[collectd-changes] collectd, the system statistics collection daemon: Changes to 'master'

[Florian Forster]

 src/utils_cache.c     |   78 ++++++++++++++++++++++++++++++++++++++++
 src/utils_cache.h     |    3 ++
 src/utils_threshold.c |   94 +++++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 169 insertions(+), 6 deletions(-)

New commits:
commit 43dbb24a3f311271da590ddf0c76f4d50681e388
Author: Andrés J. Díaz <ajdiaz at connectical.com>
Date:   Mon Aug 31 21:16:41 2009 +0200

    src/utils_threshold.c: Implement the “Hits” and “Hysteresis” config options.
    
    Hi all!
    
    Based on Mariusz's idea, i attach a patch for thresholds (no for
    filtering, yet) with basic hysteresis support adding the keyword
    Hysteresis to configuration file, for example:
    
    <Threshold>
      <Type "load">
         DataSource "midterm"
         WarningMax 1
         Hysteresis 0.3
      </Type "load">
    </Treshold>
    
    In this case the notification is raised when load (midterm datasource)
    is greater than 1, and came back to OKAY when lower than 0.7 (1 - 0.3).
    
    This is a proof of concept and I do not have a lot of time to test,
    please use this patch with caution. Furthermore, the code is really hard
    and dirty :)
    
    Best regards,
      Andres
    
    P.S.: The patch also including hits support, so to compile you also
    require to apply hits-cache.patch and, obviously this patch is
    incompatible with hits-threshold.patch.
    
    Signed-off-by: Florian Forster <octo at leeloo.lan.home.verplant.org>

commit 9bf72b2afd1e7151cf02def4a5512ebc8626a0cf
Author: Andrés J. Díaz <ajdiaz at connectical.com>
Date:   Mon Aug 31 18:06:15 2009 +0200

    src/utils_cache.c: Implement “uc_{get,set,inc}_hits”.
    
    Hi
    
    I've attached a patch to add hit counter to thresholds, that is, each
    time when threhsold raised, then an internal hit counter is incremented,
    when the value of the counter raise a specific value setted in
    configuration, then the notification is generated and counter is reset.
    Here are an example of threshold configuration with hit conter:
    
    <Threshold>
      <Plugin load>
        <Type load>
           WarninMax 1
           Hits 3
        </Type>
       </Plugin>
    </Threshold>
    
    In this example the notification will be generated when load value is
    greater than 1 for 3 intervals.
    
    Here are two patches, the first one adds hit feature to the collectd
    cached and the second one use hits in thresholds,
    
    Of course comments and suggestions are welcome :)
    
    Enjoy!
    
    Regards,
      Andres
    
    Signed-off-by: Florian Forster <octo at leeloo.lan.home.verplant.org>