Life of an Fluentd event
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Fluentd processes logs and events from multiple sources by assigning each a tag based on its input source. It then matches these tags to specific outputs like databases or search engines. Fluentd can also re-process events by assigning a new tag to allow for filtering of data to different destinations.
Life of an Fluentd event
- 1. Every Fluentd event begets a tag with an input. Apache log Fluentd tag=apache
- 2. Fluentd matches the tag against different outputs Apache log Fluentd tag=web.access ? web.access? ? web.error? ? syslog?
- 3. Fluentd then sends the event to the matched output. Apache log Fluentd tag=web.access ? web.access? ? web.error? ? syslog? MongoDB
- 4. Fluentd supports multiple data sources and destinations Apache log Fluentd tag=web.access ? web.access? ? web.error? ? syslog? MongoDB Elastic search tag=syslog syslog
- 5. Apache log Fluentd tag=web.access ? web.access? ? web.error? ? syslog? MongoDB Elastic search tag=syslog syslog Fluentd can re-emit events back to Fluentd with a new tag. This is how filtering works.