Abstract: In an application execution system having a plurality of application servers, each application server stores a plurality of applications, and has computational resources for executing applications in response to received requests. Each application server also includes instructions for loading a respective application into volatile storage and executing the application in response to a request from a client, and for returning a result. In addition, each application server includes instructions for conditionally terminating execution of the respective application prior to returning the result if the respective application violates any execution restriction. The execution restrictions may include: a response time limit; an average response time limit over multiple executions of the application; a volatile memory usage limit; a restriction on using non-volatile storage of the application server; and a requirement limiting where state information is stored.

Abstract: In an application execution system having a plurality of application servers, each application server includes non-volatile storage for storing a plurality of applications, volatile storage and computational resources for executing applications in response to requests received by the application execution system and for returning results to the requestors. In addition, each application server includes instructions for conditionally terminating execution of the respective application prior to returning the result if the respective application violates any of a plurality of execution restrictions. The execution restrictions in aggregate maintain scalability of the application execution system with respect to at least one or more of the following limits: number of applications that can be executed and number of requests that can be processed per period of time.