doc.FAQ.HeavyLoadCausesMyODBCConnectionsToFailWhatDoIDo

Use the following guidelines to troubleshoot heavy problems:

Patch databases and operating systems regularly.
Contact database and o/s vendors to see if patches are associated with problems.
Ensure Unix kernel tuning parameters match parameters specified by database and o/s documentation.
Ensure your machine has adequate memory and processor resources.
Comparison test Multi-Tier drivers when Single-Tier drivers appear to expose limitations in a database native client.
Re-link Multi-Tier database agents against databases, especially patched databases.
Ensure PortHigh is set in the [Protocol TCP] section of the Multi-Tier Session Rules Book. This is the oplrqb.ini file that resides in the /bin sub-directory of the server components installation.
Multi-Tier users perform the following test:
login to the machine that contains the OpenLink server components.
Run oplshut -s on the command-line.
Compare the output to the Windows Task Manager or Unix ps -ef.
Upgrade server components if oplshut shows fewer processes when compared to the Task Manager or ps.
Multi-Tier users experiment with database agent reuse. Users should do comparison test with the following values: