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Learning OpenStack High Availability by Rishabh Sharma

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Logstash, Elasticsearch and Kibana

These are open source technologies for the efficient storage, analysis and retrieval of any type of log files. The backend storage will be provided using elasticsearch, and Kibana is used to generate reports via various chats instantly. In this OpenStack cloud environment, all the logs files that are generated will be considered for analyzing some resource utilization according to the policies. There is a log of built-in functions available for various purposes with the analyzed log files.

Installing Logstash

To install logstash, we need a Java runtime. We can check with the system whether Java will be available using this command as follows:

#sudo java –version

As an initial step of the Logstash installation, ...

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