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

D.5.2 The Size of Searcher Log Files

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

Definition unit	Variable elements	Size (bytes)
The size of searcher log file when starting a searcher	The number of times that the searcher is started The number of stored records in the connected director Standard record size The number of searchers (*1)	The number of times that the searcher is started x (2,500 + (350 x [((The number of stored records in the connected director x Standard record size)/The number of searchers)/(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)	750 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)	620 x The number of update API that are executed
The size of the log for the adding process with shundimport command	The number of executions by shundimport The size of the file to be imported (in byte) (*4) The number of searchers (*1)	360 x The number of executions by shundimport [(The size of the file to be imported / The number of searchers) / (1,024 x 1,024)] Note: The result in [ ] has to be rounded up

*1) The number of searchers that are connecting to the director.

*2) Including the search process, sort process and aggregation process.

*3) Including the add process, delete process, update process, and the update or deleted 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.

Example Calculation

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

If the variable elements are as follows:

• The number of times that the searcher is started: 5 (times)
• The number of stored records in the connected director: 100,000 (records)
• Standard record size: 4,000 (bytes)
• The number of searchers: 3
• 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
• The size of the file to be imported: 1,000,000 (bytes)

The size of searcher log file when starting a searcher

5 x (2,500 + (350 x [((100,000 x 4,000)/3)/(1,024 x 1,024)])) = 236,500 bytes (approx. 230 KB)

The size of the log for search process

750 x 10,000 = 7,500,000 bytes (approx. 7 MB)

The size of the log for update process

620 x 10,000 = 6,200,000 bytes (approx. 6 MB)

The size of the log for the adding process with shundimport command

360 x 5 x [(1,000,000/3)/(1,024 x 1,024)] = 1,800 bytes (approx. 1 KB)