Streaming performance data all the way home.
| Symbol | Name | Type | Description | Parameters |
|---|---|---|---|---|
| A | Accumulator | Valueless | Tracking an all time total of a specific event type. | None |
| M | Meter | Valueless | Tracking the per seconds/minutes/hours/day rate of a specific event type | None |
| D | Delta | Value | The value of a given metric instance is the delta of the current and the prior value | TBD |
| P | Period Aggregated | Value | Values are aggregated to count, min, max and average per defined period (e.g. 15 sedonds) | TBD |
| S | Straight Through | Value | The metric is not aggregated and forwarded directly to endpoint | None |
The plain text stream is typically used when extracting data from application log or some other unstructured data feed after performing an extract-and-format operation in an intermediary such as LogStash and/or Filebeat.
- Directed: The line of text is beig submitted to a stream that is specific to the data type of the metric.
- Undirected: The line of text contains a symbol representing the data type of the metric and will be routed to an appropriate stream processor according to that symbol.
[<value-type>,]<timestamp>, [<value>,] <metric-name>, <host>, <app> [,<tagkey1>=<tagvalue1>,<tagkeyn*>=<tagvaluen>]*
- value-type: The value type symbol indicating how the metric should be routed. Only required if the routing is undirected.
- timestamp: The effective timestamp of the metric in seconds-since-the epoch or milliseconds-since-the epoch.
- value: The metric numeric value. Absent in valueless types.
- metric-name: The identifier of the meaning of the metric. The fully qualified (global) name is comprised of the metric-name, the host, the app and the tags.
- host : The name of the host the metric originated from
- app : The name of the application the metric originated from
- tags : Key value pairs that qualify the instance of the metric-name.