If you have not set up your application with the recommended minimum diagnostic configuration, do this as specified in the
Minimum Diagnostic Configuration Recommendations for Production Systems
The types of failures you might encounter when running your application on
Enterprise Server are varied. Once you are familiar with the types of failures that can occur, take a look at the tools for initial diagnosis
to help you decide the type of failure you have encountered.
Important:
Types of failures
Failures fall into the following categories:
- Incorrect output
- An application or system function produces the wrong results or exhibits unexpected behaviors. These include application
abends.
- Unexpected system terminations
- Either the whole enterprise server terminates or a subsystem (support process) terminates.
- System loops
- These include application loops and enterprise server subsystem loops. They are characterized by an abnormal accumulation
of CPU time by an enterprise server process and may display the same external symptoms as a system hang.
- System hangs
- Any problem where the enterprise server appears to stop responding to its clients (except for loops). This can also be the
result of problems with inter-system communications.
Key initial classifiers