Aliaksandr Valialkin
84decc4254
app/vmselect/promql: consistently return zero from deriv(const)
2021-11-17 18:01:58 +02:00
Aliaksandr Valialkin
aa6d11a33f
app/vmselect/promql: add now()
function, which returns the current timestamp as a floating-point value in seconds
2021-11-17 16:42:11 +02:00
Aliaksandr Valialkin
1eb756fd11
app/vmselect/promql: arrange function names in the code in alphabetical order
...
This should simplify code maintenance in the future
2021-11-14 13:54:43 +02:00
Aliaksandr Valialkin
82cf9f26db
app/vmselect/promql: prevent from incorrect calculations for deriv()
over multiple samples with identical timestamps
2021-11-12 13:53:30 +02:00
Aliaksandr Valialkin
31486f2244
app/vmselect/promql: properly return durations smaller than one second from duration_over_time() function
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1780
2021-11-09 11:42:43 +02:00
Aliaksandr Valialkin
3a1ac218ba
app/vmselect/promql: add duration_over_time(m[d], max_interval)
function
...
This function calculates the actual lifetime of the time series on the given lookbehdind window `d`
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1780
2021-11-08 13:14:57 +02:00
Aliaksandr Valialkin
a102fca4ac
app/vmselect/promql: add limit_offset(limit, offset, q)
function, which can be used for paging over big number of time series
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1778
2021-11-03 16:03:10 +02:00
Aliaksandr Valialkin
43bf0333eb
app/vmselect/promql: add label_graphite_group()
function for extracting groups from Graphite metric names
2021-11-03 13:20:34 +02:00
Aliaksandr Valialkin
99784b21c1
all: fix build issues and tests for Apple M1
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1653
2021-10-27 15:07:19 +03:00
Aliaksandr Valialkin
d8ce86d685
app/vmselect/promql: reduce the precision from 15 significant digits to 13 significant digits when comparing float64 results in tests
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1738
2021-10-24 13:32:25 +03:00
Aliaksandr Valialkin
ed994873fd
app/vmselect/promql: randomize the static selection of time series returned from limitk()
...
Sort series by a hash calculated from the series labels. This should guarantee "random" selection of the returned time series.
Previously the selection could be biased, since time series were sorted alphabetically by label names and label values.
2021-10-16 21:16:34 +03:00
Aliaksandr Valialkin
da0adf446d
app/vmselect/promql: typo fix in comment: didsn't -> didn't
2021-10-16 13:00:10 +03:00
Aliaksandr Valialkin
48c3668b3d
app/vmselect/promql: add atan2
binary operator, which is going to be added in Prometheus 2.31
...
See https://github.com/prometheus/prometheus/pull/9248
2021-10-11 21:17:23 +03:00
Aliaksandr Valialkin
b3d28f3872
app/vmselect/promql: add missing trigonometric functions, which are going to be added in Prometheus 2.31
...
See https://github.com/prometheus/prometheus/issues/9233
2021-10-11 21:17:21 +03:00
Aliaksandr Valialkin
f1e1d20ac4
app/vmselect/promql: consistently return the same set of time series from limitk()
function
...
This is the expected behaviour by most users.
2021-10-08 19:55:29 +03:00
Aliaksandr Valialkin
cbf01f7384
app/vmselect/promql: substitute rollupFuncsCannotAdjustWindow with rollupFuncsCanAdjustWindow
...
The list of functions, which can adjust lookbehind window is more limited than the rest of functions,
so it is better from maintainability and readability PoV using the allowlist instead of blocklist.
2021-10-07 13:19:22 +03:00
Aliaksandr Valialkin
7e6ec0bbe9
app/vmselect/promql: return back the behaviour for deriv()
function when the lookbehind window doesnt contain enough points
...
It is expected that the `deriv(m[d])` returns non-empty value if the lookbehind window `d`
contains less than 2 samples in the same way as `rate()` does.
This is a follow-up after 3e084be06b
.
2021-10-07 12:55:58 +03:00
Roman Khavronenko
0a8804d6aa
app/vmselect: make predict_linear
and deriv
compatible with Prometheus ( #1681 )
...
