Author: stack
Date: Tue Nov 10 05:05:01 2009
New Revision: 834344
URL: http://svn.apache.org/viewvc?rev=834344&view=rev
Log:
HBASE-1904 Add tutorilal for installing HBase on Windows using Cygwin as a test
and development environment
Added:
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/cygwin.xml
Modified:
hadoop/hbase/branches/0.20/CHANGES.txt
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/site.xml
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/tabs.xml
hadoop/hbase/branches/0.20/src/java/overview.html
Modified: hadoop/hbase/branches/0.20/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/CHANGES.txt?rev=834344&r1=834343&r2=834344&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/CHANGES.txt (original)
+++ hadoop/hbase/branches/0.20/CHANGES.txt Tue Nov 10 05:05:01 2009
@@ -56,6 +56,8 @@
you end up with lots of store files
HBASE-1867 Tool to regenerate an hbase table from the data files
HBASE-1829 Make use of start/stop row in TableInputFormat
+ HBASE-1904 Add tutorial for installing HBase on Windows using Cygwin as a
+ test and development environment (Wim Van Leuven via Stack)
HBASE-1968 Give clients access to the write buffer
Release 0.20.1 - Released October 12th, 2009
Added:
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/cygwin.xml
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/cygwin.xml?rev=834344&view=auto
==============================================================================
---
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/cygwin.xml
(added)
+++
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/cygwin.xml
Tue Nov 10 05:05:01 2009
@@ -0,0 +1,254 @@
+<?xml version="1.0"?>
+<!--
+ Copyright 2002-2008 The Apache Software Foundation
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V2.0//EN"
+ "http://forrest.apache.org/dtd/document-v20.dtd";>
+
+
+<document>
+ <header>
+ <title>Installing HBase on Windows using Cygwin</title>
+ </header>
+
+<body>
+<section>
+<title>Introduction</title>
+<p><a title="HBase project" href="http://hadoop.apache.org/hbase";
target="_blank">HBase</a> is a distributed, column-oriented store, modeled
after Google's <a title="Google's BigTable"
href="http://labs.google.com/papers/bigtable.html";
target="_blank">BigTable</a>. HBase is built on top of <a title="Hadoop
project" href="http://hadoop.apache.org";>Hadoop</a> for its <a title="Hadoop
MapReduce project" href="http://hadoop.apache.org/mapreduce";
target="_blank">MapReduce </a>and <a title="Hadoop DFS project"
href="http://hadoop.apache.org/hdfs";>distributed file system</a>
implementation. All these projects are open-source and part of the <a
title="The Apache Software Foundation" href="http://www.apache.org/";
target="_blank">Apache Software Foundation</a>.</p>
+
+<p style="text-align: justify; ">As being distributed, large scale platforms,
the Hadoop and HBase projects mainly focus on
<em><strong>*nix</strong></em><strong> environments</strong> for production
installations. However, being developed in <strong>Java</strong>, both projects
are fully <strong>portable</strong> across platforms and, hence, also to the
<strong>Windows operating system</strong>. For ease of development the projects
rely on <a title="Cygwin site" href="http://www.cygwin.com/";
target="_blank">Cygwin</a> to have a *nix-like environment on Windows to run
the shell scripts.</p>
+</section>
+<section>
+<title>Purpose</title>
+<p style="text-align: justify; ">This document explains the
<strong>intricacies of running HBase on Windows using Cygwin</strong> as an
all-in-one single-node installation for testing and development. The HBase <a
title="HBase Overview"
href="http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#overview_description";
target="_blank">Overview</a> and <a title="HBase QuickStart"
href="http://hadoop.apache.org/common/docs/current/quickstart.html";
target="_blank">QuickStart</a> guides on the other hand go a long way in
explaning how to setup <a title="HBase project"
href="http://hadoop.apache.org/hbase"; target="_blank">HBase</a> in more complex
deployment scenario's.</p>
+</section>
+
+<section>
+<title >Installation</title>
+<p style="text-align: justify; ">For running HBase on Windows, 3 technologies
are required: <strong>Java, Cygwin and SSH</strong>. The following paragraphs
detail the installation of each of the aforementioned technologies.</p>
+<section>
+<title>Java</title>
