| 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.
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