Method and apparatus for managing multiple instances of...

Details Method and apparatus for managing multiple instances of... Method and apparatus for managing multiple instances of...

2005-08-23

2005-08-23

Bullock, Jr., Lewis A. (Department: 2195)

Electrical computers and digital processing systems: interprogra

Miscellaneous

C719S315000, C709S209000

Reexamination Certificate

active

06934952

ABSTRACT:
When multiple copies of a software program reside on a single machine and need to cooperate with each other to coordinate certain aspects of their execution, an election process is conducted to elect one of the copies as a master or supervisor copy, with the non-elected copies becoming slave or subordinate copies. Since only one of the programs can succeed in being assigned the supervisor port number, the first program to have its socket assigned to the supervisor port number becomes the supervisor (e.g., the master) program; the other programs respond to the failure of their request by assuming the role of a subordinate (e.g., a slave) program.

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