?
Unit test is added.
### Screenshots (if appropriate)
Verify bokeh in IPython Interpreter
Verify matplotlib
Verify ZeppelinContext
Verify Streaming
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
Author: Jeff Zhang <zjffdu@apache.org>
Closes#2474 from zjffdu/ZEPPELIN-2753 and squashes the following commits:
e869f31 [Jeff Zhang] address comments
b0b5c95 [Jeff Zhang] [ZEPPELIN-2753] Basic Implementation of IPython Interpreter