Previously, `predict_linear` returned slightly different results comparing
to Prometheus. The change makes linear regression algorithm compatible
with Prometheus.
`deriv` was excluded from the list of functions which can adjust the time
window for the same reasons.
2021-10-07 12:55:56 +03:00
Aliaksandr Valialkin
ec6eb03d65
app/vmselect/promql: add topk_last
and bottomk_last
functions
2021-09-30 13:23:27 +03:00
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
Roman Khavronenko
57eb5ef194
app/vmselect: fix testRowsEqual
func NaN checks ( #1666 )
...
It appeared, that `testRowsEqual` NaN comparison was incorrect.
The fix caused some tests to fail. Please see the change and
tests updated.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-30 13:04:08 +03:00
Roman Khavronenko
444a8882f4
app/vmselect: disable time-window adjustment for min/max_over_time
funcs ( #1658 )
...
Adjustment results into discrepancy between Prometheus and VM on time windows
smaller than scrape interval.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-29 00:43:54 +03:00
Roman Khavronenko
f46f847531
app/vmselect: always return zero for stddev
func if there is only one value ( #1659 )
...
The fix will always return zero if received set of items consists of one
element only, which also means no deviation.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-29 00:42:19 +03:00
Roman Khavronenko
72468c9d75
app/vmselect: return NaN instead of 0 for empty value sets ( #1660 )
...
The change affects `count/stddev/stdvar_over_time` funcs and makes
them to return NaN instead of zero when there is no datapoints
in a time window.
This is needed for improving compatibility with Prometheus.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-29 00:38:24 +03:00
Roman Khavronenko
c8ac8f44b2
app/vmselect: rm quantile_over_time
fast-path optimisations ( #1662 )
...
The removed fast path optimisations weren't consistent with
`quantile` function behavior and results into discrepancy.
Specifically, results didn't match in cases when:
* 0 < phi > 1;
* values contain only one element.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-29 00:35:59 +03:00
Aliaksandr Valialkin
4b3951fd86
app/vmselect/promql: add rollup_scrape_interval(m[d])
function
...
It calculates the min, max and avg scrape intervals for m over the given lookbehind window d
2021-09-27 19:21:55 +03:00
Aliaksandr Valialkin
eff31c10ec
app/vmselect/promql: follow-up after 526dd93b32
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1625
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1612
2021-09-27 18:57:03 +03:00
Roman Khavronenko
6061464d80
app/vmselect: quantile
func compatiblity with Prometheus ( #1646 )
...
* app/vmselect: `quantile` func compatiblity with Prometheus
The `quantile` func was previously calculated by https://github.com/valyala/histogram
package. The result of such calculation was always the closest real value to
requested quantile. While in Prometheus implementation interpolation is used.
Such difference may result into discrepancy in output between Prometheus and
VictoriaMetrics.
This commit adds a Prometheus-like `quantile` function. It also used by other
functions which depend on it, such as `quantiles`, `quantile_over_time`, `median` etc.
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1625
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* app/vmselect: `quantile` review fixes
* quantile functions were split into multiple to provide
different API for already sorted data;
* float64sPool is used for reducing allocations. Items in pool may have
different sizes, but defining a new pool was complicates due to name collisions;
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-09-27 18:57:02 +03:00
Aliaksandr Valialkin
a746fe8778
app/vmselect/promql: follow-up after 57b3320478
2021-09-24 01:25:04 +03:00
Roman Khavronenko
7ac0559d4f
app/vmselect: make sorting for query result similar to Prometheus ( #1647 )
...
* app/vmselect: make sorting for query result similar to Prometheus
Updated sorting allows to get the order of series in result similar or equal
to what Prometheus returns.
The change is needed for compatibility reasons.
* Update app/vmselect/promql/exec_test.go
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-09-24 01:25:03 +03:00
Aliaksandr Valialkin
1115c2f235
app/vmselect/promql: align the behavior of or
, and
and unless
operators with on (labels)
modifier to Prometheus
...
