Question

Is it possibile to store time per point with millisecond precision?

Since Graphite is based on Whisper I’ve took a look at whisper.py file.
It contains:

UnitMultipliers = {
   's' : 1,
   'm' : 60,
   'h' : 60 * 60,
   'd' : 60 * 60 * 24,
   'y' : 60 * 60 * 24 * 365,
}

so it seems that it’s possibile to record events with a maximum precision of 1s.
How can I cope with a system that produces an event every 10ms?

Answer 1

You can send the data to the carbon-aggregator daemon or Statsd. These are both aggregators, so they’d aggregate the millisecond data and write it out in a per second value. For carbon-aggregator, you’d have to config the aggregator with how you want the data gathered: sum, avg, etc. For Statsd, the api call determines the aggregation used, so you don’t have to pre-configure it.