Counter - Collector
Metrics collector query and collects metrics in order to be able to send them to a metrics server
Log Collector may also derived, create and load metrics.
The list below may mix metrics and log collector.
In a instrumented application, reporter are a client piece of code which:
- process its internal registry's metrics periodically
- and publish the metrics to be queried or send them
Agent are daemon that:
- collects system and application performance metrics periodically from instrumented application
- and provides mechanisms to store/send the values in a variety of ways.
Pipeline agent are agent where you can create a pipeline with input and ouput
|Vector (DataDog)||Rust||Linux and Windows|
|MetricBeat (Elastic Metric Oriented Beat Module)||Go||Linux and Windows||Only Elastic Search and Logstash Output|
|FileBeat (Elastic Log Oriented Beat Module)||Go||Linux and Windows||Only Elastic Search and Logstash Output|
|LogStash (Elastic Log Oriented)||Java / Ruby||Linux and Windows|
|Fluentd (Calyptia)||C||Linux and Windows|
|FluentBit (Calyptia)||C||Linux and Windows||Fluentd successor with smaller memory footprint 1)|
|Telegraf (Influx)||Go||Linux and Windows|
Server does not query the source but listen to accept metrics from client. Client must run and sends metrics to the daemon.
|Riemann||Clojure||?||monitors distributed systems. A network event stream processing system|
Loss agent are agent that collect metrics and are not part of a monitoring platform.
|Prometheus Exporter||Export Metrics in a http page. The server scrapes the metrics page (It can forward the metrics instead of storing them)|
All Monitor platform have agent that will collect metrics.
This collector works mostly via the SNMP protocol to gather metrics.
|Cacti||Php / SNMP||Linux and Windows||Network monitoring: There is only one client called Poller 4) and is run by cron to collect mostly SNMP data, write only to RRD/MySQL database|
|Munin||Perl /SNMP||?||Network Monitoring: Write only to RRD|
|Jrds||Java||Linux and Windows||Write only to RRD - See probes (collect, store, graph) config|
Command line Utility
Command line utility can also be used and are OS dependent.
- for windows:
- for linux, see the dedicated page: What are the Metrics / Counters of Linux ?
Every protocol (language) can be used to query counter but there is some specialized to do that such as:
- Http (for Prometheus Exporter)