LOG DATA COMPRESSION PROGRAM AND METHOD

• Main Authors: MURATA NORIAKI, SASAGE HIROSHI
• Format: Patent
• Language: English
• Published: 04.10.2007
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

PROBLEM TO BE SOLVED: To solve the problem that it takes a long time to decompress all log records in compressing and restoring log records, and that a data area is wasted not in compressing any log record at all. SOLUTION: This log data compression program is provided to make a computer function as follows: an update log file as the object of storage; a reflection time DB in which a data reflection time per unit quantity is stored; a decompression time DB in which a data decompression time per unit quantity is stored; a reflection time calculation means for calculating the total sum of the data reflection time from the leading log of log data; a decompression time calculation means for calculating the total sum of the data decompression time from the tailing log of the storage object log data; and a compression processing means for comparing the total sum of the reflection time with the total sum of the decompression time, and for acquiring the data of the next log number about the time whose total sum is smaller, and for comparing the log number of the calculation object of the reflection time with the log number of the calculation object of the decompression time, and for, when the log number of the reflection time is equal to the log number of the decompression time, performing compression processing to the log data included in the total sum of the decompression time. COPYRIGHT: (C)2008,JPO&INPIT