公开(公告)号：JP2011060292A

公开(公告)日：2011-03-24

申请号：JP2010203477

申请日：2010-09-10

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： NEWPORT WILLIAM T ,  STECHER JOHN JOSEPH

IPC: G06F12/00

CPC classification number: G06F17/30581 ,  G06F17/30578

Abstract: PROBLEM TO BE SOLVED: To use a combination of synchronous and asynchronous replication in order to replicate a local database to a replicated database.
SOLUTION: The typical tradeoff between synchronous and asynchronous replication is optimized by using hybrid replication. The hybrid replication is to use the synchronous replication for inserting new data and the asynchronous replication for updating existing data. The combined use of synchronous and asynchronous replications in this manner provides an efficient replicated database where the replicated database can tolerate some delay in data updates but requires "no data loss" of new data.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：使用同步和异步复制的组合，以便将本地数据库复制到复制数据库。 解决方案：通过使用混合复制来优化同步和异步复制之间的典型折衷。 混合复制是使用同步复制来插入新数据和用于更新现有数据的异步复制。 以这种方式组合使用同步和异步复制提供了一个高效的复制数据库，其中复制数据库可以容忍数据更新中的一些延迟，但需要新数据“无数据丢失”。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：CA2634360A1

公开(公告)日：2007-06-28

申请号：CA2634360

申请日：2006-12-13

Applicant: IBM

Inventor： STECHER JOHN JOSEPH ,  SANTOSUOSSO JOHN MATTHEW ,  BARSNESS ERIC LAWRENCE

IPC: H04L29/08 ,  G06F11/30

Abstract: A web server comprising multiple computer systems includes at least one system which maintains a database of redundant session-persistent data on behalf of other systems which process HTTP session workloads for clients. A session analyzer extracts information from this redundancy database to characterize HTTP session workloads. Preferably, session workloads are processed by middleware comprising an application server and one or more applications. The application server maintains session-persistent data as data objects, and automatically updates the database of redundant data which responses are transmitted to a clients. The session analyzer independently extracts data from the redundant database to characterize the session workloads. Optionally, the analyzer includes an intelligent inferencing function which can make tuning recommendations from the extracted data.

公开(公告)号：BRPI0620640A2

公开(公告)日：2011-04-05

申请号：BRPI0620640

申请日：2006-12-13

Applicant: IBM

Inventor： BARSNESS ERIC LAWRENCE ,  SANTOSUOSSO JOHN MATTHEW ,  STECHER JOHN JOSEPH

IPC: H04L29/08

Abstract: A web server comprising multiple computer systems includes at least one system which maintains a database of redundant session-persistent data on behalf of other systems which process HTTP session workloads for clients. A session analyzer extracts information from this redundancy database to characterize HTTP session workloads. Preferably, session workloads are processed by middleware comprising an application server and one or more applications. The application server maintains session-persistent data as data objects, and automatically updates the database of redundant data which responses are transmitted to a clients. The session analyzer independently extracts data from the redundant database to characterize the session workloads. Optionally, the analyzer includes an intelligent inferencing function which can make tuning recommendations from the extracted data.