push jsonlog data to elasticsearch
As JSONlog project page states:


  Logs watchdog events JSON-formatted to log files. Provides a Logstash/ElasticSearch-ready log source.


The module only does one thing: turn Drupal watchdog events into JSON-loggable files and writes them to whatever server dir you've configured for it.

Before using this module you will need to:


Setup ElasticSearch &amp; Kibana. This is a separate task from setting up LogStash. It will depend on your service provider (this is off-topic for Drupal Answers).
Setup LogStash. This will vary based on whatever app server you're running Drupal on. You'll have to find instructions applicable to the app server running Drupal.