Aliaksandr Valialkin
e6eee2bebf
app/vmselect/promql: add zscore-related functions: zscore_over_time(m[d]) and zscore(q) by (...)
2020-08-03 21:52:18 +03:00
Aliaksandr Valialkin
0da202023b
app/vmselect/promql: return empty values from group() if all the time series have no values at the given timestamp
...
This aligns `group()` behaviour to Prometheus
2020-07-28 13:40:11 +03:00
Aliaksandr Valialkin
ecb1b2564a
app/vmselect/promql: add mode() aggregate function
2020-07-20 15:31:20 +03:00
Aliaksandr Valialkin
6b5ad535ae
app/vmselect/promql: optimize group(rollup(m)) calculations
2020-07-17 16:47:16 +03:00
Aliaksandr Valialkin
aa5d88055d
app/vmselect/promql: add group() aggregate function to MetricsQL
...
This function has been added in Prometheus 2.20. See https://github.com/prometheus/prometheus/pull/7480
2020-07-17 15:17:55 +03:00
Aliaksandr Valialkin
df01836818
app/vmselect/promql: keep all labels for time series from any() call
2020-07-17 15:17:54 +03:00
Aliaksandr Valialkin
538fdfe133
app/vmselect/promql: move common code from aggrFuncOutliersK and newAggrFuncRangeTopK into getRangeTopKTimeseries
2020-05-19 16:11:14 +03:00
Aliaksandr Valialkin
f52769f6ee
app/vmselect/promql: fix outilersk calculations
2020-05-19 14:44:53 +03:00
Aliaksandr Valialkin
a441cdd1d9
app/vmselect/promql: add outliersk(N, m) aggregate function for anomaly detection across groups of similar time series
2020-05-19 13:52:36 +03:00
Aliaksandr Valialkin
cc311e20fe
app/vmselect/promql: add any(x) by (y) aggregate function, which returns any time series from q for each group y
2020-05-12 19:45:56 +03:00
Aliaksandr Valialkin
574289c3fb
app/vmselect/promql: support for sum(x) by (y) limit N syntax in order to limit the number of output time series after aggregation
2020-05-12 19:45:54 +03:00
Aliaksandr Valialkin
4e4f57b121
lib/metricsql: move it to a separate repository - github.com/VictoriaMetrics/metrics
2020-04-28 15:28:22 +03:00
Aliaksandr Valialkin
1925ee038d
Rename lib/promql to lib/metricsql and apply small fixes
2019-12-25 22:03:59 +02:00
Mike Poindexter
bec62e4e43
Split Extended PromQL parsing to a separate library
2019-12-25 22:03:51 +02:00
Aliaksandr Valialkin
cea5a14853
all: rename Extended PromQL to PromQL extensions
2019-12-12 19:25:58 +02:00
Aliaksandr Valialkin
c09472dfd9
app/vmselect/promql: add {topk|bottomk}_{min|max|avg|median} aggregate functions for returning the exact k time series on the given time range
...
The full list of functions added:
- `topk_min(k, q)` - returns top K time series with the max minimums on the given time range
- `topk_max(k, q)` - returns top K time series with the max maximums on the given time range
- `topk_avg(k, q)` - returns top K time series with the max averages on the given time range
- `topk_median(k, q)` - returns top K time series with the max medians on the given time range
- `bottomk_min(k, q)` - returns bottom K time series with the min minimums on the given time range
- `bottomk_max(k, q)` - returns bottom K time series with the min maximums on the given time range
- `bottomk_avg(k, q)` - returns bottom K time series with the min averages on the given time range
- `bottomk_median(k, q)` - returns bottom K time series with the min medians on the given time range
2019-12-05 19:26:47 +02:00
Aliaksandr Valialkin
0401969d78
app/vmselect/promql: re-use metrics.Histogram when calculating histogram function for each point on the graph
...
This should reduce the amounts memory allocations
2019-11-25 14:24:21 +02:00
Aliaksandr Valialkin
50ae1879c6
app/vmselect/promql: add histogram aggregate function, which is useful for building heatmaps from multiple time series
2019-11-24 00:04:25 +02:00
Aliaksandr Valialkin
6954e126fc
app/vmselect/promql: ignore grouping by destination label in count_values, since such a grouping is performed automatically
2019-09-04 19:58:01 +03:00
Aliaksandr Valialkin
17096b5750
app/vmselect/promql: return NaN from count() over zero time series
...
This aligns `count` behavior with Prometheus.
2019-07-25 22:02:30 +03:00
Aliaksandr Valialkin
9203170eb2
app/vmselect/promql: extract rmoeveGroupTags function for removing unneeded tags from MetricName according to the given modifierExpr
2019-07-09 23:20:48 +03:00
Aliaksandr Valialkin
4dbd642c86
app/vmselect/promql: remove empty timeseries left after topk call
2019-07-04 19:42:39 +03:00
Aliaksandr Valialkin
90e72c2a42
app/vmselect/promql: add sum2 and sum2_over_time, geomean and geomean_over_time funcs.
...
These functions may be useful for statistic calculations.
2019-06-24 16:44:44 +03:00
Aliaksandr Valialkin
1c33b5937e
app/vmselect/promql: prevent from count_values explosion of timeseries, which could result in OOM
2019-06-11 01:03:13 +03:00
Aliaksandr Valialkin
8bb6bc986d
app/vmselect/promql: skip superflouos timestamps copying in count_values
2019-06-11 00:44:01 +03:00
Aliaksandr Valialkin
bf9782eaf6
app/vmselect/promql: skip NaN values in count_values func
2019-06-10 22:42:32 +03:00
Aliaksandr Valialkin
1458450dba
app/vmselect/promql: return the correct time series from quantile
...
Previously arbitrary time series could be returned from `quantile`
depending on sort order for the last data point in the selected range.
Fix this by returning the calculated time series.
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/55
2019-06-06 17:07:31 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
