For Microsoft Windows Server systems that
have large numbers of simultaneously connected users or large numbers
of simultaneously running jobs, you can configure the IBM®
InfoSphere® Information Server engine
to support the number of open files, lock table entries, and locks
that are necessary for correct engine operation. To tune the engine,
modify settings in the uvconfig file.
Before you begin
- Back up the uvconfig file. By
default, this file is located in the following directory: C:\IBM\InformationServer\Server\DSEngine.
- Stop all IBM
InfoSphere
DataStage® jobs
and ask all users to log out of InfoSphere
DataStage.
About this task
For new installations of IBM
InfoSphere Information Server,
change the settings described in this task if you are configuring
production systems that have 80 or more simultaneously connected users
or 50 or more simultaneously running jobs.
For existing installations,
change these settings if you encounter resource problems while running InfoSphere
DataStage jobs.
Procedure
- Perform the following steps to verify that no InfoSphere
DataStage jobs
or osh.exe processes are running on the server
and that no connections are active:
- From the Microsoft Windows Task Manager, click
the Processes tab, and then click the Image
Name column to sort the process list by name.
- Verify that the Show processes from all users check
box is selected.
- In the list of processes, verify that the following
processes are not running: uvsh.exe and osh.exe.
If these processes are not running, there are no InfoSphere
DataStage jobs
running on the server.
- In the list of processes, verify that the following
processes are not running: dsapi_server.exe and dsapi_slave.exe.
If these processes are not running, there are no active InfoSphere
DataStage connections.
- Stop the InfoSphere Information Server engine.
- Use a text editor to edit the uvconfig file. By
default, this file is located in the following directory: C:\IBM\InformationServer\Server\DSEngine. Specify the following
settings
MFILES 200
T30FILES 300
RLTABSZ 300
MAXRLOCK 299
- Save the uvconfig file. Make sure
that you do not save the file with a .txt extension.
The uvconfig file cannot have a file extension.
- From the Windows command
prompt, change to the directory that contains the uvconfig file.
For example, change to the following directory:
C:\IBM\InformationServer\Server\DSEngine
- Issue the following command to regenerate the binary uvconfig file:
- Restart the InfoSphere Information Server engine.