Check out the minimum and recommended hardware specifications for running PHPKB Knowledge Base Software
Whether you like to use a dedicated hosting server for running PHPKB Knowledge Base Software or host it on a local server, you can use hardware requirements and example specifications below for a reference.
On small instances, server load is primarily driven by peak visitors however you may use the following specifications for optimal performance.
|5 Concurrent Users||50 Concurrent Users||100 Concurrent Users||200 Concurrent Users|
These are example hardware specifications for non-clustered PHPKB Knowledge Base Software instances. These values are reported to us by our customers.
|User Accounts||# Articles||CPUs||Speed||RAM|
|150||1,000||1||2.6 GHz||1 GB|
|350||14,000||2||2.8 GHz||2 GB|
|5,000||15,000||4||3 GHz||4 GB|
|8,000||17,000||2||3.8 GHz||6 GB|
|10,000||4,000||2||3.4 GHz||8 GB|
|21,000||13,000||2||3.6 GHz||12 GB|
These values are largest customer instances reported to us or used for performance testing. Clustering for load balancing, database tuning and other performance tuning is recommended for instances exceeding these values.
Clustering in PHPKB is the same as clustering in any other web application. There are three parts of the application that can be clustered in order to get a performance boost:
For database clustering you need to use MySQL Cluster version of MySQL. The recommendation for good redundancy would be 2 MySQL Server Nodes, 2 Data Nodes and 1 Management Node. The minimum fully fault tolerant solution would consist of 3 servers with the 2 data nodes and the management node all running on different hosts and with at least 2 MySQL Server nodes running on different hosts from each other.
Web server clustering is reached by creating several (2 or more) nodes and at least 2 balancers that split up incoming requests between nodes.
PHPKB stores all attachments and media files in the file system. You can reduce load by moving these files onto external RAID array.
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