GitHub user khalidhuseynov opened a pull request:
https://github.com/apache/incubator-zeppelin/pull/634
fix logging to informative one
### What is this PR for?
Improving logging information on error
### What type of PR is it?
Fix/Improvement
### Todos
* [x] - fix logging
### Is there a relevant Jira issue?
May not require issue
### How should this be tested?
Can be tested with any error for storage initialization
For example:
1. in `conf/zeppelin-env.sh` add the following line
```
export
ZEPPELIN_NOTEBOOK_STORAGE="org.apache.zeppelin.notebook.repo.VFSNotebookRepo,org.apache.zeppelin.notebook.repo.DummyNotebookRepo"
```
2. Start Zeppelin
3. Previously you would see one line warning, now you would see more
detailed trace-back as well.
### Screenshots (if appropriate)
Before:
```
Failed to initialize com.nflabs.zeppelinhub.notebook.repo.DummyNotebookRepo
notebook storage class java.lang.reflect.InvocationTargetException
```
After:
```
WARN [2016-01-13 22:43:05,557] ({main} NotebookRepoSync.java[<init>]:81) -
Failed to initialize com.nflabs.zeppelinhub.notebook.repo.DummyNotebookRepo
notebook storage class
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
```
### 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/khalidhuseynov/incubator-zeppelin fix-logging
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-zeppelin/pull/634.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 #634
----
commit dd655551e7573a05d912d46b853031507d2df2d7
Author: Khalid Huseynov <khalid...@nflabs.com>
Date: 2016-01-13T13:52:06Z
fix logging to informative one
----
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