公开(公告)号：JP2000339287A

公开(公告)日：2000-12-08

申请号：JP2000105458

申请日：2000-04-06

Applicant: IBM

Inventor： CHESSELL AMANDA ELIZABETH ,  COCKS STEPHEN JAMES ,  WARR KATHRINE SARAH

IPC: G06F15/177 ,  G06F9/46 ,  G06F9/50 ,  G06F12/00 ,  G06F13/00 ,  G06F15/16

Abstract: PROBLEM TO BE SOLVED: To reduce the maintenance code for completely cleaning up a list at the time of transaction completion by maintaining a mapping list which correlates transactions to a server for maintaining the affinity of the transaction not in each server group but at a central position. SOLUTION: A server 31 accesses a mapping table 312 by using a server group identification included in a demand received from a server E and reads that a server C is arranged in a list regarding a server group 1. The server 31 returns the identification of the server C to the server E. Thus, the server E can designate that the server C should be contacted. Next, the server E transmits transactions to the server C. Thus, since the server C is always selected regarding specific transactions, the affinity of the transactions is maintained.

公开(公告)号：GB2326000A

公开(公告)日：1998-12-09

申请号：GB9808553

申请日：1998-04-23

Applicant: IBM

Inventor： BAINBRIDGE ANDREW JOHN ,  COCKS STEPHEN JAMES ,  FERGUSON DONALD FRANCIS ,  FREUND THOMAS ,  LEFF AVRAHAM ,  NORMINGTON GLYN ,  RAYFIELD JAMES THOMAS ,  STOREY ROBERT ANTHONY

IPC: G06F9/46 ,  G06F1/00

Abstract: In a data processing environment where a client 11 requests a server 12 to perform part of its processing, a method of updating the client's version of server-related data without requiring the client to be a server, includes steps of: receiving, at a control point server 13, a first request from the client requesting that server-related data be transferred from the control point server to the client; and in response to the first request, sending the server-related data from the control point server to the client, along with a unique bind token identifying a version number of the server-related data such that each time the server-related data changes a new unique bind token is associated with the data, where the client uses the server-related data to form a second request for the server to perform part of the client's processing, and where the client sends said bind token to the server as part of the second request.

公开(公告)号：GB2325999B

公开(公告)日：2001-11-21

申请号：GB9808132

申请日：1998-04-17

Applicant: IBM

Inventor： BAINBRIDGE ANDREW JOHN ,  COCKS STEPHEN JAMES ,  FERGUSON DONALD FRANCIS ,  FREUND THOMAS ,  LEFF AVRAHAM ,  NORMINGTON GLYN ,  RAYFIELD JAMES THOMAS ,  STOREY ROBERT ANTHONY

IPC: G06F9/50 ,  H04L29/06 ,  H04L29/08 ,  G06F9/46

Abstract: A method of performing workload management within an object-oriented client/server computing environment wherein one of a plurality of servers is chosen to satisfy a client request based on at least one workload management policy, said method, which takes place within the client, includes steps of: deciding whether a client application program has issued a request for a server to do some work; forming an extended object reference based on said request, said extended object reference having, in addition to a server address field and an object key field, at least one additional field; accessing workload management policy data based on said extended object reference; and selecting one of said plurality of servers based on said accessed workload management policy data.

公开(公告)号：GB2348985A

公开(公告)日：2000-10-18

申请号：GB9908477

申请日：1999-04-15

Applicant: IBM

Inventor： CHESSELL AMANDA ELIZABETH ,  COCKS STEPHEN JAMES ,  WARR KATHRINE SARAH

IPC: G06F15/177 ,  G06F9/46 ,  G06F9/50 ,  G06F12/00 ,  G06F13/00 ,  G06F15/16

Abstract: In a client/server system where a client sends a work request to a server which includes a group of workload managed server processes each of which is capable of performing the work request, a server apparatus running a server process has: a data storage unit storing mapping data which maps a particular server process to each of a plurality of groups of workload managed server processes; a means for receiving from a client a request for the identity of the mapped server process corresponding to a particular group of workload managed server processes, the particular group being specified in the request; a means for accessing the data storage unit to determine, for the particular group specified in the received request, the identity of the mapped server process; and a means for returning the identity of the mapped server process to the client; wherein the request received from the client is associated with an entity whose lifetime is coupled to the lifetime of the server process. The advantage is that by maintaining a dynamic process mapping list in a central location only for a finite time the risk of a system crash wiping out the mapping list data is greatly reduced.

公开(公告)号：GB2326000B

公开(公告)日：2001-11-21

申请号：GB9808553

申请日：1998-04-23

Applicant: IBM

Inventor： BAINBRIDGE ANDREW JOHN ,  COCKS STEPHEN JAMES ,  FERGUSON DONALD FRANCIS ,  FREUND THOMAS ,  LEFF AVRAHAM ,  NORMINGTON GLYN ,  RAYFIELD JAMES THOMAS ,  STOREY ROBERT ANTHONY

IPC: G06F9/46 ,  G06F1/00

Abstract: In a data processing environment where a client requests a server to perform part of its processing, a method of updating the client's version of server-related data without requiring the client to be a server, includes steps of: receiving, at a control point server, a first request from the client requesting that server-related data be transferred from the control point server to the client; and in response to the first request, sending the server-related data from the control point server to the client, along with a unique bind token identifying a version number of the server-related data such that each time the server-related data changes a new unique bind token is associated with the data, where the client uses the server-related data to form a second request for the server to perform part of the client's processing, and where the client sends said bind token to the server as part of the second request.

公开(公告)号：GB2325999A

公开(公告)日：1998-12-09

申请号：GB9808132

申请日：1998-04-17

Applicant: IBM

Inventor： BAINBRIDGE ANDREW JOHN ,  COCKS STEPHEN JAMES ,  FERGUSON DONALD FRANCIS ,  FREUND THOMAS ,  LEFF AVRAHAM ,  NORMINGTON GLYN ,  RAYFIELD JAMES THOMAS ,  STOREY ROBERT ANTHONY

IPC: G06F9/50 ,  H04L29/06 ,  H04L29/08 ,  G06F9/46

Abstract: A method of performing workload management within an object-oriented client/server computing environment wherein one of a plurality of servers is chosen to satisfy a client request based on at least one workload management policy, takes place within the client and includes steps of: deciding whether a client application program has issued a request for a server to do some work; forming an extended object reference based on said request, said extended object reference having, in addition to a server address field and an object key field, at least one additional field; accessing workload management policy data based on said extended object reference; and selecting one of said plurality of servers based on said accessed workload management policy data.