Very Computer

1. Hangs in 4gl Apps; truss points to semop()

Hi there, I have been experiencing regular hangs in our 4gl
applications. The session goes into wait mode. I tried starting the
application with a truss and the last call was made to semop(). Here's
the tail from truss output.

28182:  semop(4, 0xEFFFF5C8, 1)                         = 0
28182:  semop(3, 0x001949A4, 1)                         = 0
28182:  semop(4, 0xEFFFF5C8, 1)                         = 0
28182:  semop(3, 0x001949A4, 1)         (sleeping...)

The application seems to be waiting for a resourse or something. I
have a feeling that semaphores may be too low but want to confirm
before I put a request with my Sys Admin.

Semaphore setting on my host (solaris 2.6) are as follows:

set semsys:seminfo_semmap=64
set semsys:seminfo_semmni=600
set semsys:seminfo_semmns=600
set semsys:seminfo_semmnu=600
set semsys:seminfo_semume=64
set semsys:seminfo_semmsl=100

There is no error in IDS log.

Thanks,

Yasin

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