Hitachi

JP1 Version 12 JP1/Automatic Operation Overview and System Design Guide 


3.4.8 Evaluating the task retention period

You evaluate the retention period until a task whose processing has been completed is archived, the retention period until an archived task is deleted, and the retention period until a debug task is deleted.

Retention period until tasks are archived

A task whose processing has been completed is archived automatically from the list of tasks and displayed in the list of histories if either of the following conditions is satisfied:

  • The specified retention period has expired.

  • The specified maximum number of tasks has been reached.

If the number of tasks whose processing has been completed exceeds the specified maximum number of tasks, the excess tasks are archived automatically regardless of the specified retention period. Tasks whose retention period has expired are archived automatically even if the specified maximum number of tasks has not been reached.

Retention period until archived tasks are deleted

Among the tasks displayed in the list of histories, tasks that are in excess of the specified maximum number of tasks at the specified time are deleted automatically on a daily basis.

The service administrator must evaluate the following items, taking into account the task monitoring schedule:

  • Period during which tasks whose processing has been completed are to be retained in the list of tasks

  • Time at which tasks are to be archived automatically from the list of tasks, and time at which tasks are to be deleted automatically from the list of histories

  • Maximum number of tasks to be retained in the list of tasks

  • Maximum number of tasks to be retained in the list of histories

Retention period until debug tasks are deleted

A debug task generated during debugging is deleted without being archived if either of the following conditions is satisfied:

  • The specified retention period has expired.

  • The specified maximum number of tasks has been reached.

If the number of debug tasks whose processing has been completed exceeds the specified maximum number of tasks, the excess tasks are deleted automatically regardless of the specified retention period. Debug tasks whose retention period has expired are deleted automatically even if the specified maximum number of tasks has not been reached.

After you have installed JP1/AO, you use a user-specified properties file (config_user.properties) to specify the items related to task retention.

Only tasks which have been executed are archived automatically. If you attempt to run a new service while the number of tasks exceeds the specified maximum number of tasks to be retained in the list of tasks, an error occurs and no task will be generated. Therefore, to ensure that new services can be run, you must first estimate the number of tasks to be executed daily, and then specify the maximum number of tasks to be retained in the list of tasks. However, this limitation does not apply to recurring tasks which have been executed.