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From Rich Bowen <rbo...@rcbowen.com>
Subject Re: Documentation clarification: ErrorLogFormat
Date Mon, 19 Sep 2011 18:44:35 GMT

On Sep 19, 2011, at 2:17 PM, William A. Rowe Jr. wrote:

> On 9/17/2011 9:56 PM, Rich Bowen wrote:
>> In the documentation for the ErrorLogFormat directive, log format strings are given
as, for example, %...A
>> 
>> What does the ... signify?
> 
> Modifiers
> 
> Particular items can be restricted to print only for responses with specific HTTP status
> codes by placing a comma-separated list of status codes immediately following the "%".
For
> example, "%400,501{User-agent}i" logs User-agent on 400 errors and 501 errors only. For
> other status codes, the literal string "-" will be logged. The status code list may be
> preceded by a "!" to indicate negation: "%!200,304,302{Referer}i" logs Referer on all
> requests that do not return one of the three specified codes.
> 
> The modifiers "<" and ">" can be used for requests that have been internally redirected
to
> choose whether the original or final (respectively) request should be consulted. By
> default, the % directives %s, %U, %T, %D, and %r look at the original request while all
> others look at the final request. So for example, %>s can be used to record the final
> status of the request and %<u can be used to record the original authenticated user
on a
> request that is internally redirected to an unauthenticated resource.

That's LogFormat, not ErrorLogFormat. It's similar, but different, in ErrorLogFormat

In ErrorLogFormat, you can have '-', '+', or a number from 1 to 15.

--
Rich Bowen
rbowen@rcbowen.com
rbowen@apache.org







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