[rrd-users] RRDtool Pipe Transaction Delimiter
larryjadams at comcast.net
Mon Aug 10 19:03:44 CEST 2009
Say Tobi, long time...
Tobias Oetiker wrote:
> Hi Larry,
> Today Larry Adams wrote:
>> I am writing a function in PHP that opens a bi-directional process to
>> rrdtool using the syntax:
>> rrdtool -
>> As everyone is pretty much aware, this open a pipe that can receive
>> commands from standard in and echo back on standard out.
>> However, I wanted to confirm what character steam should be used to
>> confirm that an entire package has been received from the rrdtool pipe.
>> At the moment, I am using either of the following two substring matches:
>> Is this sufficient? Are there any other substring matches that tell me
>> that the command has completed?
> almost, but have a look at the graphv command since it can return
> an inline graph, there you have to just read the number of
> characters advised before the graph is being dumped ...
This is fine. Except that the process is only doing the two calls:
for a statistical reporting interface. It's what essentially amounts to
last average and last peak from the RRD for each DS.
>> Thanks in Advance,
>> Larry Adams
>> TheWitness @
>> rrd-users mailing list
>> rrd-users at lists.oetiker.ch
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