摘要:
A method (300;600) and system for monitoring distributed applications (for example, running on multiple WAS nodes of a cluster) is proposed. The solution of the invention is based on a self-adaptive resource management infrastructure. Particularly, an authority publishes (306-312) a plurality of rules, each one defining a desired target configuration for a category of subjects. A membership controller on each subject is responsible to assign (315-333) the subject to the respective category; a compliance engine then retrieves and applies (336-351) the rules corresponding to the category of the subject. The resource management infrastructure is used to implement a monitoring on-demand of the distributed application. For this purpose, two rules are defined (603-606) for the WAS nodes having the distributed application in a running condition and in a non-running condition, respectively. Each WAS node having the distributed application in the running condition applies (639-645) the first rule, so as to start the monitoring application; as soon as the distributed application switches to the non-running condition, the WAS node applies (654-657) the second rule, so as to stop the monitoring application automatically.
摘要:
A method (300;600) and system for monitoring distributed applications (for example, running on multiple WAS nodes of a cluster) is proposed. The solution of the invention is based on a self-adaptive resource management infrastructure. Particularly, an authority publishes (306-312) a plurality of rules, each one defining a desired target configuration for a category of subjects. A membership controller on each subject is responsible to assign (315-333) the subject to the respective category; a compliance engine then retrieves and applies (336-351) the rules corresponding to the category of the subject. The resource management infrastructure is used to implement a monitoring on-demand of the distributed application. For this purpose, two rules are defined (603-606) for the WAS nodes having the distributed application in a running condition and in a non-running condition, respectively. Each WAS node having the distributed application in the running condition applies (639-645) the first rule, so as to start the monitoring application; as soon as the distributed application switches to the non-running condition, the WAS node applies (654-657) the second rule, so as to stop the monitoring application automatically.
摘要:
In an autonomic management method for self-configuring a subject entity in a data processing system, the subject entity retrieves, from a set of rules published by an authority entity, one or more rules corresponding at least one category of the subject entity. Each rule defines a desired state for a category, and at least one retrieved rule includes at least one formal parameter defining a correlation with at least one further category. For each retrieved rule, the subject entity resolves each formal parameter included in the retrieved rule by associating each further category specified in the formal parameter with at least one further subject entity belonging to the further category. The subject entity also applies the retrieved rule to configure the subject entity according to the desired state specified in the retrieved rule.
摘要:
A self-adaptive resource management method and a corresponding system are proposed. In the solution of the invention, an authority (105) publishes multiple rules into a corresponding repository (115). Each rule defines a desired target configuration for a category of subjects (110). Some of the rules can be conditioned to an authorization for their application on the subjects (by means of an optional enabling code). Whenever a generic subject tries to apply a conditioned rule, a test is made to verify whether the application of the rule has been authorized for the subject; if not, the subject is considered not compliant with the rule for a lack of authorization. A supervisor (135) authorizes each enabling code in an asynchronous way (with respect to the application of the corresponding rules); for example, the supervisor can authorize the enabling code for specific subjects, for a group of subjects (defined either statically by a list of subjects or dynamically by their characteristics), or for all the subjects. In this way, the application of the rules on the different subjects can be controlled centrally (for example, during a transition from a resource management system based on the enforcement model) without impairing the self-adaptive model.
摘要:
A resource management method (300) and a corresponding system are proposed. In the solution of the invention, an authority publishes (324) multiple rules, each one defining a desired target configuration for a category of subjects (without any information about their dependencies). Each subject retrieves (320-322, 326) the rules corresponding to its category in a random order. The rules are then applied (427-439) on the subject according to a trial-and-fail approach. Particularly, the application of any failed rule is continually repeated (427-448), until all the rules are successfully applied (463) or a deadlock condition is detected (451). In this way, any dependency is automatically resolved on the subject at run time. Moreover, as soon as all the rules have been successfully applied the compliance of the subject to the rules is verified (455-457) again; should the subject be not compliant to one or more rules any longer, an infinite loop condition is detected (466).
摘要:
A self-adaptive resource management method and a corresponding system. An authority publishes multiple rules into a corresponding repository. Each rule defines a desired target configuration for a category of subjects. Some rules are also associated with a corresponding stage in a predefined flow of application of the rules. A supervisor publishes the value of a current stage into a workflow repository. Each subject retrieves and applies the rules for its category and corresponding to the current stage. Information about the compliance of the subjects with the corresponding rules is published in a membership data repository. The supervisor detects the completion of the current stage when the subjects are compliant with the corresponding rules, and updates the value of the current stage to start a further stage.
摘要:
A self-adaptive resource management method (200) is proposed. The method is based on an authority (105) that publishes multiple rules into a corresponding repository (115). Each rule defines a desired target configuration for a category of subjects (110); each category is specified by one or more attributes that are evaluated by corresponding scanners (233-239). Whenever new rules are published, a dedicated module (120) creates and publishes further rules for selectively installing the scanners that are required for evaluating the attributes included in the categories of the new rules. These further rules are defined according to an algorithm that attempts to minimize the cost involved by the installation of the scanners.
摘要:
A method (300) for planning assignment of floating licenses of software products is proposed. Floating licenses can be requested to a runtime server by multiple workstations (to which they are assigned until a maximum number of instances of the product are running concurrently). In the solution of the invention, a user of every workstation needing to run the product in a future timeframe submits (306) a corresponding reservation request to the runtime server. If at least one license is available for the selected timeframe, the runtime server reserves (357) the license to the workstation (so as to prevent assigning it to other workstations for the same period); at the same time, a corresponding temporary permission is stored (360) on the workstation. In this way, the product can be used (363-387) during the selected timeframe on the workstation only; this is possible without any risk even if the workstation is disconnected from the runtime server.
摘要:
A self-adaptive resource management method and a corresponding system. An authority publishes multiple rules into a corresponding repository. Each rule defines a desired target configuration for a category of subjects. Some rules are also associated with a corresponding stage in a predefined flow of application of the rules. A supervisor publishes the value of a current stage into a workflow repository. Each subject retrieves and applies the rules for its category and corresponding to the current stage. Information about the compliance of the subjects with the corresponding rules is published in a membership data repository. The supervisor detects the completion of the current stage when the subjects are compliant with the corresponding rules, and updates the value of the current stage to start a further stage.
摘要:
A self-adaptive resource management method (200) is proposed. The system is based on an authority (105) that publishes multiple rules into a corresponding repository (115). Each rule defines a desired target configuration for a category of subjects (110); each category is specified by one or more attributes that are evaluated by corresponding scanners (233-239). Whenever new rules are published, a dedicated module (120) creates and publishes further rules for selectively installing the scanners that are required for evaluating the attributes included in the categories of the new rules. These further rules are defined according to an algorithm that attempts to minimize the cost involved by the installation of the scanners.