Aliaksandr Valialkin
bd1cf053f6
app/vmselect/promql: add increases_over_time and decreases_over_time functions
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`increases_over_time(q[d])` returns the number of `q` increases during the given duration `d`.
`decreases_over_time(q[d])` returns the number of `q` decreases during the given duration `d`.
2019-09-25 20:38:51 +03:00
Aliaksandr Valialkin
828e5f6d26
app/vmselect/promql: binary operation fixes according to Prometheus behaviour
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The follosing issues were fixed:
- VictoriaMetrics could leave superflouos labels when using `on` or `ignoring` modifiers
- VictoriaMetrics could return `duplicate timeseries` error when using `group_left` or `group_right` with non-empty label list
2019-09-13 17:43:09 +03:00
Aliaksandr Valialkin
d0953e9f02
app/vmselect/promql: ignore grouping by destination label in count_values, since such a grouping is performed automatically
2019-09-04 19:59:02 +03:00
Aliaksandr Valialkin
b08f085082
app/vmselect/promql: reset timeseries name on group_left and group_right as Prometheus does
2019-09-03 20:43:29 +03:00
Aliaksandr Valialkin
e9db22a551
app/vmselect/promql: attempt to repair invalid bucket counts passed to histogram_quantile
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/154
2019-08-22 14:39:24 +03:00
Aliaksandr Valialkin
1101765adb
app/vmselect/promql: add label_value(q, label_name) func, which returns numeric value labels with name label_name in q
2019-08-20 00:28:44 +03:00
Aliaksandr Valialkin
c901a6472f
app/vmselect/promql: return NaN values if invalid bucket counts are passed to histogram_quantile
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136
2019-07-30 22:05:55 +03:00
Aliaksandr Valialkin
aac482517f
app/vmselect/promql: return NaN from count() over zero time series
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This aligns `count` behavior with Prometheus.
2019-07-25 22:02:34 +03:00
Aliaksandr Valialkin
73ae889244
app/vmselect/promql: extract rmoeveGroupTags function for removing unneeded tags from MetricName according to the given modifierExpr
2019-07-09 23:20:58 +03:00
Aliaksandr Valialkin
603b34edbd
app/vmselect/promql: properly preserve metric name after applying functions in any case from transformFuncsKeepMetricGroup
2019-07-09 23:10:49 +03:00
Aliaksandr Valialkin
bba07d05fe
app/vmselect/promql: remove empty timeseries left after topk call
2019-07-04 19:43:07 +03:00
Aliaksandr Valialkin
a3abed80ff
app/vmselect: do not return empty time series in /api/v1/query result
2019-07-01 17:16:26 +03:00
Aliaksandr Valialkin
72a3050c41
app/vmselect/promql: consistency renaming: candlestick -> rollup_candlestick
2019-06-29 03:13:25 +03:00
Aliaksandr Valialkin
96342f1422
app/vmselect: add candlestick(m[d]) func for returning open, close, low and high rollups on the given time range d
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This function is frequently used in financial apps. See https://en.wikipedia.org/wiki/Candlestick_chart
2019-06-27 18:46:54 +03:00
Aliaksandr Valialkin
14cd628948
app/vmselect/promql: add sum2 and sum2_over_time, geomean and geomean_over_time funcs.
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These functions may be useful for statistic calculations.
2019-06-24 16:45:00 +03:00
Aliaksandr Valialkin
f334908c22
app/vmselect/promql: ajdust data model to the model used in Prometheus
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Do not take into account data points on the range `[timestamp .. timestamp+step)`
when calculating value on the given `timestamp`.
Use only data points from the past when performing these calculations like Prometheus does.
This should reduce discrepancies between results returned by VictoriaMetrics
and results returned by Prometheus.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71
2019-06-21 21:55:25 +03:00
Aliaksandr Valialkin
837e349b7d
app/vmselect/promql: do not strip __name__ form time series after binary comparison operation
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Example:
foo > 10
Would leave `foo` name for all the matching time series on the left.
2019-06-21 13:08:02 +03:00
Aliaksandr Valialkin
8567e3463d
app/vmselect/promql: merge non-overlapping duplicate time series in group_left and group_right joins
2019-06-12 20:33:01 +03:00
Aliaksandr Valialkin
8e3eb5b39d
app/vmselect/promql: add alias(q, name) function that sets the given name to all the time series in q
2019-05-24 02:42:10 +03:00
Aliaksandr Valialkin
bb048937bc
app/vmselect/promql: add label_transform(q, label, regexp, replacement) function for replacing all the occurences of regexp with replacement in the given label for q
2019-05-23 16:26:07 +03:00
Aliaksandr Valialkin
24578b4bb1
all: open-sourcing cluster version
2019-05-23 00:25:38 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
