Metricbeat

Another lightweight data shipper that can be installed on any server to fetch system metrics. Metricbeat helps us to collect metrics from systems and services and to monitor the servers. Metrics are running on those servers, on which we installed Metricbeat. Metricbeat ships the collected system metrics data to Elasticsearch Logstash for analysis. Metricbeat can monitor many different services, as follows:

• MySQL
• PostgreSQL
• Apache
• Nginx
• Redis
• HAProxy

I've listed only some of the services, Metricbeat supports a lot more than that.