Aliaksandr Valialkin
db1e62495b
app/vmselect/promql: add bitmap_and(), bitmap_or() and bitmap_xor() functions to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1541
2021-08-17 13:21:21 +03:00
Aliaksandr Valialkin
e92fde7945
app/vmselect/promql: add present_over_time(m[d])
function, which will be available starting from Prometheus 2.29.0
...
See https://github.com/prometheus/prometheus/releases/tag/v2.29.0-rc.0 and https://github.com/prometheus/prometheus/pull/9097
2021-08-03 16:11:49 +03:00
Aliaksandr Valialkin
05672ffc32
app/vmselect/promql: properly handle (a op b) default N
if (a op b)
returns NaN series
...
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 01:44:58 +03:00
Aliaksandr Valialkin
a925d5a3e1
app/vmselect/promql: duration handling improvements in MetricsQL queries
...
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
2021-07-12 17:16:41 +03:00
Aliaksandr Valialkin
0842bb9294
app/vmselect/promql: add timezone_offset(tz)
function
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1306
2021-05-20 11:53:09 +03:00
Aliaksandr Valialkin
544821b719
app/vmselect/promql: fix tests after d3fa0ccabd
2021-04-08 00:18:01 +03:00
Aliaksandr Valialkin
7a0b964e8d
app/vmselect/promql: do not delete dst_label
if src_label
is empty in label_copy(q, src_label, dst_label)
and label_move(q, src_label, dst_label)
2021-04-03 22:05:06 +03:00
Aliaksandr Valialkin
3055ab0115
app/vmselect/promql: add ability to set label value additionally to label name for the remaining sum of time series returned from topk_*
and bottomk_*
functions in the form: topk_min(N, m, "label=value")
2021-04-02 23:55:54 +03:00
Aliaksandr Valialkin
f0a4157f89
app/vmselect/promql: do not crash if histogram_over_time()
function name contains uppercase letters such as Histogram_over_time()
2021-03-16 12:24:21 +02:00
Aliaksandr Valialkin
82aab87446
app/vmselect/promql: fix tests after 2dae0a2c47
2021-03-15 20:18:59 +02:00
Nikolay
433fff0006
duplicate timeseries fix for prometheus_buckets function ( #1119 )
...
* try fix for prometheus_buckets
* merge possible end of the bucket collision
2021-03-09 12:26:23 +02:00
Aliaksandr Valialkin
a14053ffa0
app/vmselect/promql: add histogram_avg()
, histogram_stddev()
and histogram_stdvar()
functions to MetricsQL
2021-03-04 14:12:07 +02:00
Aliaksandr Valialkin
d86e9b49c4
app/vmselect/promql: increase accuracy for buckets_limit()
function for small limits by skipping the first and the last buckets during merge
...
The first and the last buckets are usually `[0 ... leMin]` and `(leMax ... +Inf)`. If they are merged with adjancent buckets,
then the resulting accuracy can suffer.
2021-02-26 22:56:36 +02:00
Aliaksandr Valialkin
98854e5f2b
app/vmselect: add sign(q)
and clamp(q, min, max)
functions, which will be added in the upcoming Prometheus release
...
See https://twitter.com/roidelapluie/status/1363428376162295811
The `last_over_time(m[d])` function already exists in MetricsQL.
2021-02-24 17:24:56 +02:00
Aliaksandr Valialkin
f4135b0d14
app/vmselect/promql: properly calculate histogram_quantile() over zero buckets and only a single non-zero
le="+Inf"` bucket like Prometheus does
2021-02-24 00:42:22 +02:00
Aliaksandr Valialkin
fa03e0d210
app/vmselect/promql: add increase_pure()
function to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
2021-02-22 19:14:15 +02:00
Aliaksandr Valialkin
4e39bf148c
vendor: update github.com/VictoriaMetrics/metrics from v1.13.1 to v1.14.0
...
The new version switches from log-linear histograms to log-based histograms,
which provide up to 3.6 times better accuracy.
2021-02-15 15:12:29 +02:00
Aliaksandr Valialkin
1051d8aa2d
app/vmselect/promql: add ability to pass multiple labels to sort_by_label
and sort_by_label_desc
functions
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992
2021-01-13 12:44:51 +02:00
Aliaksandr Valialkin
88ac4dfc07
app/vmselect: properly parse negative combined offsets such as -1h2m3s
...
