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app/vmselect/promql: remove -search.maxPointsPerTimeseries command-line flag

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Limit the estimated time series count after aggregation with grouping by the number of source time series.
This commit is contained in:
Aliaksandr Valialkin 2020-04-29 00:18:47 +03:00
parent 408ade27a9
commit 81b8811cf4
1 changed files with 5 additions and 1 deletions
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6
app/vmselect/promql/eval.go
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@ -686,6 +686,10 @@ func evalRollupFuncWithMetricExpr(ec *EvalConfig, name string, rf rollupFunc,
timeseriesLen *= 1000
}
}
// The maximum number of output time series is limited by rssLen.
if timeseriesLen > rssLen {
timeseriesLen = rssLen
}
}
rollupPoints := mulNoOverflow(pointsPerTimeseries, int64(timeseriesLen*len(rcs)))
rollupMemorySize := mulNoOverflow(rollupPoints, 16)
@ -695,7 +699,7 @@ func evalRollupFuncWithMetricExpr(ec *EvalConfig, name string, rf rollupFunc,
return nil, fmt.Errorf("not enough memory for processing %d data points across %d time series with %d points in each time series; "+
"possible solutions are: reducing the number of matching time series; switching to node with more RAM; "+
"increasing -memory.allowedPercent; increasing `step` query arg (%gs)",
rollupPoints, rssLen*len(rcs), pointsPerTimeseries, float64(ec.Step)/1e3)
rollupPoints, timeseriesLen*len(rcs), pointsPerTimeseries, float64(ec.Step)/1e3)
}
defer rml.Put(uint64(rollupMemorySize))