Hi Jeremy,
Thank you for your help – that was a good explanation to me of what the man pages do not really show ;-)
Regards
Christian
Christian Becker
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Von: Jeremy Laidman [mailto:user-71895fb2e44c@xymon.invalid]
Gesendet: Mittwoch, 10. August 2016 05:47
An: Becker Christian <user-e4a19bfb94c0@xymon.invalid>; xymon at xymon.com
Betreff: Re: [Xymon] analysis.cfg - LOG - keyword matching
Christian
On Tue, Aug 9, 2016 at 5:53 PM Becker Christian <user-e4a19bfb94c0@xymon.invalid<mailto:user-e4a19bfb94c0@xymon.invalid>> wrote:
<snip>
I was thinking, that this directive
LOG %/var/(adm|log)/messages ERROR IGNORE=%(fd0|smbd|read_fd_with_timeout|Connection.reset.by.peer|error\.txt|gdm-simple-greeter|GdmDisplay|GdmSession|GDM|packagekitd|parport) COLOR=red
should msgs let go to red, since the message of the affected server contains the keyword “error”, even in lowercase. But the history of the msgs test for the affected server doesn’t show any red status.
I do not have the statement (?-i) in the analysis.cfg as documented in the Xymon man-pages:
Note that Xymon defaults to case-insensitive pattern matching; if that is not what you want, put "(?-i)" between the "%" and the regular expression to turn this off. E.g. "%(?-i)WARNING" will match the word WARNING only when it is upper-case.
Is my thinking wrong?
A little.
The man page mentions using "%(?-i)" in the context of matching regular expressions. For non-regular-expressions, this doesn't apply. The code that performs a non-RE match is:
return (strstr(datatosearch, pattern) != NULL);
"strstr()" is a case-sensitive string match, so "ERROR" will not match "error".
You can either have a second line with the lower-case string, or convert to regular expression, and take advantage of the case-insensitive match:
LOG %/var/(adm|log)/messages %ERROR IGNORE=%(fd0|smbd|read_fd_with_timeout|Connection.reset.by.peer|error\.txt|gdm-simple-greeter|GdmDisplay|GdmSession|GDM|packagekitd|parport) COLOR=red
Cheers
Jeremy