Previously such offsets were parsed as `-1h + 2m + 3s`. Now they are parsed as `-(1h + 2m + 3s)`.
2020-12-19 01:23:46 +02:00
Aliaksandr Valialkin
e2e8ef86d9
app/vmselect/promql: add count_eq_over_time(m[d], N)
and count_ne_over_time(m[d], N)
for calculating the number of samples in m
over d
that are equal / not equal to N
2020-12-05 12:30:46 +02:00
Aliaksandr Valialkin
66379cc69f
app/vmselect/promql: add label_uppercase(q, label1, ... labelN)
and label_lowercase(q, label1, ... labelN)
functions
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/936
2020-12-03 21:47:36 +02:00
Aliaksandr Valialkin
44a34a0f5f
app/vmselect/promql: make fmt
2020-12-02 21:33:35 +02:00
Aliaksandr Valialkin
1982505c2b
app/vmselect/promql: return nan
from minute(m)
when m
equals to nan
...
This aligns VictoriaMetrics behaviour with Prometheus behaviour.
The issue has been spotted in https://promlabs.com/promql-compliance-test-results/2020-12-01/victoriametrics/
2020-12-02 20:16:58 +02:00
Aliaksandr Valialkin
700bda8e2e
app/vmselect/promql: return nan
from a >bool b
if a
is nan
in the same way as Prometheus does
2020-12-02 00:28:26 +02:00
Aliaksandr Valialkin
348edd92fe
app/vmselect: add -search.treatDotsAsIsInRegexps
command-line flag for automatic escaping of dots in regexp label filters
2020-11-11 12:39:07 +02:00
Aliaksandr Valialkin
c539494b36
app/vmselect/promql: allow passing optional third argument to topk_*
and bottomk_*
functions in order to obtain sum of time series outside top/bottom K
2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin
a2b9476897
app/vmselect/promql: return a single time series at max from absent()
function like Prometheus does
2020-10-13 15:56:04 +03:00
Aliaksandr Valialkin
9aa3b65766
app/vmselect/promql: improve time series staleness detection
...
This should prevent from double counting for time series at the time when it changes label.
The most common case is in K8S, which changes pod uid label with each new deployment.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
2020-10-13 12:19:57 +03:00
Aliaksandr Valialkin
a94825b169
Revert "app/vmselect/promql: remove metric name after applying clamp_min
and clamp_max
functions in order to be consistent with Prometheus"
...
This reverts commit bb61a4769b
.
Reason for revert: the previous behavior for VictoriaMetrics is easier to understand and use by users -
functions, which don't change the meaning of the time series shouldn't drop metric name.
Now the following functions do not drop metric name:
* clamp_min
* clamp_max
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674
2020-10-12 11:38:27 +03:00
Aliaksandr Valialkin
f7d28bddbf
Revert "app/vmselect/promql: remove metric name from results of certain rollup functions in order to be consistent with Prometheus"
...
This reverts commit e5202a4eae
.
Reason for revert: the previous behavior for VictoriaMetrics is easier to understand and use by users -
functions, which don't change the meaning of the time series shouldn't drop metric name.
Now the following functions do not drop metric name:
* max_over_time
* min_over_time
* avg_over_time
* quantile_over_time
* geomean_over_time
* mode_over_time
* holt_winters
* predict_linear
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674
2020-10-12 11:35:18 +03:00
Aliaksandr Valialkin
0e533d1a9c
app/vmselect/promql: support composite durations like Prometheus 2.21 does
...
The following durations are supported now: `1h5m35s` or `1s543ms`
See https://github.com/prometheus/prometheus/releases/tag/v2.21.0
and https://github.com/prometheus/prometheus/pull/7713
2020-09-11 23:39:13 +03:00
Aliaksandr Valialkin
f0005c3007
app/vmselect: move Deadline from netstorage to searchutils
...
This removes dependency on netstorage from searchutils.
