Wiki source code of 06 Technische Voraussetzungen
Last modified by Carina Enke on 12.08.2024
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| 1 | {{section}} | ||
| 2 | {{column width="60%"}} | ||
| 3 | The learning platform is a web-based application mainly written in Java. The following standard applications are supported: | ||
| 4 | |||
| 5 | * Web server: Apache | ||
| 6 | * Application server: Tomcat | ||
| 7 | * Management of data: PostgreSQL, XML | ||
| 8 | |||
| 9 | To use this learning platform, you need an internet connection and a web browser (Google Chrome, Mozilla Firefox, Internet Explorer, etc.). | ||
| 10 | {{/column}} | ||
| 11 | |||
| 12 | {{column width="30%"}} | ||
| 13 | {{panel title="Content"}} | ||
| 14 | {{toc start="2"/}} | ||
| 15 | {{/panel}} | ||
| 16 | {{/column}} | ||
| 17 | {{/section}} | ||
| 18 | |||
| 19 | == Hardware == | ||
| 20 | |||
| 21 | Recommendation for 300 concurrent users: | ||
| 22 | |||
| 23 | * 8 GB RAM | ||
| 24 | * 2 CPUs > 2 GHz | ||
| 25 | * 200 GB HDD | ||
| 26 | |||
| 27 | |||
| 28 | == Software == | ||
| 29 | |||
| 30 | We recommend Linux (64bit). | ||
| 31 | |||
| 32 | The following distributions are currently used for productive instances: | ||
| 33 | |||
| 34 | * Scientific Linux | ||
| 35 | * Red Hat Enterprise Linux | ||
| 36 | * Ubuntu | ||
| 37 | * Open Suse | ||
| 38 | * SUSE Linux Enterprise Server | ||
| 39 | |||
| 40 | Other distributions are possible. | ||
| 41 | |||
| 42 | === Software components === | ||
| 43 | |||
| 44 | * Web server: Apache web server + mod_ssl (mod_jk or proxy_ajp) | ||
| 45 | * Database server: Postgresql | ||
| 46 | * Application server: Java 17, Apache Tomcat 9 | ||
| 47 | |||
| 48 | === Distribution === | ||
| 49 | |||
| 50 | * Up to 300 concurrent users: All components on one server | ||
| 51 | * Up to 500 concurrent users: Separation between database server and application server | ||
| 52 | * Up to 800 concurrent users: Separation between database server, application server, and web server | ||
| 53 | * Up to 1200 concurrent users: Multiple OPAL nodes on the application server | ||
| 54 | * More than approx. 1500 concurrent users: Multiple application servers |