To run Hadoop, your system must meet minimum requirements.
There is no single hardware requirement set for installing Hadoop.
For more information on the parameters that may affect your installation, see Hardware Recommendations For Apache Hadoop
The following operating systems are supported:
Red Hat Enterprise Linux (RHEL) v5.x or 6.x (64-bit)
CentOS v5.x or 6.x (64-bit)
Oracle Linux v5.x or 6.x (64-bit)
SUSE Linux Enterprise Server (SLES) 11, SP1 (64-bit)
![[Important]](../common/images/admon/important.png) | Important |
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The installer pulls many packages from the base OS repos. If you do not have a complete set of base OS repos available to all your machines at the time of installation you may run into issues. For example, if you are using RHEL 6 your hosts must be able to access the "Red Hat Enterprise Linux Server 6 Optional (RPMs)" repo. If this repo is disabled, the installation is unable to access the rubygems package, which is necessary for Ambari to operate. If you encounter problems with base OS repos being unavailable, please contact your system administrator to arrange for these additional repos to be proxied or mirrored. For more information see Optional: Configure the Local Repositories |
The Ambari Install Wizard runs as a browser-based Web app. You must have a machine capable of running a graphical browser to use this tool. The supported browsers are:
Windows (Vista, 7)
Internet Explorer 9.0 and higher
Firefox latest stable release
Safari latest stable release
Google Chrome latest stable release
Mac OS X (10.6 or later)
Firefox latest stable release
Safari latest stable release
Google Chrome latest stable release
Linux (RHEL, CentOS, SLES)
Firefox latest stable release
Google Chrome latest stable release
On each of your hosts:
yum
rpm
scp
curl
wget
pdsh
| Important |
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The Python version shipped with SUSE 11, 2.6.0-8.12.2, has a critical bug that may cause the Ambari Agent to fail with 24 hours. If you are installing on SUSE 11, please update all your hosts to Python version 2.6.8-0.15.1. |
Hive/HCatalog, Oozie, and Ambari all require their own internal databases.
Hive/HCatalog: By default uses an Ambari-installed MySQL 5.x instance. With appropriate preparation, you can also use an existing MySQL 5.x or Oracle 11g r2 instance. See Using Non-Default Databasesfor more information on using existing instances.
Oozie: By default uses an Ambari-installed Derby instance. With appropriate preparation, you can also use an existing MySQL 5.x or Oracle 11g r2 instance. See Using Non-Default Databases for more information on using existing instances.
Ambari: By default uses an Ambari-installed PostgreSQL 8.x instance. With appropriate preparation, you can also use an existing Oracle 11g r2 instance. See Using Non-Default Databases for more information on using existing instances.
