Possible causes and solutions:

• A Performance Management program was uninstalled without its service information being deleted.
  Service information for a Performance Management program remains in the database even after the program has been uninstalled. Execute the jpctool service delete (jpcctrl delete) command to delete the service information. For details about how to delete service information, see the chapter that describes installation and setup in the Job Management Partner 1/Performance Management Planning and Configuration Guide.
  
• The host name of the machine was changed without deleting Performance Management program service information.
  If the host name of a machine was changed without deleting Performance Management program service information, the service information corresponding to service IDs that were associated with the previous host name remains in the database that the Master Manager service manages. Execute the jpctool service delete (jpcctrl delete) command to delete the service information. For details about how to delete service information, see the chapter that describes installation and setup in the Job Management Partner 1/Performance Management Planning and Configuration Guide.
  

Specifying the same export file name for the same Master Store or Agent Store service in multiple executions of the jpctool db dump (jpcctrl dump) command causes the initial output results to be overwritten by the subsequent output results. Specify a different export file name each time you execute the jpctool db dump (jpcctrl dump) command for the same Master Store or Agent Store service. For details about how to export the Store database, see the chapter that describes management of operation monitoring data in the Job Management Partner 1/Performance Management User's Guide.