2020-09-11 13:27:13 +03:00
Aliaksandr Valialkin
8e85b56737
app/vmselect/promql: adjust integrate()
calculations to be more similar to calculations from InfluxDB
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/701
2020-09-08 14:23:39 +03:00
Aliaksandr Valialkin
c0343a661b
app/vmselect/promql: increase floating point calculations accuracy by dividing by 1e3
instead of multiplying by 1e-3
2020-09-08 14:00:47 +03:00
Aliaksandr Valialkin
f4e7e5fb90
app/vmselect/promql: add count_le_over_time(m[d], le)
and count_gt_over_time(m[d], gt)
functions
...
These functions returns the number of raw samples that don't exceed `le` or are bigger than `gt`.
These functions are complement to already existing `share_le_over_time(m[d], le)` and `share_gt_over_time(m[d], gt)`.
2020-09-03 15:29:10 +03:00
Aliaksandr Valialkin
e706e59d49
app/vmselect: unconditionally align time range boundaries to step for subqueries as Prometheus does
2020-09-03 13:29:50 +03:00
Aliaksandr Valialkin
7d89fafe1a
app/vmselect/promql: allow passing multiple args to aggregate functions such as avg(q1, q2, q3)
2020-08-15 01:15:09 +03:00
Aliaksandr Valialkin
716754fae6
app/vmselect/promql: properly handle -n^m
like Prometheus does
...
`-n^m` must be handled as `-(n^m)` instead of `(-n)^m`.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/675
2020-08-07 07:42:18 +03:00
Aliaksandr Valialkin
bb61a4769b
app/vmselect/promql: remove metric name after applying clamp_min
and clamp_max
functions in order to be consistent with Prometheus
...
This improves VictoriaMetrics score at https://promlabs.com/promql-compliance-test-results-victoriametrics/
2020-08-06 23:42:37 +03:00
Aliaksandr Valialkin
e5202a4eae
app/vmselect/promql: remove metric name from results of certain rollup functions in order to be consistent with Prometheus
...
Rollup functions:
- avg_over_time
- min_over_time
- max_over_time
- quantile_over_time
This improves VictoriaMetrics results at https://promlabs.com/promql-compliance-test-results-victoriametrics/
2020-08-06 23:29:13 +03:00
Aliaksandr Valialkin
68e4f40a72
app/vmselect: properly handle PromQL queries like scalar1 < metric < scalar2
like Prometheus does
...
This fixes some cases from https://promlabs.com/promql-compliance-test-results-victoriametrics/
2020-08-06 23:21:03 +03:00
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
894dcb7c1c
app/vmselect/promql: improve further the accuracy of buckets_limit() function
...
The accuracy is increased by mergin the smallest bucket with the smallest adjacent bucket.
2020-07-26 12:10:13 +03:00
Aliaksandr Valialkin
994fa2f3bf
app/vmselect/promql: add buckets_limit(k, buckets)
function, which limits the number of buckets per time series to k
...
This function works with both Prometheus-style and VictoriaMetrics-style buckets.
The function removes buckets with the lowest values in order to reserve the highest precision.
The function is useful for building heatmaps in Grafana from too big number of buckets.
2020-07-24 16:13:53 +03:00
Aliaksandr Valialkin
3e557c9861
app/vmselect/promql: add rate_over_sum(m[d])
function to MetricsQL, which returns rate over sum of m
values over d
duration
...
Something like `sum_over_time(m[d]) / d`, but more accurate.
2020-07-24 01:17:42 +03:00
Aliaksandr Valialkin
caa2952aa6
app/vmselect: take into account the time spent in wait queue before query execution as time spent on the query
2020-07-21 19:00:09 +03:00
Aliaksandr Valialkin
ecb1b2564a
app/vmselect/promql: add mode()
aggregate function
2020-07-20 15:31:20 +03:00
Aliaksandr Valialkin
1c641037e8
app/vmselect/promql: add mode_over_time(m[d])
function
...
See https://en.wikipedia.org/wiki/Mode_(statistics) and https://stackoverflow.com/questions/61134078/promql-query-to-return-the-value-from-a-range-vector-which-occurs-maximum-no-of
2020-07-17 18:28:45 +03:00
Aliaksandr Valialkin
8949d65ad1
app/vmselect/promql: check that any()
doesn't touch metric name
2020-07-17 16:23:21 +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
9c350bc20d
app/vmselect/promql: add missing tests for ifnot
binary operation
2020-07-09 13:24:06 +03:00
Aliaksandr Valialkin
5d3db3ff7c
app/vmselect: add interpolate
function for filling gaps with linearly interpolated values
...
