Plugin Name: KafkaOutput
Connects to a Kafka broker and sends messages to the specified topic.
Client ID string. Default is the hostname.
List of brokers addresses.
How many times to retry a metadata request when a partition is in the middle of leader election. Default is 3.
How long to wait for leader election to finish between retries (in milliseconds). Default is 250.
How frequently the client will refresh the cluster metadata in the background (in milliseconds). Default is 600000 (10 minutes). Set to 0 to disable.
Maximum size of a single message. Defaults to Heka’s maximum record size.
How many outstanding requests the broker is allowed to have before blocking attempts to send. Default is 4.
How long to wait for the initial connection to succeed before timing out and returning an error (in milliseconds). Default is 60000 (1 minute).
How long to wait for a response before timing out and returning an error (in milliseconds). Default is 60000 (1 minute).
How long to wait for a transmit to succeed before timing out and returning an error (in milliseconds). Default is 60000 (1 minute).
Chooses the partition to send messages to. The valid values are Random, RoundRobin, Hash. Default is Random.
The message variable used for the Hash partitioner only. The variables are restricted to Type, Logger, Hostname, Payload or any of the message’s dynamic field values. All dynamic field values will be converted to a string representation. Field specifications are the same as with the Message Matcher Syntax e.g. Fields[foo].
The message variable used as the Kafka topic (cannot be used in conjunction with the ‘topic’ configuration). The variable restrictions are the same as the hash_variable.
A static Kafka topic (cannot be used in conjunction with the ‘topic_variable’ configuration).
The level of acknowledgement reliability needed from the broker. The valid values are NoResponse, WaitForLocal, WaitForAll. Default is WaitForLocal.
The maximum duration the broker will wait for the receipt of the number of RequiredAcks (in milliseconds). This is only relevant when RequiredAcks is set to WaitForAll. Default is no timeout.
The type of compression to use on messages. The valid values are None, GZIP, Snappy. Default is None.
The maximum duration to buffer messages before triggering a flush to the broker (in milliseconds). Default is 1.
The threshold number of bytes buffered before triggering a flush to the broker. Default is 1.
The maximum number of bytes allowed to accumulate in the buffer before back-pressure is applied to QueueMessage. Without this, queueing messages too fast will cause the producer to construct requests larger than the MaxRequestSize (100 MiB). Default is 50 * 1024 * 1024 (50 MiB), cannot be more than (MaxRequestSize - 10 KiB).
New in version 0.11.
Specifies whether or not SSL/TLS encryption should be used for the TCP connections. Defaults to false.
A sub-section that specifies the settings to be used for any SSL/TLS
encryption. This will only have any impact if
use_tls is set to true.
See Configuring TLS.
Example (send various Fxa messages to a static Fxa topic):
[FxaKafkaOutput] type = "KafkaOutput" message_matcher = "Logger == 'FxaAuthWebserver' || Logger == 'FxaAuthServer'" topic = "Fxa" addrs = ["localhost:9092"] encoder = "ProtobufEncoder"