zeppelin

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[ZEPPELIN-4144] After refresh the revision tools are sometimes hidden

2

### What is this PR for? Fixes issue where after refreshing a note's page the revision controls in the navigation bar are hidden since listConfigurations is only requested in the...

florpor

[ZEPPELIN-2444] Better error message on shell timeout being reached.

4

### What is this PR for? Cue the user what the error they are getting is due to. I would get spurious timeouts, and I had no idea it was...

epugh

[ZEPPELIN-3994] Notebook serving

17

### What is this PR for? This PR implements [notebook serving](https://issues.apache.org/jira/browse/ZEPPELIN-3994) explained [here](https://docs.google.com/document/d/1YA6q8W9yO8a88xzLDYs9zv_fKu2_cnB58rmQbakxi1I/edit?usp=sharing). While this PR is already quite large, front-end implementation will have separate PR. This PR is work...

Leemoonsoo

[ZEPPELIN-4050] Zeppelin on YARN

3

### What is this PR for? Let Zeppelin all interpreter process running on YARN. - Run Zeppelin server on local host. - Run Standard interpreters as YARN (Docker) container. -...

xunliu

[ZEPPELIN-4127] There is no way to list all registered cron jobs

1

### What is this PR for? Make list all registered zeppelin's cron jobs ### What type of PR is it? [Bug Fix | Improvement | Feature | Documentation | Hot...

hyonaldo

[ZEPPELIN-4124] Use optJSONArray to avoid exception

1

### What is this PR for? Avoid unexpected JSONException if no key exist. ### What type of PR is it? [Bug Fix | Improvement | Feature | Documentation | Hot...

bd2019us

[ZEPPELIN-4031] Fixed Unable to detect that the interpreter process was killed manually

5

### What is this PR for? Zeppelin-server can't perceive, When a network exception occurs Or a state where a program exception causes the interpreter process to be unavailable, Cause the...

xunliu

[ZEPPELIN-4053]. Implement impersonation via c native api

2

### What is this PR for? This PR use a native c code to implement impersonation. The previous approach use ssh which require user to enable password-less for each user....

zjffdu

Fix abstractions. Removing Message class usage from NotebookService.

2

### What is this PR for? Removing Message class usage from NotebookService. Using DTO object in services broke abstraction. ### What type of PR is it? [Improvement | Refactoring] ###...

D01B

[ZEPPELIN-3949] Add HADOOP_CLASSPATH in ZEPPELIN_CLASSPATH when starting Zeppelin

6

### What is this PR for? Add `HADOOP_CLASSPATH` to `ZEPPELIN_CLASSPATH` when starting Zeppelin. This adds some important deps that Zeppelin may need. For instance when storing the notebooks in [Swift](https://wiki.openstack.org/wiki/Swift)...

mcapuccini