See https://stackoverflow.com/q/62565021/274937 for details
2020-07-02 14:54:21 +03:00
nicbaz
774f7ca1c1
vmselect: fix label_replace when mismatch ( #579 )
...
As per documentation on `label_replace` function: "If the regular
expression doesn't match then the timeseries is returned unchanged".
Currently this behavior is not enforced, if a regexp on an existing
tag doesn't match then the tag value is copied as-is in the destination
tag. This fix first checks that the regular expression matches the
source tag before applying anything.
Given the current implementation, this fix also changes the behavior
of the **MetricsQL** `label_transform` function which does not
document this behavior at the moment.
2020-06-23 23:50:33 +03:00
Aliaksandr Valialkin
7532dbcdf5
app/vmselect/promql: properly override label values from group_left
and group_right
lists like Prometheus does
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/577
2020-06-21 16:33:01 +03:00
Aliaksandr Valialkin
88e1b7d144
app/vmselect/promql: fill gaps on right side with values from left side of or
operator in the same way as Prometheus does
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/552
2020-06-18 23:05:16 +03:00
Aliaksandr Valialkin
70ea4e28a7
app/vmselect/promql: update numbers after the upgrade of github.com/VictoriaMetrics/metrics from v1.11.2 to v1.11.3
2020-05-20 03:06:23 +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
6f7f64f757
app/vmselect: handle timestamp(metric offset X)
the same way as Prometheus does
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/415
2020-04-15 12:01:00 +03:00
Aliaksandr Valialkin
3c7c71a49c
app/vmselect: adjust label_map()
handling for corner cases
...
The following corner cases now supported:
* label_map(q, "label", "", "foo") - adds `label="foo"` to series with missing `label`
* label_map(q, "label", "foo", "") - removes `label="foo"` from series
All the unmatched labels are kept unchanged.
2020-03-13 18:45:03 +02:00
Aliaksandr Valialkin
fdc2a9d1d7
app/vmselect: add label_map(q, label, srcValue1, dstValue1, ... srcValueN, dstValueN)
function to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/369
2020-03-12 19:13:47 +02:00
Aliaksandr Valialkin
ae51300973
app/vmselect/promql: properly take into account the first datapoint when calculating rollup_candlestick
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
2020-02-24 13:24:30 +02:00
Aliaksandr Valialkin
e65ec88779
app/vmselect/promql: do not take into account values outside the current window in rollup_candlestick
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
2020-02-23 18:03:57 +02:00
Aliaksandr Valialkin
7b1c7051a3
app/vmselect: add sort_by_label(q, label)
and sort_by_label_desc(q, label)
functions
...
This is implementation of https://github.com/prometheus/prometheus/pull/1533 for VictoriaMetrics.
2020-02-13 17:01:37 +02:00
Aliaksandr Valialkin
a6c6a2debc
app/vmselect/promql: do not add step to range end, since this hack became obsolete since commit 9e1119dab8
2020-02-05 21:22:19 +02:00
Aliaksandr Valialkin
ada6a3da8d
app/vmselect/promql: adjust rollup_candlestick calculations to the exepcted results
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
2020-02-04 22:42:13 +02:00
Aliaksandr Valialkin
90cf356ea1
app/vmselect/promql: adjust and
and unless
binary operator handling to be consistent with Prometheus
2020-01-31 18:52:38 +02:00
Aliaksandr Valialkin
a462355b2f
app/vmselect/promql: add keep_next_value(q)
for filling gaps with the next non-empty value
2020-01-29 00:48:04 +02:00
Aliaksandr Valialkin
2392a359e1
app/vmselect/promql: fix panic on a single zero vmrange bucket in prometheus_buckets() function
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/296
2020-01-27 18:04:55 +02:00
Aliaksandr Valialkin
efc7ad88ec
app/vmselect: mention command-line flag, which could be used for adjusting query timeouts, in timeout errors
2020-01-22 15:50:48 +02:00
Aliaksandr Valialkin
582dd01f42
app/vmselect/promql: add range_over_time(m[d])
function for calculating value range for m
over d
2020-01-21 19:05:17 +02:00
Aliaksandr Valialkin
36973ee975
app/vmselect/promql: add label_match(q, label, regexp)
and label_mismatch(q, label, regexp)
functions for filtering out time series with labels matching the given regexp
2020-01-21 15:00:20 +02:00
Aliaksandr Valialkin
2839f4688a
app/vmselect/promql: fix panic on sum(aggr_over_time(...))
