rddfetch the maximum of all max in a given timerange

[fred.tant]

rrdtool fetch server.rrd MAX --start 1113826500 --end 1113827100 -r 900

gives all MAX values of each timestamp in the range between start and stop:

timestamp xxxx
1113826500: 1.0979600000e+03
1113826800: 1.1059733333e+03
1113827100: 1.0980266667e+03

What we want is the MAX value of all maxvalues in a timerange.
Is this case : 1113826800: 1.1059733333e+03

Is this possibe in the rrdtool tool :)

[TheWitness]

This is a question for the RRDTool.org web site.

TheWitness

[bulek]

But since you asked here maybe this can help you:

Code: Select all

rrdtool fetch server.rrd MAX --start 1113826500 --end 1113827100 -r 900 | sort -g -k2 | tail -1

- Piotr