August 2017
Beginner to intermediate
278 pages
6h 40m
English
book
Building Data Streaming Applications with Apache Kafka
by Chanchal Singh, Manisha Sethi, Manish Kumar, Anshul Joshi
Content preview from Building Data Streaming Applications with Apache Kafka
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Producer request processing
Client requests that are intended to write messages to Kafka queues are called producer requests. Based on the information received from the metadata request, the client issues a write request to the leader broker. All the write requests contain a parameter called ack, which determines when brokers should respond with a successful write to the client. Following are the possible values of the ack configuration:
- 1: This means the message is accepted only by the leader
- all: This means all in-sync replicas along with the leader have accepted the message
- 0: This means do not wait for acceptance from any of the brokers
On the other hand, the broker first checks whether all the relevant information is in the request. ...
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