with incorrect number of args
2020-01-15 16:26:09 +02:00
Aliaksandr Valialkin
8b14572f70
app/vmselect/promql: add hoeffding_bound_upper(phi, m[d])
and hoeffding_bound_lower(phi, m[d])
functions
...
These functions can be used for calculating Hoeffding bounds
for `m` over `d` time range and for the given `phi` in the range `[0..1]`.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/283
2020-01-11 14:46:23 +02:00
Aliaksandr Valialkin
46bfdbe6cf
app/vmselect/promql: do not take into account the previous point before time window in square brackets for min_over_time
, max_over_time
, rollup_first
and rollup_last
functions
...
This makes the behaviour for these functions similar to Prometheus when processing broken time series with irregular data points
like `gitlab_runner_jobs`. See https://gitlab.com/gitlab-org/gitlab-exporter/issues/50 for details.
2020-01-11 00:26:26 +02:00
Aliaksandr Valialkin
b829fe5e39
app/vmselect/promql: properly handle aggr(aggr_over_time(...))
2020-01-10 21:57:18 +02:00
Aliaksandr Valialkin
164278151f
app/vmselect/promql: add aggr_over_time(("aggr_func1", "aggr_func2", ...), m[d])
function
...
This function can be used for simultaneous calculating of multiple `aggr_func*` functions
that accept range vector. For example, `aggr_over_time(("min_over_time", "max_over_time"), m[d])`
would calculate `min_over_time` and `max_over_time` for `m[d]`.
2020-01-10 21:18:06 +02:00
Aliaksandr Valialkin
d410c78c7e
app/vmselect/promql: fix calculations for histogram_share
2020-01-04 14:44:48 +02:00
Aliaksandr Valialkin
d64699bb9f
app/vmselect/promql: add missing MetricName into netstorage.Result in tests
2020-01-04 12:52:39 +02:00
Aliaksandr Valialkin
f409f2d050
app/vmselect/promql: add histogram_share(le, buckets)
function
2020-01-04 12:45:55 +02:00
Aliaksandr Valialkin
b1ded7cf9a
app/vmselect/promql: add absent_over_time(m[d])
func similar to the function in Prometheus 2.16
...
See https://github.com/prometheus/prometheus/issues/2882
2020-01-04 12:45:07 +02:00
Aliaksandr Valialkin
a8360d04c0
app/vmselect/promql: add histogram_over_time(m[d])
rollup function
2020-01-04 12:44:56 +02:00
Aliaksandr Valialkin
cb3a342882
app/vmselect/promql: add share_le_over_time
and share_gt_over_time
functions for SLI and SLO calculations
2020-01-03 00:41:16 +02:00
Aliaksandr Valialkin
6f67e0b56b
lib/metricsq: add ExpandWithExprs
2019-12-25 22:20:30 +02:00
Aliaksandr Valialkin
73b2a3d4b7
app/vmselect/promql: return lower
and upper
bounds for the estimated percentile from histogram_quantile
if third arg is passed
...
Updates https://github.com/prometheus/prometheus/issues/5706
2019-12-11 13:57:26 +02:00
Aliaksandr Valialkin
3c076544bf
app/vmselect/promql: allow negative offsets
...
