author | Marc Fournier <marc.fournier@camptocamp.com> | |
Tue, 24 Feb 2015 06:43:22 +0000 (07:43 +0100) | ||
committer | Marc Fournier <marc.fournier@camptocamp.com> | |
Tue, 24 Feb 2015 06:43:22 +0000 (07:43 +0100) |
Conflicts:
src/collectd.conf.pod
src/collectd.conf.pod
1 | 2 | |||
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src/collectd.conf.pod | patch | | diff1 | | diff2 | | blob | history |
src/ipmi.c | patch | | diff1 | | diff2 | | blob | history |
diff --cc src/collectd.conf.pod
index 7a4eb9383718d746d6c259ffcd2a2f3c6f6e1bec,16397e21d78e2d50024ee8f549e68d00d72dcdca..5f9538b7233e70771848103cef7c7b20b06bce16
+++ b/src/collectd.conf.pod
locally, or B<DataDir> is set to a relative path, this will not work as
expected. Default is B<true>.
+=item B<CreateFilesAsync> B<false>|B<true>
+
+When enabled, new RRD files are enabled asynchronously, using a separate thread
+that runs in the background. This prevents writes to block, which is a problem
+especially when many hundreds of files need to be created at once. However,
+since the purpose of creating the files asynchronously is I<not> to block until
+the file is available, values before the file is available will be discarded.
+When disabled (the default) files are created synchronously, blocking for a
+short while, while the file is being written.
+
+=item B<StepSize> I<Seconds>
+
+B<Force> the stepsize of newly created RRD-files. Ideally (and per default)
+this setting is unset and the stepsize is set to the interval in which the data
+is collected. Do not use this option unless you absolutely have to for some
+reason. Setting this option may cause problems with the C<snmp plugin>, the
+C<exec plugin> or when the daemon is set up to receive data from other hosts.
+
+=item B<HeartBeat> I<Seconds>
+
+B<Force> the heartbeat of newly created RRD-files. This setting should be unset
+in which case the heartbeat is set to twice the B<StepSize> which should equal
+the interval in which data is collected. Do not set this option unless you have
+a very good reason to do so.
+
+=item B<RRARows> I<NumRows>
+
+The C<rrdtool plugin> calculates the number of PDPs per CDP based on the
+B<StepSize>, this setting and a timespan. This plugin creates RRD-files with
+three times five RRAs, i. e. five RRAs with the CFs B<MIN>, B<AVERAGE>, and
+B<MAX>. The five RRAs are optimized for graphs covering one hour, one day, one
+week, one month, and one year.
+
+So for each timespan, it calculates how many PDPs need to be consolidated into
+one CDP by calculating:
+ number of PDPs = timespan / (stepsize * rrarows)
+
+Bottom line is, set this no smaller than the width of you graphs in pixels. The
+default is 1200.
+
+=item B<RRATimespan> I<Seconds>
+
+Adds an RRA-timespan, given in seconds. Use this option multiple times to have
+more then one RRA. If this option is never used, the built-in default of (3600,
+86400, 604800, 2678400, 31622400) is used.
+
+For more information on how RRA-sizes are calculated see B<RRARows> above.
+
+=item B<XFF> I<Factor>
+
+Set the "XFiles Factor". The default is 0.1. If unsure, don't set this option.
+I<Factor> must be in the range C<[0.0-1.0)>, i.e. between zero (inclusive) and
+one (exclusive).
+
+ =item B<CollectStatistics> B<false>|B<true>
+
+ When set to B<true>, various statistics about the I<rrdcached> daemon will be
+ collected, with "rrdcached" as the I<plugin name>. Defaults to B<false>.
+
+ Statistics are read via I<rrdcached>s socket using the STATS command.
+ See L<rrdcached(1)> for details.
+
=back
=head2 Plugin C<rrdtool>
diff --cc src/ipmi.c
Simple merge