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When there is a large amount of message accumulation, the consumer's callback function will retrieve multiple messages at once, ranging from 1 to 32, but the maximum is 32
this function msgs param size is 1 <= msgs.size() <= 32
virtual rocketmq::ConsumeStatus consumeMessage(const std::vectorrocketmq::MQMessageExt &msgs);
This set of messages cannot have a separate status of CONSUME_SUCCESS or other status.
So I must wait for all messages in this group to be processed by the business before being uniformly marked as CONSUME_SUCCESS or other status.
I set consumer setConsumeMessageBatchMaxSize(1), but is not work.
For example, if the size of msgs is 32, then I just need to return CONSUME_ SUCCESS means that all 32 messages will be consumed and removed from the message queue broker.
Actually, I only want to consume one by one, rather than group by group
But the same logic applies in the Java version of Rocketmq, I can take one out of msgs and mark return CONSUME_SUCCESS Other messages will continue to be sent and have not been removed from the broker.
OR I can set setPullBatchSize, it default value is 32.
public void setPullBatchSize(int pullBatchSize) {
this.pullBatchSize = pullBatchSize;
}
When there is a large amount of message accumulation, the consumer's callback function will retrieve multiple messages at once, ranging from 1 to 32, but the maximum is 32
this function msgs param size is 1 <= msgs.size() <= 32
virtual rocketmq::ConsumeStatus consumeMessage(const std::vectorrocketmq::MQMessageExt &msgs);
This set of messages cannot have a separate status of CONSUME_SUCCESS or other status.
So I must wait for all messages in this group to be processed by the business before being uniformly marked as CONSUME_SUCCESS or other status.
I set consumer setConsumeMessageBatchMaxSize(1), but is not work.
For example, if the size of msgs is 32, then I just need to return CONSUME_ SUCCESS means that all 32 messages will be consumed and removed from the message queue broker.
Actually, I only want to consume one by one, rather than group by group
But the same logic applies in the Java version of Rocketmq, I can take one out of msgs and mark return CONSUME_SUCCESS Other messages will continue to be sent and have not been removed from the broker.
OR I can set setPullBatchSize, it default value is 32.
this is cpp consumer config
What should I do?
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