sleep

If this filter is successful, add any arbitrary fields to this event. Field names can be dynamic and include parts of the event using the %{field}.

Example:

    filter {
      sleep {
        add_field => { "foo_%{somefield}" => "Hello world, from %{host}" }
      }
    }
[source,ruby]
    # You can also add multiple fields at once:
    filter {
      sleep {
        add_field => {
          "foo_%{somefield}" => "Hello world, from %{host}"
          "new_field" => "new_static_value"
        }
      }
    }

If the event has field "somefield" == "hello" this filter, on success, would add field foo_hello if it is present, with the value above and the %{host} piece replaced with that value from the event. The second example would also add a hardcoded field.

If this filter is successful, add arbitrary tags to the event. Tags can be dynamic and include parts of the event using the %{field} syntax.

Example:

    filter {
      sleep {
        add_tag => [ "foo_%{somefield}" ]
      }
    }
[source,ruby]
    # You can also add multiple tags at once:
    filter {
      sleep {
        add_tag => [ "foo_%{somefield}", "taggedy_tag"]
      }
    }

If the event has field "somefield" == "hello" this filter, on success, would add a tag foo_hello (and the second example would of course add a taggedy_tag tag).

Sleep on every N’th. This option is ignored in replay mode.

Example:

    filter {
      sleep {
        time => "1"   # Sleep 1 second
        every => 10   # on every 10th event
      }
    }

Call the filter flush method at regular interval. Optional.

If this filter is successful, remove arbitrary fields from this event. Fields names can be dynamic and include parts of the event using the %{field} Example:

    filter {
      sleep {
        remove_field => [ "foo_%{somefield}" ]
      }
    }
[source,ruby]
    # You can also remove multiple fields at once:
    filter {
      sleep {
        remove_field => [ "foo_%{somefield}", "my_extraneous_field" ]
      }
    }

If the event has field "somefield" == "hello" this filter, on success, would remove the field with name foo_hello if it is present. The second example would remove an additional, non-dynamic field.

If this filter is successful, remove arbitrary tags from the event. Tags can be dynamic and include parts of the event using the %{field} syntax.

Example:

    filter {
      sleep {
        remove_tag => [ "foo_%{somefield}" ]
      }
    }
[source,ruby]
    # You can also remove multiple tags at once:
    filter {
      sleep {
        remove_tag => [ "foo_%{somefield}", "sad_unwanted_tag"]
      }
    }

If the event has field "somefield" == "hello" this filter, on success, would remove the tag foo_hello if it is present. The second example would remove a sad, unwanted tag as well.

Enable replay mode.

Replay mode tries to sleep based on timestamps in each event.

The amount of time to sleep is computed by subtracting the previous event’s timestamp from the current event’s timestamp. This helps you replay events in the same timeline as original.

If you specify a time setting as well, this filter will use the time value as a speed modifier. For example, a time value of 2 will replay at double speed, while a value of 0.25 will replay at 1/4th speed.

For example:

    filter {
      sleep {
        time => 2
        replay => true
      }
    }

The above will sleep in such a way that it will perform replay 2-times faster than the original time speed.

The length of time to sleep, in seconds, for every event.

This can be a number (eg, 0.5), or a string (eg, %{foo}) The second form (string with a field value) is useful if you have an attribute of your event that you want to use to indicate the amount of time to sleep.

Example:

    filter {
      sleep {
        # Sleep 1 second for every event.
        time => "1"
      }
    }