How does the retention on Graphite storage schema work?
问题 I am trying to understand how the retentions in the storage-schema.conf of Graphite work. This is my retention configuration. [prod_retention] pattern = prod\..* retentions = 10s:30d,1m:90d Does this mean the data retention is for 120 days (30d+90d) or for just 90 days ? 回答1: That configuration means that a rolling window of 30d will have metrics at a 10s resolution and after data points exceed 30d of age, they are downsampled to a rolling window of 90d that will have metrics stored at a 1m