+<p style="text-align: justify; ">HBase depends on the <a title="Java Platform,
Standard Edition, 6 Release" href="http://java.sun.com/javase/6/";
target="_blank">Java Platform, Standard Edition, 6 Release</a>. So the target
system has to be provided with at least the Java Runtime Environment (JRE);
however if the system will also be used for development, the Jave Development
Kit (JDK) is preferred. You can download the latest versions for both from <a
title="Java SE Downloads" href="http://java.sun.com/javase/downloads/index.jsp";
target="_blank">Sun's download page</a>. Installation is a simple GUI wizard
that guides you through the process.</p>
+</section>
+<section>
+<title>Cygwin</title>
+<p style="text-align: justify; ">Cygwin is probably the oddest technology in
this solution stack. It provides a dynamic link library that emulates most of a
*nix environment on Windows. On top of that a whole bunch of the most common
*nix tools are supplied. Combined, the DLL with the tools form a very
*nix-alike environment on Windows.</p>
+
+<p style="text-align: justify; ">For installation, Cygwin provides the <a
title="Cygwin Setup Utility" href="http://cygwin.com/setup.exe";
target="_blank"><strong><code>setup.exe</code> utility</strong></a> that tracks
the versions of all installed components on the target system and provides the
mechanism for <strong>installing</strong> or <strong>updating
</strong>everything from the mirror sites of Cygwin.</p>
+
+<p style="text-align: justify; ">To support installation, the
<code>setup.exe</code> utility uses 2 directories on the target system. The
<strong>Root</strong> directory for Cygwin (defaults to <code>C:\cygwin)</code>
which will become <code>/</code> within the eventual Cygwin installation; and
the <strong>Local Package </strong>directory (e.g. <code>C:\cygsetup</code>
that is the cache where <code>setup.exe</code> stores the packages before they
are installed. The cache must not be the same folder as the Cygwin root.</p>
+
+<p style="text-align: justify; ">Perform following steps to install Cygwin,
which are elaboratly detailed in the <a title="Setting Up Cygwin"
href="http://cygwin.com/cygwin-ug-net/setup-net.html"; target="_self">2nd
chapter</a> of the <a title="Cygwin User's Guide"
href="http://cygwin.com/cygwin-ug-net/cygwin-ug-net.html";
target="_blank">Cygwin User's Guide</a>:</p>
+
+<ol style="text-align: justify; ">
+ <li>Make sure you have <code>Administrator</code> privileges on the
target system.</li>
+ <li>Choose and create you <strong>Root</strong> and <strong>Local
Package</strong> directories. A good suggestion is to use
<code>C:\cygwin\root</code> and <code>C:\cygwin\setup</code> folders.</li>
+ <li>Download the <code>setup.exe</code> utility and save it to the
<strong>Local Package</strong> directory.</li>
+ <li>Run the <code>setup.exe</code> utility,
+<ol>
+ <li>Choose the <code>Install from Internet</code> option,</li>
+ <li>Choose your <strong>Root</strong> and <strong>Local
Package</strong> folders</li>
+ <li>and select an appropriate mirror.</li>
+ <li>Don't select any additional packages yet, as we only want to
install Cygwin for now.</li>
+ <li>Wait for download and install</li>
+ <li>Finish the installation</li>
+</ol>
+</li>
+ <li>Optionally, you can now also add a shortcut to your Start menu
pointing to the <code>setup.exe</code> utility in the <strong>Local Package
</strong>folder.</li>
+ <li>Add <code>CYGWIN_HOME</code> system-wide environment variable that
points to your <strong>Root </strong>directory.</li>
+ <li>Add <code>%CYGWIN_HOME%\bin</code> to the end of your
<code>PATH</code> environment variable.</li>
+ <li>Reboot the sytem after making changes to the environment variables
otherwise the OS will not be able to find the Cygwin utilities.</li>
+ <li>Test your installation by running your freshly created shortcuts or
the <code>Cygwin.bat</code> command in the <strong>Root</strong> folder. You
should end up in a terminal window that is running a <a title="Bash Reference
Manual" href="http://www.gnu.org/software/bash/manual/bashref.html";
target="_blank">Bash shell</a>. Test the shell by issuing following commands:
+<ol>
+ <li><code>cd /</code> should take you to thr <strong>Root</strong>
directory in Cygwin;</li>
+ <li>the <code>LS</code> commands that should list all files and folders
in the current directory.</li>
+ <li>Use the <code>exit</code> command to end the terminal.</li>
+</ol>
+</li>
