Table of Contents
This chapter describes the installation process for Oracle NoSQL Database in a multi-host environment. If you are planning a large system for production use, please read Initial Capacity Planning to estimate the number of storage nodes on which you will need to install the software. For simple uses when you already know the storage nodes you intend to use, simply follow the instructions below and Oracle NoSQL Database will make the best use of the storage nodes you provide.
Make sure that you have Java SE 7 or later installed on all of the hosts that you are going to use for the Oracle NoSQL Database installation. The command:
java -version
can be used to verify this.
Oracle NoSQL Database is compatible with Java SE 7 and later, and has been tested and certified against Oracle Java SE 7. It is recommended that you upgrade to the latest Java releases to take advantage of the latest bug fixes and performance improvements. The release notes included in the Oracle NoSQL Database download specify the exact Java versions that have been used for certification.
Make sure that the jps utility is working.
Installing the JDK allows the jps
tools to be available for use by the Storage Node Agent (SNA) in
order to optimally manage Oracle NoSQL Database processes. The jps tools also allow
you to diagnose any issues that may turn up. While Oracle NoSQL Database can continue to operate in the absence of the
jps tools, it diminishes its ability to
manage its processes.
If the JDK and its tools have been correctly installed, the output
from jps should list at least one Java process
(the jps process itself). Use the following command to verify
this:
% jps 16216 Jps
You must run the commands listed above as the OS user that will run the Oracle NoSQL Database SNA processes.
Only Linux and Solaris 10 are officially supported platforms for Oracle NoSQL Database. It may be that platforms other than Linux or Solaris 10 could work for your deployment. However, Oracle does not test Oracle NoSQL Database on platforms other than Linux and Solaris 10, and so makes no claims as to the suitability of other platforms for Oracle NoSQL Database deployments.
In addition, it is preferable that virtual machines not be used for any of the Oracle NoSQL Database nodes. This is because the usage of virtual machines makes it difficult to characterize Oracle NoSQL Database performance. For best results, run the Oracle NoSQL Database nodes natively (that is, without VMs) on Linux or Solaris 10 platforms.
You do not necessarily need root access on each node for the installation process.
Finally, make sure that some
sort of reliable clock synchronization is running on each of
the machines. Generally, a synchronization delta of less than
half a second is required. Network Time Protocol (ntp) is
sufficient for this purpose.