Starting and Stopping Cloudera Services for MDCLone

Requirements

  • Access to WashU VPN or Production network
  • Access to Cloudera manager admin account
  • Access to az-mdc-app-1-2022 host

REMEMBER: Send out outage notification to MDClone users before stopping Cloudera SCM (Contact MDClone Helpdesk for notifications)

Stopping Cloudera SCM

  1. Stop Cloudera services from Cloudera GUI
    a. Shutdown Cloudera Roles/services from GUI



    MDClone elipses menu->Stop




    b. Shutdown Cloudera manager



    MDClone->Cloudera Management Service->elipses menu->Stop



  2. Stop Docker on each manager host az-mdc-cm-[1-3]


         -- as manager user on az-mdc-cm-1 host
         sudo systemctl status docker.service
         sudo systemctl stop docker.service
         sudo systemctl status docker.service
         sudo systemctl disable docker.service
     



  3. Stop Cloudera agent on all Hadoop Nodes


         -- as manager user on all hadoop hosts az-mdc-cm-[1-3] az-mdc-cw-[1-4]
         sudo systemctl status cloudera-scm-agent.service
         sudo systemctl stop cloudera-scm-agent.service
         sudo systemctl status cloudera-scm-agent.service
     



  4. Stop cloudera-scm-server process on az-mdc-cm-1


         -- as manager user on az-mdc-cm-1 host
         sudo systemctl status cloudera-scm-server.service 
         sudo systemctl stop cloudera-scm-server.service 
         sudo systemctl status cloudera-scm-server.service 
     



  5. Stop MySQL database process on az-mdc-cm-1


     -- as manager user on az-mdc-cm-1 host
     sudo systemctl status mysqld.service
     sudo systemctl stop mysqld.service
     sudo systemctl status mysqld.service
     



Starting Cloudera SCM

  1. Start MySQL database process on az-mdc-cm-1


     -- as manager user on az-mdc-cm-1 host
     sudo systemctl status mysqld.service
     sudo systemctl start mysqld.service
     sudo systemctl status mysqld.service
     



  2. Start cloudera-scm-server process on az-mdc-cm-1


         -- as manager user on az-mdc-cm-1 host
         sudo systemctl status cloudera-scm-server.service 
         sudo systemctl start cloudera-scm-server.service 
         sudo systemctl status cloudera-scm-server.service 
     



  3. Start Cloudera agent on all Hadoop Nodes


         -- as manager user on all hadoop hosts az-mdc-cm-[1-3] az-mdc-cw-[1-4]
         sudo systemctl status cloudera-scm-agent.service
         sudo systemctl start cloudera-scm-agent.service
         sudo systemctl status cloudera-scm-agent.service
     



  4. Start Docker on each manager host az-mdc-cm-[1-3]


         -- as manager user on az-mdc-cm-1 host
         sudo systemctl status docker.service
         sudo systemctl start docker.service
         sudo systemctl status docker.service
         sudo systemctl enable docker.service
     



  5. Start Cloudera services from Cloudera GUI
    a. Shutdown Cloudera manager



    MDClone->Cloudera Management Service->elipses menu->Restart




    b. Shutdown Cloudera Roles/services from GUI



    MDClone elipses menu->Restart




Updated on August 7, 2025