HP-UX SNAplus2 Diagnostics Guide

Using Logging and Tracing

Controlling Logging Using Command-Line Administration Program

Chapter 368

sna.log, specify the following commands:

snapadmin set_log_file, log_file_type = ERROR, file_name = sna.log

snapadmin set_log_file, log_file_type = AUDIT, file_name = sna.log

Audit and error log ﬁles are ASCII text ﬁles. Use a standard HP-UX text

editor such as vi to view them.

Enabling Central Logging and Local Logging

In a client-server system, SNAplus2 sends all log messages to ﬁles on the

master server by default (central logging). However, you can log

messages for each server to ﬁles on that server (local logging).

If a server cannot locate the domain conﬁguration ﬁle when it starts up

(for example, because no master or backup server is active), it cannot

determine whether to log centrally or locally and which server is the

central logger. In this case, the server logs messages locally. When it

later establishes contact with the master server and determines that

central logging is in use, it sends any further messages to the central

logger and stops local logging.

You specify whether to log centrally or locally by using the

set_central_logging command. To check the name of the server that is

currently deﬁned as the central logger (to which all log messages are

sent) or to check whether central logging is currently enabled, use the

query_central_logger and query_central_logging administration

commands.

For more information about these administration commands, refer to the

HP-UX SNAplus2 Administration Command Reference.

Determining Which Messages Are Logged

Problem messages are always logged and cannot be disabled, but you can

specify whether to log exception and audit messages. The initial default

is to log exception messages but not audit messages. You can specify

global settings for logging exception and audit messages on all servers by

using the snapadmin set_global_log_type command. If necessary, you

can override these settings for a particular server by using the

snapadmin set_log_type command.

To determine what logging options are in effect issue the following:

• Use the snapadmin query_global_log_type to check which