AIX 5L Problem Determination - IBM Redbooks

From the output of this example, it appears that the aixterm process is hung up
waiting for some kernel resources, as the only events the process is performing
are lock and unlock operations. To go into deeper analysis of this problem, you
would need to look into the program source code of the application you are
tracing.
9.6 Managing mail logging
The sendmail command logs mail system activity through the syslogd daemon.
The syslogd daemon must be configured and running for logging to occur.
Specifically, the /etc/syslog.conf file should contain the uncommented line:
mail.debug /var/spool/mqueue/log
Refresh the syslogd daemon by typing the following at the command line:
# refresh -s syslogd
0513-095 The request for subsystem refresh was completed successfully.
If the /var/spool/mqueue/log file does not exist, you must create it by typing the
following command:
# touch /var/spool/mqueue/log
The types of activities that the sendmail command puts into the log file are
specified by the option in the /etc/mail/sendmail.cf file. (For versions earlier than
AIX 5L Version 5.1, this file is /etc/sendmail.cf.)
Because information is continually appended to the end of the log, the file can
become very large. Run the /usr/lib/smdemon.cleanu shell script to keep the file
from growing too large.
If you suspect a problem, you can set traffic logging by using the -X flag. For
example:
#/usr/sbin/sendmail -X /tmp/traffic -bd
This command logs all traffic in the /tmp/traffic file. This command logs a lot of
data and should not be used during normal operations.
The sendmail command tracks the volume of mail being handled by each of the
mailer programs that interface with it. These mailers are defined in the
/etc/mail/sendmail.cf file. To start the accumulation of mailer statistics, create the
/etc/mail/statistics file by typing the following:
# touch /etc/mail/statistics
Chapter 9. System access and printer problem determination 217