Source Configuration Properties

This topic provides configuration parameters available for Confluent Platform. The parameters are organized by order of importance, ranked from high to low.

name

Globally unique name to use for this connector.

Type: string
Default:  
Valid Values: non-empty string without ISO control characters
Importance: high

connector.class

Name or alias of the class for this connector. Must be a subclass of org.apache.kafka.connect.connector.Connector. If the connector is org.apache.kafka.connect.file.FileStreamSinkConnector, you can either specify this full name, or use “FileStreamSink” or “FileStreamSinkConnector” to make the configuration a bit shorter

Type: string
Default:  
Valid Values:  
Importance: high

tasks.max

Maximum number of tasks to use for this connector.

Type: int
Default: 1
Valid Values: [1,…]
Importance: high

key.converter

Converter class used to convert between Kafka Connect format and the serialized form that is written to Kafka. This controls the format of the keys in messages written to or read from Kafka, and since this is independent of connectors it allows any connector to work with any serialization format. Examples of common formats include JSON and Avro.

Type: class
Default: null
Valid Values:  
Importance: low

value.converter

Converter class used to convert between Kafka Connect format and the serialized form that is written to Kafka. This controls the format of the values in messages written to or read from Kafka, and since this is independent of connectors it allows any connector to work with any serialization format. Examples of common formats include JSON and Avro.

Type: class
Default: null
Valid Values:  
Importance: low

header.converter

HeaderConverter class used to convert between Kafka Connect format and the serialized form that is written to Kafka. This controls the format of the header values in messages written to or read from Kafka, and since this is independent of connectors it allows any connector to work with any serialization format. Examples of common formats include JSON and Avro. By default, the SimpleHeaderConverter is used to serialize header values to strings and deserialize them by inferring the schemas.

Type: class
Default: null
Valid Values:  
Importance: low

config.action.reload

The action that Connect should take on the connector when changes in external configuration providers result in a change in the connector’s configuration properties. A value of ‘none’ indicates that Connect will do nothing. A value of ‘restart’ indicates that Connect should restart/reload the connector with the updated configuration properties.The restart may actually be scheduled in the future if the external configuration provider indicates that a configuration value will expire in the future.

Type: string
Default: restart
Valid Values: [none, restart]
Importance: low

transforms

Aliases for the transformations to be applied to records.

Type: list
Default: “”
Valid Values: non-null string, unique transformation aliases
Importance: low

predicates

Aliases for the predicates used by transformations.

Type: list
Default: “”
Valid Values: non-null string, unique predicate aliases
Importance: low

errors.retry.timeout

The maximum duration in milliseconds that a failed operation will be reattempted. The default is 0, which means no retries will be attempted. Use -1 for infinite retries.

Type: long
Default: 0
Valid Values:  
Importance: medium

errors.retry.delay.max.ms

The maximum duration in milliseconds between consecutive retry attempts. Jitter will be added to the delay once this limit is reached to prevent thundering herd issues.

Type: long
Default: 60000 (1 minute)
Valid Values:  
Importance: medium

errors.tolerance

Behavior for tolerating errors during connector operation. ‘none’ is the default value and signals that any error will result in an immediate connector task failure; ‘all’ changes the behavior to skip over problematic records.

Type: string
Default: none
Valid Values: [none, all]
Importance: medium

errors.log.enable

If true, write each error and the details of the failed operation and problematic record to the Connect application log. This is ‘false’ by default, so that only errors that are not tolerated are reported.

Type: boolean
Default: false
Valid Values:  
Importance: medium

errors.log.include.messages

Whether to the include in the log the Connect record that resulted in a failure. This is ‘false’ by default, which will prevent record keys, values, and headers from being written to log files, although some information such as topic and partition number will still be logged.

Type: boolean
Default: false
Valid Values:  
Importance: medium

topic.creation.groups

Groups of configurations for topics created by source connectors

Type: list
Default: “”
Valid Values: non-null string, unique topic creation groups
Importance: low

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