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app/vmselect/promql: allow adjusting window for default rollup function

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Default rollup function is `last_over_time`. It must support adjusting
the provided window in order to prevent from gaps on the graph
for window values smaller than scrape interval.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/134
This commit is contained in:
Aliaksandr Valialkin 2019-07-31 00:42:07 +03:00
parent 10f5a26bec
commit 4aaa5c2efc
1 changed files with 7 additions and 4 deletions
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11
app/vmselect/promql/rollup.go
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@ -54,10 +54,13 @@ var rollupFuncs = map[string]newRollupFunc{
} }
var rollupFuncsMayAdjustWindow = map[string]bool{ var rollupFuncsMayAdjustWindow = map[string]bool{
"deriv": true, "default_rollup": true,
"deriv_fast": true, "first_over_time": true,
"irate": true, "last_over_time": true,
"rate": true, "deriv": true,
"deriv_fast": true,
"irate": true,
"rate": true,
} }
var rollupFuncsRemoveCounterResets = map[string]bool{ var rollupFuncsRemoveCounterResets = map[string]bool{