Trash Daemon

• US 20120150819A1
• Filed: 12/16/2011
• Published: 06/14/2012
• Est. Priority Date: 06/19/2009
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Dole, Bryn Robert, Markson, Michael, Peters, Keith, Saliba, Robert Michael, Skrenta, Rich, Truel, Robert N., LINDAHL, Gregory B.
• Granted Patent: US 11,055,270 B2
• Time in Patent Office: Days
• US Class Current: 707/687
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/2282 Tablespace storage structures; Management thereof
• CPC Class Codes: G06F 16/24554 Unary operations; Data partitioning operations
• CPC Class Codes: G06F 16/2462 Approximate or statistical queries
• CPC Class Codes: G06F 16/273 Asynchronous replication or reconciliation
• CPC Class Codes: G06F 16/285 Clustering or classification
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques

Abstract

A method of managing a database system that includes a swarm database with nodes of processors and memory. The memory stores programs that can be executed on the processors. Determining data files to delete, moving the data files to delete to a trash directory, truncating using a trash daemon, larger files to delete to smaller sized file pieces and deleting the smaller sized file pieces by a local operation system.

Claims

1. A method of managing a database system comprising:

at a swarm database system having one or more nodes comprising one or more processors and memory, the memory of the one or more nodes storing one or more programs to be executed by the one or more processors;

determining one or more data files to delete;

moving the one or more data files to delete to a trash directory;

truncating, by a trash daemon, one or more larger data files to delete to smaller sized file pieces; and

deleting the smaller sized file pieces by a local operation system.