GitHub user prabhjyotsingh reopened a pull request:
https://github.com/apache/zeppelin/pull/2529
[ZEPPELIN-1515] Use Hadoop-FileSystem api to implement NotebookRepo
### What is this PR for?
With this PR, I attempt to use Hadoop-filesystem API to implement
`NotebookRepo`, which in my opinion is very generic in nature, as with this we
will be able to support multiple scheme of the URI like local file system
`file:///`, Hadoop file system `hdfs://localhost:8020`, S3 etc. So far I have
tested this only with local and HDFS.
### What type of PR is it?
[Improvement]
### Todos
* [ ] - Periodic refresh of kerberos ticket.
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-1515
### How should this be tested?
In zeppelin-site.xml enable these two configs; to write into HDFS.
```
<property>
<name>zeppelin.notebook.storage</name>
<value>org.apache.zeppelin.notebook.repo.HDFSNotebookRepo</value>
<description>notebook persistence layer implementation</description>
</property>
<property>
<name>zeppelin.hadoop.uri</name>
<value>hdfs://localhost:8020</value>
<description>The scheme of the URI determines a configuration property
name, fs.scheme.class whose value names the FileSystem class.
e.g. `hdfs://localhost:8020`, or `file:///`
</description>
</property>
```
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need an update? N/A
* Is there breaking changes for older versions? N/A
* Does this needs documentation? Yes
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/prabhjyotsingh/zeppelin ZEPPELIN-1515
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2529.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 #2529
----
commit 3001e12d211adfa2db2c406fcfaa08ff7667212d
Author: Prabhjyot Singh <prabhjyotsi...@gmail.com>
Date: 2017-08-14T20:41:22Z
use Hadoop-FileSystem api to implement NotebookRepo
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