3.2.3 hwstraceinfo

Synopsis

hwstraceinfo -i shared-memory-identifier -l file-name

Storage location

Application Server installation directory\httpsd\sbin

Function

When an application program is executed and a request is received, the events that occur in the system are collected as internal trace. The internal trace is output once to the shared memory, and then it is output to the file as per the specification in the directive or command.

Collecting trace information

Internal traces are collected in the shared memory when various events occur in the Web server. The memory identifiers of shared memory are stored in the file specified in the HWSTraceIdFile directive.

How to output to a file

The internal trace that is collected in the shared memory is output to a file when the server process terminates abnormally or when the hwstraceinfo command is executed. When the server process terminates abnormally, the trace is output to the file specified in the HWSTraceLogFile directive.

Specify the memory identifier and file name of output destination, in the hwstraceinfo command.

The internal trace information output file size is as follows:

7KB x ThreadPerChild value

Execution permission

Administrator account or the standard user account. However, if you use a standard user account to execute this command, use the standard user account specified as the Web server service logon account in "Operation by general user accounts". You cannot use a user account with Administrators authority to execute this command.

Arguments

-i shared-memory-identifier

This parameter specifies the shared memory identifier that is output to the file specified in the HWSTraceIdFile directive.

-l file-name

This parameter specifies the file that outputs the trace corresponding to the shared memory identifier specified with -i.