Graphite is not graphing anything for ranges bigger than 7 hours

Question

My current retention rule is like so:

[whatever]
priority = 110
pattern = ^stats\.whatever\..*
retentions = 60:10080,600:262974

If I understand correctly, this will save 2 days of 1 minute data and 5 years of ten minute data.

I have been sending data to graphite for the last couple of hours and I can see the a graph of this data but only for ranges less than 7 hours. If I try to visualize this data for a range of, for example, 1 day, the resulting graph doesn't show a single data point.

Is this caused by my retention rule?

thanks in advance.

Answer 1

I had this same problem. After you change your retention rules, you need to restart carbon-cache.py. If you want to keep the data you have you need to run whisper-resize.py on your whisper files (.wsp).

This link should help too: https://answers.launchpad.net/graphite/+question/140289

However in that link, the parameters passed to whisper-resize.py are in the wrong order. It should be whisper-resize.py <file> <retention rate>

Here's a helpful command for resizing: find /opt/graphite/storage/whisper -type f -name "*.wsp" -exec whisper-resize.py {} <retention rate> \;

Adjust it as needed.

Answer 2

I had a similar problem; for me it wasn't the retention rules, but the aggregation rules. By default, my counters were being assigned to --agggregationMethod average and -xFilesFactor 0.5. But my data was nowhere near that dense, so the aggregator was throwing away my data on the grounds that there wasn't a statistically significant sample available.

In my particular use case, I was interested in the peak value over some time period, so I used whisper-resize.py to reconfigure my database: --aggregationMethod max, --xFilesFactor 0.0 gave me the behavior I was expecting.

See also storage-aggregation.conf