Roman Khavronenko
95ddfda894
app/vmselect: fix binary comparison func ( #1667 )
...
The fix makes the binary comparison func to check for NaNs
before executing the actual comparison. This prevents VM
to return values for non-existing samples for expressions
which contain bool comparisons. Please see added test
for example.
2021-09-30 13:04:10 +03:00
Aliaksandr Valialkin
1115c2f235
app/vmselect/promql: align the behavior of or, and and unless operators with on (labels) modifier to Prometheus
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Previously VictoriaMetrics could return unexpected result of the right-hand side operand
had multiple time series with the given set of labels mentioned in `on(labels)`.
See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1643
2021-09-24 00:56:35 +03:00
Aliaksandr Valialkin
b047feeb8b
app/vmselect/promql: properly handle (a op b) default N if (a op b) returns NaN series
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The result should be a series with `N` values and `a op b` labels. Previously such series has been removed from the result.
2021-07-16 01:44:24 +03:00
Aliaksandr Valialkin
b473c21915
app/vmselect/promql: do not merge time series during requests to /api/v1/query
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1141
2021-03-25 13:56:23 +02:00
Aliaksandr Valialkin
bd1d906eee
app/vmselect/promql: reduce the probability of duplicate time series errors when querying Kubernetes metrics
2021-02-18 22:08:13 +02:00
Aliaksandr Valialkin
4ef7158e89
app/vmselect/promql: return nan from a >bool b if a is nan in the same way as Prometheus does
2020-12-02 00:28:56 +02:00
Aliaksandr Valialkin
7e706eea13
app/vmselect/promql: refactor implementations for and and unless binary operations, so they are closer to or implementation
2020-07-09 13:06:01 +03:00
Aliaksandr Valialkin
70bf8218bb
app/vmselect/promql: properly override label values from group_left and group_right lists like Prometheus does
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/577
2020-06-21 16:32:27 +03:00
Aliaksandr Valialkin
6939e36fdd
app/vmselect/promql: fill gaps on right side with values from left side of or operator in the same way as Prometheus does
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/552
2020-06-18 23:05:23 +03:00
Aliaksandr Valialkin
9ed4951ec8
lib/metricsql: move it to a separate repository - github.com/VictoriaMetrics/metrics
2020-04-28 15:30:06 +03:00
Aliaksandr Valialkin
45bc6c62f2
app/vmselect/promql: adjust and and unless binary operator handling to be consistent with Prometheus
2020-01-31 18:52:51 +02:00
Aliaksandr Valialkin
453d71d082
Rename lib/promql to lib/metricsql and apply small fixes
2019-12-25 22:09:09 +02:00
Mike Poindexter
009d1559db
Split Extended PromQL parsing to a separate library
2019-12-25 22:09:07 +02:00
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
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
218cb4623a
app/vmselect/promql: hande comparisons with NaN similar to Prometheus
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/150
2019-08-18 00:25:58 +03:00
Aliaksandr Valialkin
092c9b39a8
app/vmselect/promql: remove empty time series after applying filters like q > 0
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This should reduce CPU and RAM usage for queries over high number of time series.
2019-07-12 19:59:49 +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
88005237f4
app/vmselect/promql: swap binary operation with modifier in the error message for improved readability
2019-06-12 17:14:33 +03:00
Aliaksandr Valialkin
a71381ad2a
app/vmselect/promql: list a sample of duplicate time series in the error message for group_left or group_right
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This should improve troubleshooting for complex queries involving `group_left` and `group_right` modifiers.
2019-06-12 16:57:34 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
