Kbase P56136: java.lang.OutOfMemoryError: max threads limit being reached in VM when attempting to Connect to Son
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
8/4/2004 |
|
Status: Unverified
FACT(s) (Environment):
HP-UX
SYMPTOM(s):
Users are no longer able to send requests to Sonic Adapter.
Sonic Adapter
Client receives error (5639)
User-defined function '<function>' invoked dynamically but could not be found. (5639)
User-defined function 'getCallID' invoked dynamically but could not be found.
(5639)
java.lang.Error: classForProType: Unknown type.
Sonic Adapter broker logfile shows:
java.lang.OutOfMemoryError: max threads limit being reached in VM
CAUSE:
A system limitation on how many threads a specific process can handle.
The Sonic Adapter broker in 9.x is a Java program, and runs within a Java Virtual Machine (JVM). The broker is multi-threaded for efficiency and scalablity. These threads are all initiated from the one JVM process.
To support these numbers of threads, the JVM that is required from Progress on HP-UX 11.0 requires a kernel setting for the maximum number of threads a process can start. By default, this value is too low to run a large number of Adapters on a single broker.
FIX:
Increase the max_thread_proc kernel parameter.
See a UNIX system administrator for further details. This is outlined in a technical document from HP. The kernel must be rebuilt and the system rebooted for the changes to take effect. .