17.2.3 Troubleshooting problems related to connecting to agents

This subsection describes the possible causes and solutions for cases when PFM - Web Console displays error messages such as Cannot connect to an agent or No agent is displayed.

• The communication between PFM - Manager and PFM - Agent or PFM - RM is the cause of a problem.

• On the PFM - Manager host, execute ping PFM - Agent-host-or-PFM - RM-host and ping IP-address-of-PFM - Agent-or-PFM - RM-host to check the following:

  • Whether it is possible to communicate with the PFM - Agent host

  • If it is possible to communicate, whether the IP address matches that used by the PFM - Agent or PFM RM host

  • If the jpchosts or hosts file is used, whether the IP address is correctly set in the file on PFM - Manager and PFM - Agent or PFM - RM hosts

  Performance Management performs name resolution in the order of jpchosts, hosts, and DNS.

• On the PFM - Agent host or PFM - RM host, execute ping PFM - Manager-host and ping IP-address-of-PFM - Manager-host to check the following:

  • Whether it is possible to communicate with the PFM - Manager host

  • If it is possible to communicate, whether the IP address matches the address used by the PFM - Manager host

  • If the jpchosts or hosts file is used, whether the IP address is correctly set in the file on the PFM - Manager and PFM - Agent or PFM - RM hosts

  Performance Management performs name resolution in the order of jpchosts, hosts, and DNS.

  Tip

  Ping traffic might be able to pass through firewalls depending on their settings. If communications via ping traffic are possible but the Performance Management system cannot perform communications, check the firewall routing.

• The firewall routing is the cause of a problem.

  If a firewall is configured between PFM - Manager and PFM - Agent or between PFM - Manager and PFM - RM, check whether fixed ports are assigned to PFM - Manager, PFM - Agent and PFM - RM, and whether traffic is allowed to pass through the firewalls.

  For details on firewall routing, see the manual JP1/Performance Management Reference.

• Non-existent PFM - Agent or PFM - RM in the system is selected.

  When you execute jpctool service list -id * -host * on the PFM - Manager host, check whether the old host names are displayed.

  If the old host names are displayed, on the PFM - Manager host, execute the jpctool service delete command to delete the service information of agents. Then execute the jpctool service sync command to synchronize the service information registered in PFM - Manager and PFM - Web Console.

  For details on the commands, see the chapter that describes commands in the manual JP1/Performance Management Reference.

To Page Top