[GitHub] [pulsar] Anonymitaet commented on a change in pull request #5210: [Doc] Add *Kafka sink connector guide*

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Anonymitaet commented on a change in pull request #5210: [Doc] Add *Kafka sink connector guide*
URL: https://github.com/apache/pulsar/pull/5210#discussion_r325467749
 
 

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 File path: site2/docs/io-kafka-sink.md
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 @@ -0,0 +1,66 @@
+---
+id: io-kafka-sink
+title: Kafka sink connector
+sidebar_label: Kafka sink connector
+---
+
+The Kafka sink connector pulls messages from Pulsar topics and persists the messages
+to Kafka topics.
+
+This guide explains how to configure and use the Kafka sink connector.
+
+## Configuration
+
+The configuration of the Kafka sink connector has the following parameters.
+
+| Name | Type| Required | Default | Description 
+|------|----------|---------|-------------|-------------|
+|  `bootstrapServers` |String| true | " " (empty string) | A comma-separated list of host and port pairs for establishing the initial connection to the Kafka cluster. |
+|`ack`|String|true|" " (empty string) |The number of acknowledgments that the producer requires the leader to receive before a request completes. <br/>This controls the durability of the sent records.
+|`batchsize`|long||16384L|The batch size that a Kafka producer attempts to batch records together before sending them to brokers.
+|`maxRequestSize`|long||1048576L|The maximum size of a Kafka request in bytes.
+|`topic`|String|true|" " (empty string) |The Kafka topic which receives messages from Pulsar.
+| `keyDeserializationClass` | String|false | org.apache.kafka.common.serialization.StringSerializer | The serializer class for Kafka producers to serialize keys.
+| `valueDeserializationClass` | String|false | org.apache.kafka.common.serialization.ByteArraySerializer | The serializer class for Kafka producers to serialize values.<br/><br/>The serializer is set by a specific implementation of [`KafkaAbstractSink`](https://github.com/apache/pulsar/blob/master/pulsar-io/kafka/src/main/java/org/apache/pulsar/io/kafka/KafkaAbstractSink.java).
+|`producerConfigProperties`|Map||" " (empty string)|The producer configuration properties to be passed to producers. <br/><br/>**Note:  other properties specified in the connector configuration file take precedence over this configuration**.
+
 
 Review comment:
   @tuteng Are `batchsize` (line 20), `maxRequestSize` (line 21) and `producerConfigProperties` (line 25) optional or required? 
   I don't find this information in [KafkaSinkConfig.java](https://github.com/apache/pulsar/blob/master/pulsar-io/kafka/src/main/java/org/apache/pulsar/io/kafka/KafkaSinkConfig.java).

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