Updates https://github.com/prometheus/prometheus/issues/6282
2019-12-11 01:00:23 +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
e91cb34c0e
app/vmselect/promql: allow nested parens
2019-11-25 16:13:41 +02:00
Aliaksandr Valialkin
826dfd63a5
vendor: update github.com/VictoriaMetrics/metrics from v1.9.0 to v1.9.1
2019-11-25 15:23:01 +02:00
Aliaksandr Valialkin
c28876172f
app/vmselect/promql: adjust tests after the upgrade of github.com/VictoriaMetrics/metrics from v1.8.3 to v1.9.0
2019-11-25 13:43:57 +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
19dfe52254
app/vmselect/promql: properly handle histogram_quantile(0, ...)
with zero buckets
2019-11-23 14:02:35 +02:00
Aliaksandr Valialkin
7753c8c0a1
app/vmselect/promql: transparently apply prometheus_buckets
in histogram_quantile
2019-11-23 11:48:51 +02:00
Aliaksandr Valialkin
c4287b3c86
app/vmselect/promql: add prometheus_buckets
function for converting the upcoming histogram buckets from github.com/VictoriaMetrics/metrics
to Prometheus-compatible buckets
2019-11-23 00:20:20 +02:00
Aliaksandr Valialkin
2f58f37f07
app/vmselect/promql: add lag(q[d])
function, which returns the lag between the current timestamp and the timstamp for the last data point in q
2019-11-01 12:21:33 +02:00
Aliaksandr Valialkin
956fdd89d3
app/vmselect/promql: take into account the previous point when calculating max_over_time
and min_over_time
...
This lines up with `first_over_time` function used in `rollup_candlestick`, so `rollup=low` always returns
the minimum value.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/204
2019-10-08 12:30:05 +03:00
Aliaksandr Valialkin
67d44b0845
app/vmselect/promql: do not generate timestamps for NaN values in timestamp
function according to Prometheus logic
2019-09-27 18:54:43 +03:00
Aliaksandr Valialkin
26dc21cf64
app/vmselect/promql: add increases_over_time
and decreases_over_time
functions
...
`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 20:38:44 +03:00
Aliaksandr Valialkin
4d636c244d
app/vmselect/promql: binary operation fixes according to Prometheus behaviour
...
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 17:42:52 +03:00
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
db4560ca31
app/vmselect/promql: reset timeseries name on group_left and group_right as Prometheus does
2019-09-03 20:42:54 +03:00
Aliaksandr Valialkin
1272e407b2
app/vmselect/promql: attempt to repair invalid bucket counts passed to histogram_quantile
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/154
2019-08-22 14:39:46 +03:00
Aliaksandr Valialkin
d3fd113a80
app/vmselect/promql: add label_value(q, label_name)
func, which returns numeric value labels with name label_name
in q
2019-08-20 00:28:34 +03:00
Aliaksandr Valialkin
10f5a26bec
app/vmselect/promql: return NaN values if invalid bucket counts are passed to histogram_quantile
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136
2019-07-30 22:05:10 +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
2db685c19c
app/vmselect/promql: properly preserve metric name after applying functions in any case from transformFuncsKeepMetricGroup
2019-07-09 23:10:35 +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
b9166a60ff
app/vmselect: do not return empty time series in /api/v1/query
result
2019-07-01 17:16:34 +03:00
Aliaksandr Valialkin
74c0fb04f3
app/vmselect/promql: consistency renaming: candlestick -> rollup_candlestick
2019-06-29 03:13:02 +03:00
Aliaksandr Valialkin
796b010139
app/vmselect: add candlestick(m[d])
func for returning open
, close
, low
and high
rollups on the given time range d
...
This function is frequently used in financial apps. See https://en.wikipedia.org/wiki/Candlestick_chart
2019-06-27 18:46:13 +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
9e1119dab8
app/vmselect/promql: ajdust data model to the model used in Prometheus
...
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 21:54:48 +03:00
Aliaksandr Valialkin
47a3228108
app/vmselect/promql: do not strip __name__
form time series after binary comparison operation
...
Example:
foo > 10
Would leave `foo` name for all the matching time series on the left.
2019-06-21 13:09:38 +03:00
Aliaksandr Valialkin
a8db528930
app/vmselect/promql: merge non-overlapping duplicate time series in group_left
and group_right
joins
2019-06-12 20:32:32 +03:00
Aliaksandr Valialkin
d15d0127fe
app/vmselect/promql: add alias(q, name)
function that sets the given name to all the time series in q
2019-05-24 02:41:45 +03:00
Aliaksandr Valialkin
fb140eda33
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 16:26:19 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00