The Websydian Server

• Websydian Server Introduction

• Websydian Server Licenses

• Features at a Glance

  • Feature Description

Websydian Server Introduction

The Websydian Server is the central repository for application information, and possesses the ability to control the different parts of the application as well as the overall application state.

The Websydian Server is an integrated part of the Distributed Websydian Architecture (DWA) in Websydian. This means a Websydian Server has to be installed in order to deploy a Websydian DWA application.

Websydian Server Licenses

The Websydian Server is licensed separately and is available in four different versions: Websydian Server Basic Unregistered and the three registered servers: Websydian Server Basic, Websydian Server Pro, and Websydian Server Enterprise.

Websydian Server Basic Unregistered is distributed with the Websydian Developer Suite. The Websydian Server Basic Unregistered can serve up to 10 simultaneous users per server. If this limit is exceeded users will be rejected when they try to access the application. Any number of basic servers can be distributed by the developer.

The registered Websydian Server Basic, Websydian Server Pro, and Websydian Server Enterprise are suited for a production environment. The registered Websydian Servers require a license file, which can be obtained from Websydian A/S by contacting support@websydian.com.

The Websydian Server Basic can serve up to 10 simultaneous users per license. If this limit is exceeded a 30-day grace period will be activated. In this grace period there will be no limit to the number of simultaneous users.

The Websydian Server Pro can serve up to 25 simultaneous users per license. If this limit is exceeded a 30-day grace period will be activated. In this grace period there will be no limit to the number of simultaneous users.

The Websydian Server Enterprise can serve any number of applications and an unlimited number of users per license.

The registered Websydian Server Basic and Websydian Server Pro include ONE 30 day grace period, during which the server can handle an unlimited number of concurrent users. This means that if the load on your e-Business application exceeds the limit of your current license the system will - for one month – continue to respond to user requests.

The grace period is invoked automatically and the Websydian Server will inform the administrator of the site by e-mail when the grace period is invoked. During this month you can monitor peak load and decide whether you need to upgrade, and if so request and install a new license. After one month the Websydian server will fall back to its original Websydian Server Basic or Websydian Server Pro performance with a HARD cut-off with a maximum of either 10 or 25 concurrent users.

Features at a Glance

The table below displays a list of features and the differences between the three license types.

Feature Description

Concurrent Users per Server

The max number of users that the Websydian server will allow for all applications using the Websydian Server. Please note, that in order to keep track of the number of concurrent users the application must implement the SessionControl pattern. Web applications implement this pattern in order to keep track of users and the state of the user's session.

For applications that does not implement sessions (e.g. web services) the concurrent user limit collapses to a request limit as each request is seen as coming from a new user.

The Websydian Server Agent

The Websydian Server Agent is a tool for automatic application monitoring. The Websydian Server Agent monitors the application and keeps the application running even when critical errors occur, informing the system administrator of the application status.

Currently the Websydian Server Agent is only supported on the iSeries platform.

Grace Period

If the maximum concurrent users limit should be reached then a grace period of 30 days will be enabled. Within these 30 days there is no limit to the number of concurrent users.

The grace period can then be used to upgrade the Websydian Server and acquire a new license file.