cups-error-references

[pipitas]

On 12/02/2010 01:34 PM, Simone wrote:

>   trying to debug a problem with my Canon LBP5100 that is not printing, I incresed the debug level to "debug" and started reading /var/cups/error.log but I really don't understand a lot of the terminology used by cups.
>
> theese are some of the messages I would like to understand :
>
> - cupsdAcceptClient: 12 from localhost (Domain)
> - cupsdAuthorize: No authentication data provided
> - cupsdMarkDirty(----J-)
> - cupsdMarkDirty(-----S)
> - cupsdSetBusyState: Dirty files
> - [Job 9] Auto-typing file...
> - [Job 9] Request file type is text/plain.
>
> Is there an Error-reference-page that explains error/warning?

You'll also see timestamps for each line in the error_log. And, watch 
this: a letter at the first column of each line, separated by a space 
from the timestamp. These letters (with lines) appear in the log 
depending on your "LogLevel" setting. Like this:

  I [02/Dec/2010:07:42:05 +0100] ...
  D [02/Dec/2010:07:42:05 +0100] ...
  N [02/Dec/2010:07:42:05 +0100] ...
  E [02/Dec/2010:07:42:05 +0100] ...
  d [02/Dec/2010:07:42:05 +0100] ...
  e [02/Dec/2010:07:42:05 +0100] ...
  C [02/Dec/2010:07:42:05 +0100] ...

You should only be concerned about the "E", "e" and "C" lines in your 
error_log.

  I appears for "info" level log messages.
  D appears for "debug" level log messages.
  N appears for "notice" level log messages.
  E appears for "error" level log messages.
  d appears for "debug2" level log messages.
  e appears for "emergency" level log messages.
  C appears for "critical" level log messages.

However, I have to admit that I also do not fully understand the exact 
meaning of each and every line in "debug2" level logs (lines starting 
with "d").