Kbase P3570: SonicMQ: java.lang.OutOfMemoryError on HP-UX
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/15/2008 |
|
Status: Verified
FACT(s) (Environment):
SonicMQ 4.0
SYMPTOM(s):
java.lang.OutOfMemoryError
HP-UX 11.0
CAUSE:
See <SonicMQ install dir>\sonicmq_docs\release.htm [ 1184 ] :
When running SonicMQ brokers on HP-UX machines, the default value for max_thread_proc (maximum threads per process) is insufficient. The general formula for SonicMQ is max_thread_proc = 64*B + 2*C = total threads required where B is the number of brokers started, and C is the maximum number of concurrent connections (Note that a SonicMQ explorer uses a connection.)
FIX:
Increase the max_thread_proc kernel parameter on HP-UX.
If you are using the default value you need to run the HP-UX sam utility to increase this value.
For example, if you run one broker that is supporting up to 300 connections, max_thread_proc = 64*1 + 2*200 = 464