REDUCING TRANSACTION OPERATIONS USING DEFERRED OPERATIONS

• US 20150006592A1
• Filed: 11/15/2013
• Published: 01/01/2015
• Est. Priority Date: 06/26/2013
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Inventors: Avati, Anand Vishweswaran, Karampuri, Pranith Kumar
• Granted Patent: US 9,535,926 B2
• Time in Patent Office: Days
• US Class Current: 707/826
• CPC Class Codes: G06F 16/1865 Transactional file systems

Abstract

A server computer system performs a first set of operations for a first transaction. The first transaction pertaining to data stored in a file system. The server computer system delays a second set of operations for the first transaction and identifies a second transaction pertaining to the data. In response to identifying the second transaction, the server computer system cancels the second set of operations for the first transaction, and cancels a first set of operations for the second transaction.

Claims

1. A method comprising:

performing a first set of operations for a first transaction, the first transaction pertaining to data stored in a file system;

delaying, by a server computer system, a second set of operations for the first transaction;

identifying a second transaction pertaining to the data; and

in response to identifying the second transaction, canceling the second set of operations for the first transaction, and canceling a first set of operations for the second transaction.

2. The method of claim 1, wherein the first transaction and the second transaction correspond to a same file descriptor.

3. The method of claim 1, wherein the second set of operations for the first transaction comprises:

at least one of a post-operation change log operation or an unlock operation.

4. The method of claim 1, wherein the first set of operations for the second transaction comprises:

at least one of a lock operation or a pre-operation change log operation.

5. The method of claim 1, wherein the first transaction and the second transaction overlap in time.

6. The method of claim 1, wherein canceling the second set of operations for the first transaction is performed prior to performing the second set of operations for the first transaction.

7. The method of claim 1, further comprising:

delaying a third set of operation for the first transaction;

canceling the third set of operations for the first transaction; and

canceling a second set of operations for the second transaction.

8. A non-transitory computer-readable storage medium including instructions that, when executed by a processing device, cause the processing device to perform operations comprising:

performing a first set of operations for a first transaction, the first transaction pertaining to data stored in a file system;

delaying, by the processing device, a second set of operations for the first transaction;

identifying a second transaction pertaining to the data; and

in response to identifying the second transaction, canceling the second set of operations for the first transaction, and canceling a first set of operations for the second transaction.

9. The non-transitory computer-readable storage medium of claim 8, wherein the first transaction and the second transaction correspond to a same file descriptor.

10. The non-transitory computer-readable storage medium of claim 8, wherein the second set of operations for the first transaction comprises:

at least one of a post-operation change log operation or an unlock operation.

11. The non-transitory computer-readable storage medium of claim 8, wherein the first set of operations for the second transaction comprises:

at least one of a lock operation or a pre-operation change log operation.

12. The non-transitory computer-readable storage medium of claim 8, wherein the first transaction and the second transaction overlap in time.

13. The non-transitory computer-readable storage medium of claim 8, wherein canceling the second set of operations for the first transaction is performed prior to performing the second set of operations for the first transaction.

14. A system comprising:

a memory;

a processing device coupled to the memory to;

perform a first set of operations for a first transaction, the first transaction pertaining to data stored in a file system;

delay a second set of operations for the first transaction;

identify a second transaction pertaining to the data; and

in response to identifying the second transaction, cancel the second set of operations for the first transaction, and cancel a first set of operations for the second transaction.

15. The system of claim 14, wherein the first transaction and the second transaction correspond to a same file descriptor.

16. The system of claim 14, wherein the second set of operations for the first transaction comprises:

at least one of a post-operation change log operation or an unlock operation.

17. The system of claim 14, wherein the first set of operations for the second transaction comprises:

at least one of a lock operation or a pre-operation change log operation.

18. The system of claim 14, wherein the first transaction and the second transaction overlap in time.

19. The system of claim 14, wherein the second set of operations for the first transaction is canceled prior to performing the second set of operations for the first transaction.

20. The system of claim 14, wherein the processing device is further to:

delay a third set of operation for the first transaction;

cancel the third set of operations for the first transaction; and

cancel a second set of operations for the second transaction.