+ <li>When needed, to <strong>uninstall</strong> Cygwin you can simply
delete the <strong>Root</strong> and <strong>Local Package</strong> directory,
and the <strong>shortcuts</strong> that were created during installation.</li>
+</ol>
+</section>
+<section><title>SSH</title>
+<p style="text-align: justify; ">HBase (and Hadoop) rely on <a title="Secure
Shell" href="http://nl.wikipedia.org/wiki/Secure_Shell";
target="_blank"><strong>SSH</strong></a> for interprocess/-node
<strong>communication</strong> and launching<strong> remote commands</strong>.
SSH will be provisioned on the target system via Cygwin, which supports running
Cygwin programs as <strong>Windows services</strong>!</p>
+
+<ol style="text-align: justify; ">
+ <li>Rerun the <code><strong>setup.exe</strong></code><strong>
utility</strong>.</li>
+ <li>Leave all parameters as is, skipping through the wizard using the
<code>Next</code> button until the <code>Select Packages</code> panel is
shown.</li>
+ <li>Maximize the window and click the <code>View</code> button to
toggle to the list view, which is ordered alfabetically on
<code>Package</code>, making it easier to find the packages we'll need.</li>
+ <li>Select the following packages by clicking the status word (normally
<code>Skip</code>) so it's marked for installation. Use the <code>Next
</code>button to download and install the packages.
+<ol>
+ <li>OpenSSH</li>
+ <li>tcp_wrappers</li>
+ <li>diffutils</li>
+ <li>zlib</li>
+</ol>
+</li>
+ <li>Wait for the install to complete and finish the installation.</li>
+</ol>
+</section>
+<section>
+<title>HBase</title>
+<p style="text-align: justify; ">Download the <strong>latest release
</strong>of HBase from the <a title="HBase Releases"
href="http://hadoop.apache.org/hbase/releases.html";
target="_blank">website</a>. As the HBase distributable is just a zipped
archive, installation is as simple as unpacking the archive so it ends up in
its final <strong>installation</strong> directory. Notice that HBase has to be
installed in Cygwin and a good directory suggestion is to use
<code>/usr/local/</code> (or [<code><strong>Root</strong>
directory]\usr\local</code> in Windows slang). You should end up with a
<code>/usr/local/hbase-<em><version></em></code> installation in
Cygwin.</p>
+
+This finishes installation. We go on with the configuration.
+</section>
+</section>
+<section>
+<title>Configuration</title>
+<p style="text-align: justify; ">There are 3 parts left to configure:
<strong>Java, SSH and HBase</strong> itself. Following paragraphs explain eacht
topic in detail.</p>
+<section>
+<title>Java</title>
+<p style="text-align: justify; ">One important thing to remember in shell
scripting in general (i.e. *nix and Windows) is that managing, manipulating and
assembling path names that contains spaces can be very hard, due to the need to
escape and quote those characters and strings. So we try to stay away from
spaces in path names. *nix environments can help us out here very easily by
using <strong>symbolic links</strong>.</p>
+
+<ol style="text-align: justify; ">
+ <li style="text-align: justify; ">Create a link in
<code>/usr/local</code> to the Java home directory by using the following
command and substituting the name of your chosen Java environment:
+<pre>LN -s /cygdrive/c/Program\ Files/Java/<em><jre name>
</em>/usr/local/<em><jre name></em></pre>
+</li>
+ <li>Test your java installation by changing directories to your Java
folder <code>CD /usr/local/<em><jre name></em></code> and issueing the
command <code>./bin/java -version</code>. This should output your version of
the chosen JRE.</li>
+</ol>
+</section>
+<section>
+<title>SSH</title>
+<p style="text-align: justify; ">Configuring <strong>SSH </strong>is quite
elaborate, but primarily a question of launching it by default as a<strong>
Windows service</strong>.</p>
+
+<ol style="text-align: justify; ">
+ <li style="text-align: justify; ">On Windows Vista and above make sure
you run the Cygwin shell with <strong>elevated privileges</strong>, by
right-clicking on the shortcut an using <code>Run as Administrator</code>.</li>
+ <li style="text-align: justify; ">First of all, we have to make sure
the <strong>rights on some crucial files</strong> are correct. Use the commands
underneath. You can verify all rights by using the <code>LS -L</code> command
on the different files. Also, notice the auto-completion feature in the shell
using <code><TAB></code> is extremely handy in these situations.
