GitHub user zjffdu opened a pull request:
https://github.com/apache/zeppelin/pull/2455
ZEPPELIN-1515. Notebook: HDFS as a backend storage (Read & Write Mode)
### What is this PR for?
This PR is trying to add hdfs as another implementation for `NotebookRepo`.
There's another PR about using webhdfs to implement that. Actually hdfs client
library is compatibility cross major versions. See
http://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/Compatibility.html#Wire_compatibility
This PR is also required for HA of zeppelin, so that multiple zeppelin
instances can share notes via hdfs. Besides I add hadoop-client in pom file.
So zeppelin will package hadoop client jar into its binary distribution. This
is because zeppelin may be installed in a gateway machine where no hadoop is
installed (only hadoop configuration file is existed in this machine)
### What type of PR is it?
[Feature]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-1515
### How should this be tested?
Unit test is added. Also manually verify it in a single node cluster.
### 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-1515
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2455.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 #2455
----
commit 2857369734d8eb698cde2286c49fdccfd6ed2eea
Author: Jeff Zhang <zjf...@apache.org>
Date: 2017-06-30T06:48:22Z
ZEPPELIN-1515. Notebook: HDFS as a backend storage (Read & Write Mode)
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