International Business Machines Corporation

Mark D Cooper

Tian-Jy Chao

Christopher Daniel Filachek

Colette A Mastrangelo

Sarat Vemuri

Daniel S Gritter

Joshua B Wisniewski

Isa M Torres

Mei Hui Wang

Adris E Hoyos

James D Johnston, Jr

Kenneth H Warner

Samuel K Lee

Shonta S Singleton

Application servers having multiple virtual machines are restarted by sequentially addressing each active virtual machine (VM) by adding a corresponding new VM prior to stopping the active VM before adding another new VM corresponding to another of the multiple virtual machines to be restarted. Application servers are monitored for restart conditions that trigger a sequential process of adding a new VM and stopping the corresponding active VM.

Restarting application servers

Methods, systems, and computer program products for implementing a real-time, user configurable, debugging framework for use in debugging applications. A method includes executing an application on a computer, the application comprising a plurality of instructions including a debug macro instruction. The debug macro instruction is associated with a set of parameters for describing one or both of system and application conditions. The method also includes specifying one or more trigger criteria, the trigger criteria comprising a set of dynamic values for the set of parameters. The method further performing, while the application is executing, executing the debug macro instruction, detecting whether the trigger criteria have been met by the application, the detecting in response to executing the debug macro instruction, and upon detecting that the trigger criteria have been met, initiating a debugging session in response to the detecting.

Real-time user configurable debugging framework

Continuous server service is provided during switching from a current server version to a new server version. After initiating switching, a socket associated with the current server version is left open so that the socket may continue to receive client calls. The socket is then associated with the new server version and client calls received during switching are buffered and subsequently processed by the new server version after switching is complete.

Method, apparatus and computer program product for automatically restarting an RPC server without losing client RPC calls

An apparatus allowing a pair of interrelated C language operations, in particular a setjmp/longjmp and a signal/raise functions to be completed across a plurality of load modules. Upon the issuance of a first instruction or function, such as a setjmp, all information pertaining to the current running processing sub-environment that has been established by a first load module is saved in the memory in any location. Later, upon the issuance of a second and complementary instruction or function, such as a longjmp, issued from a different processing sub-environment established by a different load module, the computer's system stack is searched until the entry for the original processing environment is found. Then once it is established which initial environment the second instruction or function is related to, that information is retrieved from the previously stored memory location and the instruction or function is completed successfully.

Use of language instructions and functions across multiple processing

A method of allowing a pair of C language operations, in particular a setjmp/longjmp and a signal/raise functions to be completed across a plurality of load modules. Upon the issuance of a first instruction, such as a setjmp, all information pertaining to the current running processing sub-environment that has been established by a first load module is saved in the memory in any location. Later, upon the issuance of a second and complementary instruction, such as a longjmp, issued from a different processing sub-environment established by a different load module, the computer's system stack is searched until the entry for the original processing environment is found. Then once it is established which initial environment the second instruction is related to, that information is retrieved from the previously stored memory location and the instruction is completed successfully.

Growing community of inventors

Poughkeepsie, NY, United States of America

Mark D Cooper