+<ol>
+ <li><code>chmod +r /etc/passwd</code> to make the passwords file
readable for all</li>
+ <li><code>chmod u+w /etc/passwd</code> to make the passwords file
writable for the owner</li>
+ <li><code>chmod +r /etc/group</code> to make the groups file readable
for all</li>
+</ol>
+<ol>
+ <li><code>chmod u+w /etc/group</code> to make the groups file writable
for the owner</li>
+</ol>
+<ol>
+ <li><code>chmod 755 /var</code> to make the var folder writable to
owner and readable and executable to all</li>
+</ol>
+</li>
+ <li>Edit the <strong>/etc/hosts.allow</strong> file using your favorite
editor (why not VI in the shell!) and make sure the following two lines are in
there before the <code>PARANOID</code> line:
+<ol>
+ <li><code>ALL : localhost 127.0.0.1/32 : allow</code></li>
+ <li><code>ALL : [::1]/128 : allow</code></li>
+</ol>
+</li>
+ <li>Next we have to <strong>configure SSH</strong> by using the script
<code>ssh-host-config</code>
+<ol>
+ <li>If this script asks to overwrite an existing
<code>/etc/ssh_config</code>, answer <code>yes</code>.</li>
+ <li>If this script asks to overwrite an existing
<code>/etc/sshd_config</code>, answer <code>yes</code>.</li>
+ <li>If this script asks to use privilege separation, answer
<code>yes</code>.</li>
+ <li>If this script asks to install <code>sshd</code> as a service,
answer <code>yes</code>. Make sure you started your shell as Adminstrator!</li>
+ <li>If this script asks for the CYGWIN value, just
<code><enter></code> as the default is <code>ntsec</code>.</li>
+ <li>If this script asks to create the <code>sshd</code> account, answer
<code>yes</code>.</li>
+ <li>If this script asks to use a different user name as service
account, answer <code>no</code> as the default will suffice.</li>
+ <li>If this script asks to create the <code>cyg_server</code> account,
answer <code>yes</code>. Enter a password for the account.</li>
+</ol>
+</li>
+ <li><strong>Start the SSH service</strong> using <code>net start
sshd</code> or <code>cygrunsrv --start sshd</code>. Notice that
<code>cygrunsrv</code> is the utility that make the process run as a Windows
service. Confirm that you see a message stating that <code>the CYGWIN sshd
service was started succesfully.</code></li>
+ <li>Harmonize Windows and Cygwin<strong> user account</strong> by using
the commands:
+<ol>
+ <li><code>mkpasswd -cl > /etc/passwd</code></li>
+ <li><code>mkgroup --local > /etc/group</code></li>
+</ol>
+</li>
+ <li><strong>Test </strong>the installation of SSH:
+<ol>
+ <li>Open a new Cygwin terminal</li>
+ <li>Use the command <code>whoami</code> to verify your userID</li>
+ <li>Issue an <code>ssh localhost</code> to connect to the system itself
+<ol>
+ <li>Answer <code>yes</code> when presented with the server's
fingerprint</li>
+ <li>Issue your password when prompted</li>
+ <li>test a few commands in the remote session</li>
+ <li>The <code>exit</code> command should take you back to your first
shell in Cygwin</li>
+</ol>
+</li>
+ <li><code>Exit</code> should terminate the Cygwin shell.</li>
+</ol>
+</li>
+</ol>
+</section>
+<section>
+<title>HBase</title>
+If all previous configurations are working properly, we just need some
tinkering at the <strong>HBase config</strong> files to properly resolve on
Windows/Cygwin. All files and paths referenced here start from the HBase
<code>[<strong>installation</strong> directory]</code> as working directory.
