Interstage Shunsaku Data Manager Operator's Guide - Microsoft(R) Windows(R) 2000/ Microsoft(R) Windows Server(TM) 2003 - - UNIX -

D.3.4 The Size of Director Log Files

The formula for estimating the size of director log files is shown below.

Definition unit	Variable elements	Size (bytes)
The size of director log file when starting a director	The number of times that the director is started The number of connected searchers The number of stored records (*1) Standard record size	The number of times that the director is started x ((2,000 + 500 x The number of connected searchers) + 100 x [(The number of stored records x Standard record size) / (1,024 x 1,024)]) Note: The result in [ ] has to be rounded up
The size of the log for search process	The number of search API that are executed (*2)	370 x The number of search API that are executed
The size of the log for update process	The number of update API that are executed (*3)	430 x The number of update API that are executed
The size of the log when executing shundimport command	The number of executions by shundimport The size of the file to be imported (in byte) (*4)	The number of executions by shundimport x (2,000 + 100 x [The size of the file to be imported /(1,024 x 1,024)) Note: The result in [ ] has to be rounded up
The size of the log when executing director commands	The number of times that the director command is executed (*5)	700 x The number of times that the director command is executed

*1) The number of stored records when starting the director.

*2) Including the search process, sort process, aggregation process and the search process specified by the direct access key.

*3) Including the add process, delete process, update process, and the update or delete process specified by the direct access key.

*4) The average file size of the XML document stored in Shunsaku using shundimport command with the -f option.

*5) The director commands not including the command for starting director, shundimport command and shundstate command.

Example Calculation

An example calculation for the size of a director log file is shown below.

If the variable elements are as follows:

• The number of times that the director is started: 5 (times)
• The number of connected searchers: 3
• The number of stored records: 100,000 (records)
• Standard record size: 4,000 (bytes)
• The number of search API that are executed: 10,000
• The number of update API that are executed: 10,000
• The number of executions by shundimport: 5 (times)
• The size of the file to be imported: 1,000,000 (bytes)
• The number of times that the director command is executed: 10 (times)

The size of director log file when starting a director

5 x ((2,000 + 500 x 3) + 100 x [(100,000 x 4,000)/(1,024 x 1,024)])=208,500 bytes (approx. 203 KB)

The size of the log for search process

370 x 10,000 = 3,700,000 bytes (approx. 3.5 MB)

The size of the log for update process

430 x 10,000 = 4,300,000 bytes (approx. 4 MB)

The size of the log when executing shundimport command

5 x (2,000 + 100 x [1,000,000/(1,024 x 1,024)])=10,500 bytes (approx. 10 KB)

The size of the log when executing director commands

700 x 10 = 7,000 bytes (approx. 7 KB)