US 2007/0169167 A1Published application

Control device and control method information system

AssigneeHitachi, Ltd.

InventorsTomohiro Morimura, Yoshimasa Masuoka, Naoki Utsunomiya

Life of this patent

Estimating the term…

Loading patent…

Abstract

A technique of performing concurrency control of policies is provided, which makes it possible to efficiently utilize resources of an overall information system. According to the present invention, a policy execution device creates a list of components of a application system which are influenced by execution of an action of a policy instance, for respective policy instances. If trigger conditions of another policy instance are newly met during execution of a policy instance, the policy execution device compares a list of components of the policy instance presently being executed with a list of components of the policy instance whose trigger conditions are newly met. If there are no common components in the lists, the policy execution device executes the policy instance whose trigger conditions are newly met, and if there are common components in the lists, the policy execution device suspends the policy instance whose trigger conditions are newly met.

Claims20

Dependent claims

A control device for controlling an information system constituting an application system, comprising:

a configuration information storage unit which stores application system configuration information including connection information on respective components constituting the application system to be operated;
a policy storage unit which stores a policy including an action entry including a description of a component to be operated and of an operation to be executed by the component, and a trigger condition entry including a description of a condition for triggering the component to execute the operation;
a list storage unit which stores a list including a component to be operated described in the action entry of a policy, and all components connected downstream of the component, for the respective policies stored in the policy storage unit, according to the application system configuration information stored in the configuration information storage unit;
an event reception section which receives an event occurring in the information system;
and
a policy executing section which executes an operation described in the action entry of a policy including a trigger condition entry corresponded to the event received by the event receiving section, wherein:
the policy execution section compares, when a policy including a trigger condition entry corresponded to the event received by the event reception sectin is newly detected during execution of a policy, a list which is stored in the list storage unit as being associated with the policy being executed, with a list which is stored in the list storage unit as being associated with the newly detected policy;
when both of the policies do not include a common component, the policy executing section executes the newly detected policy;
and
when both of the policies include a common component, the policy executing section suspends the execution of the newly detected policy.

7 more elements

A control device for controlling an information system constituting an application system, comprising:

a configuration information storage unit which stores application system configuration information including connection information on respective components constituting the application system to be operated;
a policy storage unit which stores a policy including an action entry including a description of a component to be operated and of an operation to be executed by the component, and a trigger condition entry including a description of a condition for triggering the component to execute the operation;
a list storage unit which stores a list including a component to be operated described in the action entry of a policy, and all components connected downstream of the component, for the respective policies stored in the policy storage unit, according to the application system configuration information stored in the configuration information storage unit;
an operation result reception section which receives a result of an operation performed in the information system;
and
a policy executing section which executes an operation described in the action entry of a policy including a trigger condition entry corresponded to the operation result received by the operation result reception section, wherein:
the policy execution section compares, when a policy including a trigger condition entry corresponded to the operation result received by the operation result reception section is newly detected during execution of a policy, a list which is stored in the list storage unit as being associated with the policy being executed, with a list which is stored in the list storage unit as being associated with the newly detected policy;
when both of the policies do not include a common component, the policy executing section executes the newly detected policy;
and
when both of the policies include a common component, the policy executing section suspends the execution of the newly detected policy.

7 more elements

A control method for an information system in which a control device constitutes an application system, the control device comprising:

a configuration information storage unit which stores application system configuration information including connection information on respective components constituting the application system to be operated;
a policy storage unit which stores a policy including an action entry including a description of a component to be operated and of an operation to be executed by the component, and a trigger condition entry including a description of a condition for triggering the component to execute the operation;
a list storage unit which stores a list including a component to be operated described in the action entry of a policy, and all components connected downstream of the component, for the respective policies stored in the policy storage unit, according to the application system configuration information stored in the configuration information storage unit, the control method comprising the steps of:
receiving an event occurring in the information system;
and
executing an operation described in the action entry of a policy including a trigger condition entry corresponded to the event received by the event receiving section,
wherein, the step of executing further comprises the steps of:
when a policy including a trigger condition entry applicable to an event received by the event receiving section is newly detected during execution of a policy, comparing a list which is stored in the list storage unit as being associated with the policy being executed, with a list which is stored in the list storage unit as being associated with the newly detected policy;
when both of the policies do not include a common component, executing the newly detected policy;
and
when both of the policies include a common component, suspending the execution of the newly detected policy.

8 more elements

A computer-readable program which causes a computer to function as:

a configuration storage unit which stores application system configuration information including connection information on respective components constituting the application system to be operated;
a policy storage unit which stores a policy including an action entry including a description of a component to be operated and of an operation to be executed by the component, and a trigger condition entry including a description of a condition for triggering the component to execute the operation;
a list storage unit which stores a list including a component to be operated described in the action entry of a policy, and all components connected downstream of the component, for the respective policies stored in the policy storage unit, according to the application system configuration information stored in the configuration information storage unit;
an event reception section which receives an event occurring in the information system;
and
a policy executing section which executes an operation described in the action entry of a policy including a trigger condition entry corresponded to the event received by the event receiving section, wherein:
the policy execution section compares, when a policy including a trigger condition entry corresponded to the event received by the event receiving section is newly detected during execution of a policy, a list which is stored in the list storage unit as being associated with the policy being executed, with a list which is stored in the list storage unit as being associated with the newly detected policy;
when both of the policies do not include a common component, the policy executing section executes the newly detected policy;
and
when both of the policies include a common component, the policy executing section suspends the execution of the newly detected policy.

7 more elements

Dependencies are inferred from the claim text.