+<ol>
+ <li>HBase uses the <code>./conf/<strong>hbase-env.sh</strong></code> to
configure its dependencies on the runtime environment. Copy and uncomment
following lines just underneath their original, change them to fit your
environemnt. They should read something like:
+<ol>
+ <li><code>export JAVA_HOME=/usr/local/<em><jre
name></em></code></li>
+ <li><code>export HBASE_IDENT_STRING=$HOSTNAME</code> as this most
likely does not inlcude spaces.</li>
+</ol>
+</li>
+ <li>HBase uses the
./conf/<code><strong>hbase-default.xml</strong></code> file for configuration.
Some properties do not resolve to existing directories because the JVM runs on
Windows. This is the major issue to keep in mind when working with Cygwin:
within the shell all paths are *nix-alike, hence relative to the root
<code>/</code>. However, every parameter that is to be consumed within the
windows processes themself, need to be Windows settings, hence
<code>C:\</code>-alike. Change following propeties in the configuration file,
adjusting paths where necessary to conform with your own installation:
+<ol>
+ <li><code>hbase.rootdir</code> must read e.g.
<code>file:///C:/cygwin/root/tmp/hbase/data</code></li>
+ <li><code>hbase.tmp.dir</code> must read
<code>C:/cygwin/root/tmp/hbase/tmp</code></li>
+ <li><code>hbase.zookeeper.quorum</code> must read
<code>127.0.0.1</code> because for some reason <code>localhost</code> doesn't
seem to resolve properly on Cygwin.</li>
+</ol>
+</li>
+ <li>Make sure the configured <code>hbase.rootdir</code> and
<code>hbase.tmp.dir</code> <strong>directories exist</strong> and have the
proper<strong> rights</strong> set up e.g. by issuing a <code>chmod 777</code>
on them.</li>
+</ol>
+</section>
+</section>
+<section>
+<title>Testing</title>
+<p>
+This should conclude the installation and configuration of HBase on Windows
using Cygwin. So it's time <strong>to test it</strong>.
+<ol>
+ <li>Start a Cygwin<strong> terminal</strong>, if you haven't
already.</li>
+ <li>Change directory to HBase <strong>installation</strong> using
<code>CD /usr/local/hbase-<em><version></em></code>, preferably using
auto-completion.</li>
+ <li><strong>Start HBase</strong> using the command
<code>./bin/start-hbase.sh</code>
+<ol>
+ <li>When prompted to accept the SSH fingerprint, answer
<code>yes</code>.</li>
+ <li>When prompted, provide your password. Maybe multiple times.</li>
+ <li>When the command completes, the HBase server should have
started.</li>
+ <li>However, to be absolutely certain, check the logs in the
<code>./logs</code> directory for any exceptions.</li>
+</ol>
+</li>
+ <li>Next we <strong>start the HBase shell</strong> using the command
<code>./bin/hbase shell</code></li>
+ <li>We run some simple <strong>test commands</strong>
+<ol>
+ <li>Create a simple table using command <code>create 'test',
'data'</code></li>
+ <li>Verify the table exists using the command <code>list</code></li>
+ <li>Insert data into the table using e.g.
