See <https://ci-builds.apache.org/job/Kafka/job/kafka/job/3.0/122/display/redirect>
- Jenkins build became unstable: Kafka » Kafka Branch... Apache Jenkins Server
- Jenkins build is still unstable: Kafka » Kafka ... Apache Jenkins Server
- Jenkins build is still unstable: Kafka » Ka... Apache Jenkins Server
- Jenkins build is still unstable: Kafka ... Apache Jenkins Server
- Jenkins build is back to stable : K... Apache Jenkins Server
