Table of Contents

1. Challenge

   Clone the Starter Project from GitHub and Perform a Test Run

   1. Clone the starter project from GitHub:

      cd ~/
      git clone https://github.com/linuxacademy/content-ccdak-consumer-tuning-lab.git
      

   2. Perform a test run to make sure the code is able to compile:

      cd content-ccdak-consumer-tuning-lab
      ./gradlew run
      

      The code should compile, but the consumer will fail to run.

2. Challenge

   Implement Configuration Changes to Address the Issues

   1. Edit the Consumer class:

      vi src/main/java/com/linuxacademy/ccdak/consumer/MemberSignupsConsumer.java
      

   2. Increase the minimum fetch size by setting fetch.min.bytes=1024:

      props.setProperty("fetch.min.bytes", "1024");
      

   3. Send heartbeats more frequently by setting heartbeat.interval.ms=2000:

      props.setProperty("heartbeat.interval.ms", "2000");
      

   4. Fix the issue with the offset reset behavior by setting auto.offset.reset=earliest:

      props.setProperty("auto.offset.reset", "earliest");
      

   5. Run your code to verify it still works:

      ./gradlew run