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Cluster Management

Cluster Management is a highly scalable solution for creating a clustered environment using Zend Server. A clustered environment is deployed when it is necessary to synchronize data across a cluster of three or more PHP servers. Moreover, PHP implementations that were not originally designed with scalability in mind, Zend Server to grow beyond a single server, to a Web Cluster.

Cluster Management includes:

Session Clustering - The sharing of session information across a cluster of servers.
Centralized Monitoring - aggregation of issues and eventsEvents are a result of the monitoring component checking your system and collecting information about a specific occurrence that indicates that your environment is displaying uncharacteristic behavior. throughout the clustered environment.
Server Management - A single point of management for server configurations (PHP, components etc).

Centralized Monitoring:

Zend Server is a central monitoring management console, the main intent of this is to provide a central area that will aggregate all information collected in your system such as Monitor events, Job information, Code Tracing information etc. In addition to collecting information, the centralized system is a means for propagating settings throughout the system such as monitor rule settings, jobsJobs contain information about a specific Job (script to run) that you have set to run in your environment. and also component, extension and directive configurations.

Information Display

When first logging in to Zend Server, There will be no information displayed in the various tabs. Zend Server will start to collect information only after you have added at least one server to the cluster. The only exception to this is if you had servers running as a cluster and then removed them. All historical information in the Dashboard tabs is retained such as old queue statistics, jobs and trace information.

All subsequent information displayed in the Administration Interface represents the settings of the server defined as the master server. This is defined when the server was added by selecting the option "Configure all the cluster like this new server".

Additional Information about Cluster Management:

The Cluster Management administration interface page

Managing Servers- instructions on how to deploy setup and manage your clustered environment

The Cluster Management component - a general overview of the component's architecture.

Cluster Management API - an API reference for Cluster Management functions and classes.