problem sloved stop all service - sudo service cloudera-scm-agent hard_stop_confimed delete file /var/run/cloudera-scm-server.pid allow read permission to /var/log/cloudera-scm-server/cloudera-scm-server.log & /var/log/cloudera-scm-server/db.log    start all service sudo service cloudera-scm-server-db start sudo service cloudera-scm-server start sudo service cloudera-scm-agent hard_restart_confimed ... View more