Installation Prerequisites
Before beginning Ranger installation, make sure the following software is already installed:
JDK 7 or above (available from the Oracle Java Download site)
Supported Operating Systems:
64-bit CentOS 6
64-bit CentOS 7
64-bit Red Hat Enterprise Linux (RHEL) 6
64-bit Oracle Linux 6
64-bit SUSE Linux Enterprise Server (SLES) 11, SP3/SP4
64-bit Debian 6
Windows Server 2008, 2012
Supported Databases:
MySQL v. 5.6 or above
PostgreSQL 8.4.2
SQL Server 2012
Oracle DB 11G or above (Oracle LINUX 6)
If the database server is not installed at the same host, Ranger services need to have access to the database server host.
![[Note]](../common/images/admon/note.png)
Note If you are installing over an HDP-2.2 version of Ranger, you should review the data in the xa_access_audit table in the Ranger Audit Database. Truncate historical data to reduce install time, especially if you have a lot of data in xa_access_audit table.
You should also set up Hadoop group mapping for LDAP/AD.