documentation/7359: 2.0a9 does not support the option %D in LogFormats to log the time taken per request in microseconds.

[Vijay Shanker <ov...@usa.net>]

>Number:         7359
>Category:       documentation
>Synopsis:       2.0a9 does not support the option %D in LogFormats to log the time taken per request in microseconds.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Mar 05 10:10:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     ovijay@usa.net
>Release:        2.0a9
>Organization:
apache
>Environment:
SunOS subzero 5.6 Generic_105181-19 sun4u sparc SUNW,Ultra-5_10
>Description:
Following are the lines from my httpd.conf-
LogFormat "%h %l %u %t \"%r\" %>s %b %D" common
CustomLog /opt/ipac/apache_httpd/logs/access_log common

When I restart Apache I get the error message "Unrecognized LogFormat directive %D".

But the documentation says - 
%...D:          The time taken to serve the request, in microseconds.

My actual problem is to log the time taken by a request in micro seconds. 
I have gone thru the code and in the file mod_log_config.c, "D" is not considered to be a valid argument altogether.
>How-To-Repeat:
Include "%D" in the logformat as below -
LogFormat "%h %l %u %t \"%r\" %>s %b %D" common
CustomLog /opt/ipac/apache_httpd/logs/access_log common

and restart apache.
>Fix:
One more entry for 'D' can be added to the structure "log_item_list" with the corresponding function "log_request_duration_inms".

Add a function "log_request_duration_inms" returning just (do not divide with APR_USEC_PER_SEC)
-return apr_psprintf(r->pool, "%ld", (apr_now() - r->request_time)
                                           );
>Release-Note:
>Audit-Trail:
>Unformatted:
 [In order for any reply to be added to the PR database, you need]
 [to include <ap...@Apache.Org> in the Cc line and make sure the]
 [subject line starts with the report component and number, with ]
 [or without any 'Re:' prefixes (such as "general/1098:" or      ]
 ["Re: general/1098:").  If the subject doesn't match this       ]
 [pattern, your message will be misfiled and ignored.  The       ]
 ["apbugs" address is not added to the Cc line of messages from  ]
 [the database automatically because of the potential for mail   ]
 [loops.  If you do not include this Cc, your reply may be ig-   ]
 [nored unless you are responding to an explicit request from a  ]
 [developer.  Reply only with text; DO NOT SEND ATTACHMENTS!     ]