Apache Hadoop qbt Report: trunk+JDK8 on Linux/x86

For more details, see https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/1119/ [Apr 26, 2019 10:38:24 AM] (elek) HDDS-999. Make the DNS resolution in OzoneManager more resilient [Apr 26, 2019 11:59:50 AM] (github) HDDS-1460: Add the optmizations of HDDS-1300 to BasicOzoneFileSystem

Apache Hadoop qbt Report: branch2+JDK7 on Linux/x86

For more details, see https://builds.apache.org/job/hadoop-qbt-branch2-java7-linux-x86/304/ No changes -1 overall The following subsystems voted -1: asflicense findbugs hadolint pathlen unit xml The following subsystems voted -1 but were configured to be filtered/ignored: cc check