=========
webhdfspy

.. image:: https://badge.fury.io/py/webhdfspy.svg
:target: http://badge.fury.io/py/webhdfspy

A Python 2/3 wrapper library to access Hadoop WebHDFS REST API <https://hadoop.apache.org/docs/r1.0.4/webhdfs.html>_

Installation

To install webhdfspy from PyPI::

$ pip install webhdfspy

Python versions

webhdfspy supports Python 2.7 and 3.4

Usage

::

>>> import webhdfspy
>>> webHDFS = webhdfspy.WebHDFSClient("localhost", 50070, "username")
>>> print(webHDFS.listdir('/'))
[]
>>> webHDFS.mkdir('/foo')
True
>>> print(webHDFS.listdir('/'))
[{u'group': u'supergroup', u'permission': u'755', u'blockSize': 0, u'accessTime': 0, u'pathSuffix': u'foo', u'modificationTime': 1429805040695, u'replication': 0, u'length': 0, u'childrenNum': 0, u'owner': u'username', u'storagePolicy': 0, u'type': u'DIRECTORY', u'fileId': 16387}]
>>> print webHDFS.create('/foo/foo.txt', "just put some text here", True)
True
>>> print webHDFS.open('/pywebhdfs_test/foo.txt') 
just put some text here
>>> webHDFS.remove('/foo')
True
>>> print(webHDFS.listdir('/'))
[]

Documentation

http://webhdfspy.readthedocs.org/en/latest/

Hadoop configuration

To enable WebHDFS in Hadoop add this to your $HADOOP_DIR/conf/hdfs-site.xml: ::

    <property>
         <name>dfs.webhdfs.enabled</name>
         <value>true</value>
    </property>  

To enable append on HDFS you need to configure your hdfs-site.xml as follows: ::

    <property>
        <name>dfs.support.append</name>
        <value>true</value>
    </property>

More about WebHDFS: https://hadoop.apache.org/docs/r1.0.4/webhdfs.html