maqingxiang commented on a change in pull request #5304: [FLINK-8290]Modify
clientId to groupId in flink-connector-kafka-0.8
URL: https://github.com/apache/flink/pull/5304#discussion_r208448741
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File path:
flink-connectors/flink-connector-kafka-0.8/src/main/java/org/apache/flink/streaming/connectors/kafka/internals/SimpleConsumerThread.java
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@@ -123,6 +124,7 @@ public SimpleConsumerThread(
this.fetchSize = getInt(config, "fetch.message.max.bytes",
1048576);
this.bufferSize = getInt(config, "socket.receive.buffer.bytes",
65536);
this.reconnectLimit = getInt(config,
"flink.simple-consumer-reconnectLimit", 3);
+ this.clientId = config.getProperty("group.id",
"flink-kafka-consumer-legacy-" + broker.id());
Review comment:
Hi, @azagrebin
group.id is a concept of kafka, used to describe consumers property, its
official description is "A string that uniquely identifies the group of
consumer processes to which this consumer belongs. By setting the same group id
multiple processes indicate that they are all part of the same consumer group".
client.id is a concept of SimpleConsumer, its official descriptionis "The
client id is a user-specified string sent in each request to help trace calls.
It should logically identify the application making the request". its default
value is "group.id value"
thanks.
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