+<pre>put 'test', 'row1', 'data:1', 'value1'
+put 'test', 'row2', 'data:2', 'value2'
+put 'test', 'row3', 'data:3', 'value3'</pre>
+</li>
+ <li>List all rows in the table using the command <code>scan
'test'</code> that should list all the rows previously inserted. Notice how 3
new columns where added without changing the schema!</li>
+ <li>Finally we get rid of the table by issuing <code>disable
'test'</code> followed by <code>drop 'test'</code> and verified by
<code>list</code> which should give an empty listing.</li>
+</ol>
+</li>
+ <li><strong>Leave the shell</strong> by <code>exit</code></li>
+ <li>To <strong>stop the HBase server</strong> issue the
<code>./bin/stop-hbase.sh</code> command. And wait for it to complete!!!
Killing the process might corrupt your data on disk.</li>
+ <li>In case of <strong>problems</strong>,
+<ol>
+ <li>verify the HBase logs in the <code>./logs</code> directory.</li>
+ <li>Try to fix the problem</li>
+ <li>Get help on the forums or IRC (<code>#[email protected]</code>).
People are very active and keen to help out!</li>
+ <li>Stopr, restart and retest the server.</li>
+</ol>
+</li>
+</ol>
+</p>
+</section>
+
+<section>
+<title>Conclusion</title>
+<p>
+Now your <strong>HBase </strong>server is running, <strong>start
coding</strong> and build that next killer app on this particular, but scalable
datastore!
+</p>
+</section>
+</body>
+</document>
Modified:
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/site.xml
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/site.xml?rev=834344&r1=834343&r2=834344&view=diff
==============================================================================
---
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/site.xml
(original)
+++
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/site.xml
Tue Nov 10 05:05:01 2009
@@ -36,6 +36,7 @@
<started label="Getting Started" href="ext:api/started" />
<api label="API Docs" href="ext:api/index" />
<api label="HBase Metrics" href="metrics.html" />
+ <api label="HBase on Windows" href="cygwin.html" />
<wiki label="Wiki" href="ext:wiki" />
<faq label="FAQ" href="ext:faq" />
<lists label="Mailing Lists" href="ext:lists" />
Modified:
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/tabs.xml
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/tabs.xml?rev=834344&r1=834343&r2=834344&view=diff
==============================================================================
---
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/tabs.xml
(original)
+++
hadoop/hbase/branches/0.20/src/docs/src/documentation/content/xdocs/tabs.xml
Tue Nov 10 05:05:01 2009
@@ -32,5 +32,4 @@
<tab label="Project" href="http://hadoop.apache.org/hbase/"; />
<tab label="Wiki" href="http://wiki.apache.org/hadoop/Hbase"; />
<tab label="HBase Documentation" dir="" />
-
</tabs>
Modified: hadoop/hbase/branches/0.20/src/java/overview.html
URL:
http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/java/overview.html?rev=834344&r1=834343&r2=834344&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/src/java/overview.html (original)
+++ hadoop/hbase/branches/0.20/src/java/overview.html Tue Nov 10 05:05:01 2009
@@ -109,22 +109,12 @@
</ul>
<h3><a name="windows">Windows</a></h3>
-<p>If you are running HBase on Windows, you must install <a
href="http://cygwin.com/";>Cygwin</a>.
-Additionally, it is <em>strongly recommended</em> that you add or append to
the following
-environment variables. If you install Cygwin in a location that is not
<code>C:\cygwin</code> you
-should modify the following appropriately.</p>
-
-<blockquote>
-<pre>
-HOME=c:\cygwin\home\jim
-ANT_HOME=(wherever you installed ant)
-JAVA_HOME=(wherever you installed java)
-PATH=C:\cygwin\bin;%JAVA_HOME%\bin;%ANT_HOME%\bin; other windows stuff
-SHELL=/bin/bash
-</pre>
-</blockquote>
-
-<p>For additional information, see the <a
href="http://hadoop.apache.org/common/docs/current/quickstart.html";>Hadoop
Quick Start Guide</a></p>
+If you are running HBase on Windows, you must install
+<a href="http://cygwin.com/";>Cygwin</a>
+to have a *nix-like environment for the shell scripts. The full details
+are explained in
+the <a href="../cygwin.html">Windows Installation</a>
+guide.
<h2><a name="getting_started" >Getting Started</a></h2>
