Additional settings for installing on AIX®
File descriptors
When running a multi-threaded
process such as the agent process, you might reach the soft limit
for file descriptors. This limit gives you the IBM® WebSphere® MQ reason code MQRC_UNEXPECTED_ERROR
(2195)
and, if there are enough file descriptors, an IBM WebSphere MQ
FFST file.
To avoid this problem, increase the process
limit for the number of file descriptors. You must alter the
nofiles
attribute in /etc/security/limits
to 10,000 for the mqm user ID, or in the default
stanza. To alter the number of file descriptors do these steps:- In a command prompt, check the maximum number of file descriptors
available to a process running as mqm:
lsuser -a nofiles mqm
- Set the value to at least
10240:
chuser nofiles=10240 mqm chuser nofiles_hard=10240 mqm
System Resource Limits
Set the system resource
limit for data segment and stack segment to unlimited using the following
commands in a command prompt:
ulimit -d unlimited
ulimit -s unlimited
For more information on configuring your system, see How to configure UNIX and Linux® systems for WebSphere MQ.