Red Hat SummitFuse 6 is no longer supported
As of February 2025, Red Hat Fuse 6 is no longer supported. If you are using Fuse 6, please upgrade to Red Hat build of Apache Camel.このコンテンツは選択した言語では利用できません。
Chapter 79. Kafka
Kafka Component
リンクのコピーリンクがクリップボードにコピーされました!
Available as of Camel 2.13
The kafka: component is used for communicating with Apache Kafka message broker.
Maven users will need to add the following dependency to their
pom.xml for this component:
URI format
リンクのコピーリンクがクリップボードにコピーされました!
kafka:server:port[?options]
kafka:server:port[?options]Options
リンクのコピーリンクがクリップボードにコピーされました!
|
Property
|
Default
|
Description
|
|---|---|---|
|
zookeeperHost
|
|
The zookeeper host to use
|
|
zookeeperPort
|
2181
|
The zookeeper port to use
|
| zookeeperConnect | Camel 2.13.3/2.14.1: If in use, then zookeeperHost/zookeeperPort is not used. | |
|
topic
|
|
The topic to use
|
| groupId | ||
| partitioner | ||
| consumerStreams | 10 | |
| clientId | ||
| zookeeperSessionTimeoutMs | ||
| zookeeperConnectionTimeoutMs | ||
| zookeeperSyncTimeMs | ||
| consumersCount |
1
|
Camel 2.15.0: The number of consumers that connect to Kafka server. |
| batchSize |
100
|
Camel 2.15.0: The batchSize that the BatchingConsumerTask processes once.
|
| barrierAwaitTimeoutMs |
10000
|
Camel 2.15.0: If the BatchingConsumerTask processes exchange exceed the batchSize, it will wait for barrierAwaitTimeoutMs.
|
You can append query options to the URI in the following format,
?option=value&option=value&...
Producer Options
リンクのコピーリンクがクリップボードにコピーされました!
|
Property
|
Default
|
Description
|
|---|---|---|
|
producerType
|
|
|
| compressionCodec | ||
| compressedTopics | ||
| messageSendMaxRetries | ||
| retryBackoffMs | ||
| topicMetadataRefreshIntervalMs | ||
| sendBufferBytes | ||
| requestRequiredAcks | ||
| requestTimeoutMs | ||
| queueBufferingMaxMs | ||
| queueBufferingMaxMessages | ||
| queueEnqueueTimeoutMs | ||
| batchNumMessages | ||
| serializerClass | ||
| keySerializerClass |
Consumer Options
リンクのコピーリンクがクリップボードにコピーされました!
|
Property
|
Default
|
Description
|
|---|---|---|
|
consumerId
|
|
|
| socketTimeoutMs | ||
| socketReceiveBufferBytes | ||
| fetchMessageMaxBytes | ||
| autoCommitEnable | ||
| autoCommitIntervalMs | ||
| queuedMaxMessages | ||
| rebalanceMaxRetries | ||
| fetchMinBytes | ||
| fetchWaitMaxMs | ||
| rebalanceBackoffMs | ||
| refreshLeaderBackoffMs | ||
| autoOffsetReset | ||
| consumerTimeoutMs |
Samples
リンクのコピーリンクがクリップボードにコピーされました!
Consuming messages:
from("kafka:localhost:9092?topic=test&zookeeperHost=localhost&zookeeperPort=2181&groupId=group1").to("log:input");
from("kafka:localhost:9092?topic=test&zookeeperHost=localhost&zookeeperPort=2181&groupId=group1").to("log:input");
Producing messages:
See unit tests of camel-kafka for more examples
Endpoints
リンクのコピーリンクがクリップボードにコピーされました!
Camel supports the Message Endpoint pattern using the Endpoint interface. Endpoints are usually created by a Component and Endpoints are usually referred to in the DSL via their URIs.
From an Endpoint you can use the following methods
- createProducer() will create a Producer for sending message exchanges to the endpoint
- createConsumer() implements the Event Driven Consumer pattern for consuming message exchanges from the endpoint via a Processor when creating a Consumer
- createPollingConsumer() implements the Polling Consumer pattern for consuming message exchanges from the endpoint via a PollingConsumer
See Also
リンクのコピーリンクがクリップボードにコピーされました!
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}