See <https://ci-builds.apache.org/job/Kafka/job/kafka/job/trunk/2855/display/redirect>
- Jenkins build is unstable: Kafka » Kafka Branch Buil... 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 still unstable: Ka... Apache Jenkins Server
- Jenkins build is still unstabl... Apache Jenkins Server
