X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Frrdcreate.pod;h=38585422c258f0baa3cd2d701b1a06748dda0073;hp=abb42fc977a6fab48dc34ec240e723bb7b16e5d0;hb=825f213df6f751b4e48fe7dcd64feeb27b10cc59;hpb=35354e059a77479a7a135c1e4fc71c76523fd7c4 diff --git a/doc/rrdcreate.pod b/doc/rrdcreate.pod index abb42fc..3858542 100644 --- a/doc/rrdcreate.pod +++ b/doc/rrdcreate.pod @@ -7,6 +7,8 @@ rrdcreate - Set up a new Round Robin Database B B I S<[B<--start>|B<-b> I]> S<[B<--step>|B<-s> I]> +S<[B<--no-overwrite>]> +S<[B<--daemon> I
]> S<[BIB<:>IB<:>I]> S<[BIB<:>I]> @@ -36,6 +38,17 @@ I documentation for other ways to specify time. Specifies the base interval in seconds with which data will be fed into the B. +=head2 B<--no-overwrite> + +Do not clobber an existing file of the same name. + +=item B<--daemon> I
+ +Address of the L daemon. For a list of accepted formats, see +the B<-l> option in the L manual. + + rrdtool create --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd I + =head2 BIB<:>IB<:>I A single B can accept input from several data sources (B), @@ -132,7 +145,7 @@ between two updates of this data source before the value of the data source is assumed to be I<*UNKNOWN*>. I and I define the expected range values for data supplied by a -data source. If I and/or I any value outside the defined range +data source. If I and/or I are specified any value outside the defined range will be regarded as I<*UNKNOWN*>. If you do not know or care about min and max, set them to U for unknown. Note that min and max always refer to the processed values of the DS. For a traffic-B type DS this would be @@ -408,7 +421,7 @@ an average rate for that PDP. If the total "unknown" time accounts for more than B the "step", the entire PDP is marked as "unknown". This means that a mixture of known and "unknown" sample times in a single PDP "step" may or may not add up to enough "known" -time to warrent for a known PDP. +time to warrant a known PDP. The "heartbeat" can be short (unusual) or long (typical) relative to the "step" interval between PDPs. A short "heartbeat" means you @@ -477,7 +490,7 @@ together with the time. =item Mail Messages Assume you have a method to count the number of messages transported by -your mailserver in a certain amount of time, giving you data like '5 +your mail server in a certain amount of time, giving you data like '5 messages in the last 65 seconds'. If you look at the count of 5 like an B data type you can simply update the RRD with the number 5 and the end time of your monitoring period. RRDtool will then record the number of