Service Description

Drake Emko

Overview

Jakarta Tomcat is an Open Source Java application server. OSG maintains multiple installations of Tomcat 5.0.19. This means we can host Web applications conforming to the Servlet 2.4 and JSP 2.0 specifications.

These servers are configured from a central location, but run as separate application containers. They are spread across the following nodes: osgjas01.cns.ufl.edu, osgjas02.cns.ufl.edu, osgjas03.cns.ufl.edu, osgjas04.cns.ufl.edu. Each node may contain one or more Tomcat instances (in this document, the term "instance" is interchangeable with "server"). Web requests are directed to the appropriate Tomcat server(s) by a load-balanced Apache cluster (on SP nodes: 16, 19, and 28), using the mod_jk AJP13 connector plugin.

By providing multiple servers, we can give each customer their own Java container(s). This is useful not only for billing purposes (since each Tomcat instance will run under the customer's userid), but also to keep a misbehaving application or instance from potentially affecting other applications. Also, we can provide horizontally- and vertically-cloned servers to balance the load for high-traffic applications.

Tomcat Definition

Service Dependencies

Systems Administration

NSAM Backup

Machine Dependencies

osgjas01

osgjas02

osgjas03

osgjas04

Data Classifications

Tomcat system files and global administration scripts
Data Principal
Stephen Ulmer
Data Custodian
OSG Staff
Data User
OSG
Data Confidentiality
Medium
Data Integrity
Medium
Data Availability
High
Tomcat instance-specific configuration files
Data Principal
Stephen Ulmer
Data Custodian
OSG Staff
Data User
OSG, Tomcat customers
Data Confidentiality
Medium
Data Integrity
Medium
Data Availability
High
Tomcat web applications
Data Principal
Stephen Ulmer
Data Custodian
OSG Staff
Data User
OSG, Tomcat customers
Data Confidentiality
Medium
Data Integrity
Medium
Data Availability
High

	Other data
	Other data associated with this service belongs to the customers of the service. For information regarding customer data, the customer's organization should be contacted.