How can I implement a shared rate-limiting counter for multiple microservices using a distributed system like Kafka or Zookeeper

Question

With the help of code, can you implement a shared rate-limiting counter for multiple microservices using a distributed system like Kafka or Zookeeper?

Answer 1

To implement a shared rate-limiting counter across microservices using Kafka or Zookeeper, you can use Zookeeper's ephemeral nodes or Kafka topics to track the counter state. You can refer to below:

Using Zookeeper:

• Create and Manage Counter:

• Usage in Microservices:

Here is the code for the above methods:

Using Kafka:

• Track Counter in Kafka Topic:

• Usage in Microservices:

Here is the code snippet showing the above methods:

In the above code, we are using Zookeeper, which uses shared persistent nodes for atomic updates to counters. Kafka uses topic messages to track and aggregate counters across microservices and Concurrency, which ensures atomicity in distributed environments to prevent race conditions.

Hence, referring to the above, you can implement a shared rate-limiting counter for multiple microservices using a distributed system like Kafka or Zookeeper.