See <https://builds.apache.org/job/HBase-Nightly-ARM/164/display/redirect?page=changes>
- Jenkins build became unstable: HBase-Nightly-ARM #1... Apache Jenkins Server
- Jenkins build is still unstable: HBase-Nightly-... Apache Jenkins Server
- Build failed in Jenkins: HBase-Nightly-ARM ... Apache Jenkins Server
- Jenkins build is back to normal : HBase... Apache Jenkins Server
