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Re: [monit] regex in http tests

From: Jan-Henrik Haukeland
Subject: Re: [monit] regex in http tests
Date: Tue, 18 May 2010 14:50:07 +0200

On May 18, 2010, at 1:38 PM, Edmunds wrote:

>      and content == '^OK$'
> works fine on PHP as Apache module, but doesn't work as expected if
> PHP runs as fast-cgi (on otherwise identical configurations). So it
> looks like the fcgid module is doing something monit is not expecting.

It is probably adding white-space chars such as new line. Regex are basically 
line oriented and new-line may cause problems. In any case instead of using 
OK[\r\n] I would recommend something like this to allow for optional 
white-space chars both in front and behind the OK but nothing else. Heck, this 
must work:

and content == '^[ \r\n\t]*OK[ \r\n\t]*$'

> On Tue, May 18, 2010 at 10:48 AM, Edmunds <address@hidden> wrote:
>> Unfortunately this doesn't work and it fails as soon as I add ^ and/or
>> $, it feels like monit doesn't recognize these as special characters,
>> or php+apache combo adds something to the beginning and end of output,
>> that is hidden by browsers (unlikely?)

Unless you have content-type set to text/plain that is not at all unlikely 
since text/html viewed in the browser hide white-space chars such as new-line.

>> I ended up with this test:
>>       and content == 'OK[\r\n]'
>> i.e. the output should contain a line ending in OK, which I guess will
>> have to do for now

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