[[BasicConfiguration-BasicConfiguration]]
= Basic Configuration

In this page we list the Camel Kafka Configuration which are not part of the camel-catalog material and are not part of the kafka connect framework. For the specific connector configuration you can have a look at the single documentation pages.

For a Sink connector the basic options are:

[width="100%",cols="2,5,^2,1",options="header"]
|===
| Name | Description | Default | Priority
| camel.sink.marshal | The camel dataformat name to use to marshal data to the destination | null | HIGH
| camel.sink.unmarshal | The camel dataformat name to use to unmarshal data from the topic | null | HIGH
| camel.sink.contentLogLevel | Log level for the record's content. Valid values: TRACE, DEBUG, INFO, WARN, ERROR, OFF. | OFF | HIGH
| camel.beans.aggregate | A reference to an aggregate bean, in the form of #class: | null | MEDIUM
| camel.aggregation.size | The size of the aggregation, to be used in combination with camel.beans.aggregate | 10 | MEDIUM
| camel.aggregation.timeout | The timeout of the aggregation, to be used in combination with camel.beans.aggregate | 500L | MEDIUM
| camel.error.handler | The error handler to use: possible value are 'no' or 'default' | default | MEDIUM
| camel.error.handler.max.redeliveries | The maximum redeliveries to be use in case of Default Error Handler | 0 | MEDIUM
| camel.error.handler.redelivery.delay | The initial redelivery delay in milliseconds in case of Default Error Handler | 1000L | MEDIUM
| camel.remove.headers.pattern | The pattern of the headers we want to exclude from the exchange | null | MEDIUM
| camel.idempotency.enabled | If idempotency must be enabled or not | false | LOW
| camel.idempotency.repository.type | The idempotent repository type to use, possible values are memory and kafka | memory | LOW
| camel.idempotency.expression.type | How the idempotency will be evaluated: possible values are body and header | body | LOW
| camel.idempotency.expression.header | The header name that will be evaluated in case of camel.idempotency.expression.type equals to header | null | LOW
| camel.idempotency.memory.dimension | The Memory dimension of the in memory idempotent Repository | 100 | LOW
| camel.idempotency.kafka.topic | The Kafka topic name to use for the idempotent repository | kafka_idempotent_repository | LOW
| camel.idempotency.kafka.bootstrap.servers | A comma-separated list of host and port pairs that are the addresses of the Kafka brokers where the idempotent repository should live | localhost:9092 | LOW
| camel.idempotency.kafka.max.cache.size | Sets the maximum size of the local key cache | 1000 | LOW
| camel.idempotency.kafka.poll.duration.ms | Sets the poll duration (in milliseconds) of the Kafka consumer | 100 | LOW
|===

For a Source connector the basic options are:

[width="100%",cols="2,5,^2,1",options="header"]
|===
| Name | Description | Default | Priority
| camel.source.marshal | The camel dataformat name to use to marshal data to the destination | null | HIGH
| camel.source.unmarshal | The camel dataformat name to use to unmarshal data from the topic | null | HIGH
| camel.source.contentLogLevel | Log level for the record's content. Valid values: TRACE, DEBUG, INFO, WARN, ERROR, OFF. | OFF | HIGH
| camel.source.maxBatchPollSize | The max number of messages retrieved in a single poll() | 1000L | MEDIUM
| camel.source.maxPollDuration | The maximum time in milliseconds spent in a single call to poll() | 1000L | MEDIUM
| camel.source.pollingConsumerQueueSize | The queue size for the internal hand-off queue between the polling consumer, and producers sending data into the queue. | 1000L | MEDIUM
| camel.source.pollingConsumerBlockTimeout | To use a timeout (in milliseconds) when the producer is blocked if the internal queue is full. If the value is 0 or negative then no timeout is in use. | 0L | MEDIUM
| camel.source.pollingConsumerBlockWhenFull | Whether to block any producer if the internal queue is full. | true | MEDIUM
| camel.source.camelMessageHeaderKey | The name of a camel message header containing an unique key that can be used as a Kafka message key. If this is not specified, then the Kafka message will not have a key. | null | MEDIUM
| camel.beans.aggregate | A reference to an aggregate bean, in the form of #class: | null | MEDIUM
| camel.aggregation.size | The size of the aggregation, to be used in combination with camel.beans.aggregate | 10 | MEDIUM
| camel.aggregation.timeout | The timeout of the aggregation, to be used in combination with camel.beans.aggregate | 500L | MEDIUM
| camel.error.handler | The error handler to use: possible value are 'no' or 'default' | default | MEDIUM
| camel.error.handler.max.redeliveries | The maximum redeliveries to be use in case of Default Error Handler | 0 | MEDIUM
| camel.error.handler.redelivery.delay | The initial redelivery delay in milliseconds in case of Default Error Handler | 1000L | MEDIUM
| camel.remove.headers.pattern | The pattern of the headers we want to exclude from the exchange | null | MEDIUM
| camel.idempotency.enabled | If idempotency must be enabled or not | false | LOW
| camel.idempotency.repository.type | The idempotent repository type to use, possible values are memory and kafka | memory | LOW
| camel.idempotency.expression.type | How the idempotency will be evaluated: possible values are body and header | body | LOW
| camel.idempotency.expression.header | The header name that will be evaluated in case of camel.idempotency.expression.type equals to header | null | LOW
| camel.idempotency.memory.dimension | The Memory dimension of the in memory idempotent Repository | 100 | LOW
| camel.idempotency.kafka.topic | The Kafka topic name to use for the idempotent repository | kafka_idempotent_repository | LOW
| camel.idempotency.kafka.bootstrap.servers | A comma-separated list of host and port pairs that are the addresses of the Kafka brokers where the idempotent repository should live | localhost:9092 | LOW
| camel.idempotency.kafka.max.cache.size | Sets the maximum size of the local key cache | 1000 | LOW
| camel.idempotency.kafka.poll.duration.ms | Sets the poll duration (in milliseconds) of the Kafka consumer | 100 | LOW
|===

For more options related to single connector you can have a look at xref:connectors.adoc[Connectors list].
