nexus-private.hortonworks.com无法连接 （failed: Connection timed out）_connect to nexus.qc.oop.cc:443 [nexus.qc.oop.cc/10

在编译Ambari 2.7.3时出现如下错误

[INFO] Reactor Summary:
[INFO]
[INFO] Ambari Main 2.7.3.0.0 .............................. SUCCESS [  4.104 s]
[INFO] Apache Ambari Project POM .......................... SUCCESS [  0.314 s]
[INFO] Ambari Web ......................................... SUCCESS [01:06 min]
[INFO] Ambari Views ....................................... SUCCESS [  1.555 s]
[INFO] Ambari Admin View .................................. SUCCESS [  9.061 s]
[INFO] ambari-utility 1.0.0.0-SNAPSHOT .................... SUCCESS [  1.598 s]
[INFO] ambari-metrics ..................................... SUCCESS [  0.623 s]
[INFO] Ambari Metrics Common .............................. SUCCESS [  6.692 s]
[INFO] Ambari Metrics Hadoop Sink ......................... SUCCESS [ 25.866 s]
[INFO] Ambari Metrics Flume Sink .......................... SUCCESS [  2.286 s]
[INFO] Ambari Metrics Kafka Sink .......................... SUCCESS [  2.441 s]
[INFO] Ambari Metrics Storm Sink .......................... SUCCESS [  3.170 s]
[INFO] Ambari Metrics Collector ........................... FAILURE [45:57 min]
[INFO] Ambari Metrics Monitor ............................. SKIPPED
[INFO] Ambari Metrics Grafana 2.1.0.0.0 ................... SKIPPED
[INFO] Ambari Metrics Host Aggregator ...........