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List:       nagios-users
Subject:    [Nagios-users] Modifying normal_check_interval breaks nagiosgrapher
From:       Matthew Angelo <bangers () gmail ! com>
Date:       2010-06-30 5:21:54
Message-ID: AANLkTik-nX2HhUWxIhHWvJyTMshecggiRARYfBuRSXYL () mail ! gmail ! com
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Hi,

While testing and deploying Nagios I used the following service definition:

max_check_attempts             1
normal_check_interval          1
retry_check_interval           1


Everything was configured and tested including nagiosgrapher (rrdtool).  It
passed proof and concept and we have now moved it into production.   We
tested this against a small set of 200 servers.

Then we went to our "production" values of:

max_check_attempts             3
normal_check_interval          5
retry_check_interval           1



Data collection still works, but when we try to view a graph it's basically
empty data (nothing drawn) for the period in which the new
normal_check_internal was changed.  If we change it back to 1 from 5, it
starts to display data correctly again.


How do I *keep* the new normal_check_internal value, but make it work
again?  Googling led me to this:

http://forum.centreon.com/archive/index.php/t-4506.html

which essentially says nagios.cfg:normal_check_interval and nrpe.cfg:step
are tied together and if you change normal_check_internal you need need to
lose all your data.  The existing data isn't super critical.  We're happy to
lose it.  I tried removing ./var/rrd directory (well rename) but then all
the graphs broke with 'no such device' error.   What other directories do I
need to delete to clear all nagiosgrapher/rrdtool data?

Cheers

[Attachment #5 (text/html)]

Hi,<br><br>While testing and deploying Nagios I used the following service \
definition:<br><br>max_check_attempts             1<br>normal_check_interval          \
1<br>retry_check_interval           1  <br><br><br>Everything was configured and \
tested including nagiosgrapher (rrdtool).  It passed proof and concept and we have \
now moved it into production.   We tested this against a small set of 200 \
servers.<br> <br>Then we went to our &quot;production&quot; values \
of:<br><br>max_check_attempts             3<br>normal_check_interval          \
5<br>retry_check_interval           1  <br><br><br><br>Data collection still works, \
but when we try to view a graph it&#39;s basically empty data (nothing drawn) for the \
period in which the new normal_check_internal was changed.  If we change it back to 1 \
from 5, it starts to display data correctly again.<br> <br><br>How do I *keep* the \
new normal_check_internal value, but make it work again?  Googling led me to \
this:<br><br><a href="http://forum.centreon.com/archive/index.php/t-4506.html">http://forum.centreon.com/archive/index.php/t-4506.html</a><br>
 <br>which essentially says nagios.cfg:normal_check_interval and nrpe.cfg:step are \
tied together and if you change normal_check_internal you need need to lose all your \
data.  The existing data isn&#39;t super critical.  We&#39;re happy to lose it.  I \
tried removing ./var/rrd directory (well rename) but then all the graphs broke with \
&#39;no such device&#39; error.   What other directories do I need to delete to clear \
all nagiosgrapher/rrdtool data?<br> <br>Cheers    <br>



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