GB2256069B - Transaction processing - Google Patents
Transaction processingInfo
- Publication number
- GB2256069B GB2256069B GB9111191A GB9111191A GB2256069B GB 2256069 B GB2256069 B GB 2256069B GB 9111191 A GB9111191 A GB 9111191A GB 9111191 A GB9111191 A GB 9111191A GB 2256069 B GB2256069 B GB 2256069B
- Authority
- GB
- United Kingdom
- Prior art keywords
- records
- recovery
- processors
- transaction
- log records
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
- G06F11/183—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components
- G06F11/184—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components where the redundant components implement processing functionality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/82—Solving problems relating to consistency
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
A transaction processing system (for processing transactions involving several linked processors) has a master transaction manager (TM) controlling a number of resource managers (RMs) and associated resources, possibly through subordinate TMs. To ensure that consistency is maintained throughout the system, a 2-phase protocol is used, with Prepare and Commit states, so that all resources are updated to reflect the transaction (or the system reverts to its original state). This involves keeping log records at various processors. On a failure such as a processor crash, the failed processor recovers using records obtained from other processors. A TM 13 stores log records received from various subordinate RPs each record including a recovery field REG containing information about the RP organization. For recovery, the RP sends a request for log records and a mask field, and the TM 13 selects those records which match the enabled parts of the REC field. The RP can thus determine, depending on the nature of the failure, what records are required; eg for a particular recovery supervisor or a particular resource. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9111191A GB2256069B (en) | 1991-05-23 | 1991-05-23 | Transaction processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9111191A GB2256069B (en) | 1991-05-23 | 1991-05-23 | Transaction processing |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9111191D0 GB9111191D0 (en) | 1991-07-17 |
GB2256069A GB2256069A (en) | 1992-11-25 |
GB2256069B true GB2256069B (en) | 1994-09-07 |
Family
ID=10695505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9111191A Expired - Fee Related GB2256069B (en) | 1991-05-23 | 1991-05-23 | Transaction processing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2256069B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996023258A1 (en) * | 1995-01-23 | 1996-08-01 | Tandem Computers Incorporated | Tracking the state of transactions |
GB2301686A (en) * | 1995-06-03 | 1996-12-11 | Ibm | Transaction synchronisation procedure in a routing node |
GB2301909A (en) * | 1995-06-07 | 1996-12-18 | Ibm | Reduction of logging in distributed transaction processing systems |
JP3647512B2 (en) * | 1995-08-04 | 2005-05-11 | 富士通株式会社 | Maintenance method for wide area workflow system |
US6014669A (en) * | 1997-10-01 | 2000-01-11 | Sun Microsystems, Inc. | Highly-available distributed cluster configuration database |
CN108710557B (en) * | 2018-04-20 | 2021-10-19 | 烽火通信科技股份有限公司 | Method and system for judging data consistency of distributed software program |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0336546A2 (en) * | 1988-04-08 | 1989-10-11 | International Business Machines Corporation | System and method for data recovery in a database on a computer system after an error in the system |
-
1991
- 1991-05-23 GB GB9111191A patent/GB2256069B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0336546A2 (en) * | 1988-04-08 | 1989-10-11 | International Business Machines Corporation | System and method for data recovery in a database on a computer system after an error in the system |
Also Published As
Publication number | Publication date |
---|---|
GB2256069A (en) | 1992-11-25 |
GB9111191D0 (en) | 1991-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990523 |