X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=doc%2Frrdupdate.pod;h=2d4ee8c7dd4d94dfe7336f205dce1f00cacc5091;hb=f9e5bd6a9d41c4607291cbbd88280129184ab325;hp=394c49cb2e283bc072a1773858e6896f9789fc96;hpb=bf7d0302ab2ff46038f7002a9eab76f4105c3cee;p=rrdtool.git diff --git a/doc/rrdupdate.pod b/doc/rrdupdate.pod index 394c49c..2d4ee8c 100644 --- a/doc/rrdupdate.pod +++ b/doc/rrdupdate.pod @@ -1,6 +1,6 @@ =head1 NAME -rrdtool update - Store a new set of values into the rrd +rrdtool update - Store a new set of values into the RRD =for html
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@@ -27,9 +27,9 @@ performs the same function. The I stands for I, which describes the output returned. B returns a list of any and all consolidated data points (CDPs) written to disk as a result of the invocation of update. The values are indexed by timestamp (time_t), -RRA (index number), and data source (name). Note that depending -on the arguments of the current and previous call to update, the -list may have no entries or a large number of entries. +RRA (consolidation function and PDPs per CDP), and data source (name). +Note that depending on the arguments of the current and previous call to +update, the list may have no entries or a large number of entries. =item I @@ -45,7 +45,7 @@ error resistant, as you might be sending the wrong data into a RRD. The template switch allows you to specify which data sources you are going to update and in which order. If the data sources specified in -the template are not available in the rrd file, the update process +the template are not available in the RRD file, the update process will abort with an error message. While it appears possible with the template switch to update data sources @@ -53,7 +53,7 @@ asynchronously, B implicitly assigns non-COMPUTE data sources missing from the template the I<*UNKNOWN*> value. Do not specify a value for a COMPUTE B in the B function. If -this is done accidently (and this can only be done using the template switch), +this is done accidentally (and this can only be done using the template switch), B will ignore the value specified for the COMPUTE B. =item B|IB<:>I[B<:>I...] @@ -70,9 +70,9 @@ important when you are working with data-sources of type B, B or B. The remaining elements of the argument are DS updates. The order of this list is -the same as the order the data sources were defined in the rra. +the same as the order the data sources were defined in the RRA. If there is no data for a certain data-source, the letter -B (eg. N:0.1:U:1) can be defined. +B (e.g., N:0.1:U:1) can be defined. The format of the value acquired from the data source is dependent of the data source type chosen. Normally it will be numeric, but the data acquisition @@ -88,7 +88,7 @@ C Update the database file demo1.rrd with 3 known and one I<*UNKNOWN*> value. Use the current time as the update time. -C +C Update the database file demo2.rrd which expects data from a single data-source, three times. First with an I<*UNKNOWN*> value then with two