Elasticsearch

The codec used for output data. Output codecs are a convenient method for encoding your data before it leaves the output, without needing a separate filter in your Logstash pipeline.

Enable debugging output?

Only handle events without any of these tags. Note this check is additional to type and tags.

The address of the Riemann server.

If set to true automatically map all logstash defined fields to riemann event fields. All nested logstash fields will be mapped to riemann fields containing all parent keys separated by dots and the deepest value.

As an example, the logstash event:

   {
     "@timestamp":"2013-12-10T14:36:26.151+0000",
     "@version": 1,
     "message":"log message",
     "host": "host.domain.com",
     "nested_field": {
                       "key": "value"
                     }
   }
Is mapped to this riemann event:

{
  :time 1386686186,
  :host host.domain.com,
  :message log message,
  :nested_field.key value
}

It can be used in conjunction with or independent of the riemann_event option. When used with the riemann_event any duplicate keys receive their value from riemann_event instead of the logstash event itself.

The port to connect to on your Riemann server.

The protocol to use UDP is non-blocking TCP is blocking

Logstash’s default output behaviour is to never lose events As such, we use tcp as default here

A Hash to set Riemann event fields (http://riemann.io/concepts.html).

The following event fields are supported: description, state, metric, ttl, service

Tags found on the Logstash event will automatically be added to the Riemann event.

Any other field set here will be passed to Riemann as an event attribute.

Example:

riemann {
    riemann_event => {
        "metric"  => "%{metric}"
        "service" => "%{service}"
    }
}

metric and ttl values will be coerced to a floating point value. Values which cannot be coerced will zero (0.0).

description, by default, will be set to the event message but can be overridden here.

The name of the sender. This sets the host value in the Riemann event

Only handle events with all of these tags. Note that if you specify a type, the event must also match that type. Optional.

The type to act on. If a type is given, then this output will only act on messages with the same type. See any input plugin’s type attribute for more. Optional.

The number of workers to use for this output. Note that this setting may not be useful for all outputs.