From: Noah Watkins <noahwatkins@gmail.com>
Date: Sun, 24 Mar 2013 18:22:11 +0000 (-0700)
Subject: doc: update Hadoop docs with plugin download
X-Git-Tag: v0.67-rc1~81^2
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=6ef48c7ec2a54cf68023851e573fd1e7c19b4d8e;p=ceph.git

doc: update Hadoop docs with plugin download

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
---

diff --git a/doc/cephfs/hadoop.rst b/doc/cephfs/hadoop.rst
index 8c29376269ec8..fc3f3000fb0d7 100644
--- a/doc/cephfs/hadoop.rst
+++ b/doc/cephfs/hadoop.rst
@@ -2,18 +2,17 @@
 Using Hadoop with CephFS
 ========================
 
-The Ceph file system can be used in place of HDFS in a Hadoop installation
-by using the Ceph file system client Java package, and requires no changes to
-the Hadoop code base.
-
-The Apache Hadoop project is a framework for building data-intensive
-applications. Applications built for the Hadoop framework include MapReduce,
-HBase, Hive, Mahout, and many others. Data management in Hadoop is handled by
-a distributed file system, and the default file system supported by Hadoop is
-the Hadoop Distributed File System (HDFS). However, Hadoop is not restricted
-to using HDFS, and any alternative file system can be used with Hadoop by
-plugging in a different implementation of the Hadoop virtual file system
-layer.
+The Ceph file system can be used as a drop-in replacement for the Hadoop File
+System (HDFS). This page describes the installation and configuration process
+of using Ceph with Hadoop.
+
+Dependencies
+============
+
+* CephFS Java Interface
+* Hadoop CephFS Plugin
+
+.. important:: Currently requires Hadoop 1.1.X stable series
 
 Installation
 ============
@@ -23,8 +22,6 @@ Ceph installation is required. The details of setting up a Ceph cluster and
 the file system are beyond the scope of this document. Please refer to the
 Ceph documentation for installing Ceph.
 
-.. important:: The master branch is currently required for compatibility.
-
 The remaining two requirements are a Hadoop installation, and the Ceph file
 system Java packages, including the Java CephFS Hadoop plugin. The high-level
 steps are two add the dependencies to the Hadoop installation ``CLASSPATH``,
@@ -33,8 +30,7 @@ and configure Hadoop to use the Ceph file system.
 CephFS Java Packages
 --------------------
 
-* CephFS Java package is located
-* CephFS Hadoop plugin is located
+* CephFS Hadoop plugin (`hadoop-cephfs.jar <http://ceph.com/download/hadoop-cephfs.jar>`_)
 
 Adding these dependencies to a Hadoop installation will depend on your
 particular deployment. In general the dependencies must be present on each
@@ -57,7 +53,7 @@ These options are intended to be set in the Hadoop configuration file
 |Property             |Value                     |Notes                       |
 |                     |                          |                            |
 +=====================+==========================+============================+
-|fs.default.name      |Ceph URI                  |ceph://[monaddr:port][/root]|
+|fs.default.name      |Ceph URI                  |ceph://[monaddr:port]/      |
 |                     |                          |                            |
 |                     |                          |                            |
 +---------------------+--------------------------+----------------------------+