错误描述：
/opt/cm-5.7.0/etc/init.d/cloudera-scm-agent status
cloudera-scm-agent dead but pid file exists
查看日志/opt/cm-5.7.0/log/cloudera-scm-agent/cloudera-scm-agent.log：
No socket could be created on ('testintf.novalocal', 9000) -- [Errno 99] Cannot assign requested address