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
76c650bbda
app/vmselect/promql: add quantiles_over_time("phiLabel", phi1, ..., phiN, m[d])
function for calculating multiple quantiles at once
2021-09-17 23:35:04 +03:00
Aliaksandr Valialkin
81d24045c2
app/vmselect/promql: add histogram_quantiles("phiLabel", phi1, ..., phiN, buckets) function
...
This function calculates multiple quantiles over the given buckets at once
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1573
2021-09-17 13:39:06 +03:00
Aliaksandr Valialkin
4ed7548ced
app/vmselect/promql: optimize quantiles() calculation
...
Calculate quantiles in one go instead of calculating each quantile individually
2021-09-17 12:38:21 +03:00
Aliaksandr Valialkin
3f8de4f82f
app/vmselect/promql: add mad(q)
and outliers_mad(tolerance, q)
functions to MetricsQL
2021-09-16 13:35:38 +03:00
Aliaksandr Valialkin
19516aedb5
app/vmselect/promql: use Prometheus-compatible label value formatting for count_values
function
2021-09-13 13:48:18 +03:00
Aliaksandr Valialkin
9b07cb2988
app/vmselect/promql: keep metric name in rollup_candlestick
results, since they don't change the original series meaning
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1600
2021-09-09 19:24:10 +03:00
Aliaksandr Valialkin
39bb6bdd79
app/vmselect/promql: add quantile("phiLabel", phi1, ..., phiN, q)
aggregate function to MetricsQL
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1573
2021-08-27 18:40:25 +03:00
Aliaksandr Valialkin
335de30083
app/vmselect/promql: make fmt
after 0078486ea7
2021-08-23 23:05:34 +03:00
Aliaksandr Valialkin
40b06e84f8
app/vmselect/promql: rename sign()
function to sgn()
in order to be consistent with Prometheus
...
See https://github.com/prometheus/prometheus/pull/8457 for details.
2021-08-23 11:46:29 +03:00
Aliaksandr Valialkin
91534057a3
app/vmselect/prometheus: do not extend [d]
to the detected interval between samples for first_over_time(m[d])
...
This is for the sake of consistency with similar change for the last_over_time(m[d]) at a724229b5d
2021-08-21 19:56:56 +03:00
Aliaksandr Valialkin
ee1f3414d1
app/vmselect/promql: do not override [d]
at last_over_time(m[d])
if [d]
is smaller than scrape_interval
...
Since most users do not expect the overriding of explicitly set `[d]`.
2021-08-19 10:33:10 +03:00
Aliaksandr Valialkin
5d92fafc40
app/vmselect: add -search.noStaleMarkers
command-line flag for disabling stale markers handling in queries
...
This option allows reducing CPU usage a bit when VictoriaMetrics is used
for collecting and processing non-Prometheus data. For example, InfluxDB line protocol, Graphite, OpenTSDB, CSV, etc.
2021-08-18 13:58:06 +03:00
Aliaksandr Valialkin
49886ecbc8
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 13:22:15 +03:00
Aliaksandr Valialkin
38065bec7b
app/vmselect/promql: move common condition to dropStaleNaNs in order to improve code maintainability
2021-08-17 11:00:58 +03:00
Aliaksandr Valialkin
5420c3d967
app/vmselect/promql: drop staleness marks before calling rollupConfig.Do
...
This allows dropping staleness marks only once and then calculate multiple rollup functions on the result.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
2021-08-15 13:22:26 +03:00
Aliaksandr Valialkin
6c4c54eaad
Revert "app/vmselect/promql: properly handle Prometheus staleness marks in removeCounterResets functions"
...
This reverts commit 94dfcb6747a3b29a11d14e71bea21a2312bb6346.
It is better to remove staleness marks (decimal.StaleNaN) before calling rollupConfig.Do, e.g. in preFunc
2021-08-15 13:22:24 +03:00
Aliaksandr Valialkin
af4a306d7b
app/vmselect/promql: properly handle Prometheus staleness marks in removeCounterResets functions
...
Prometheus stalenss marks shouldn't be changed in removeCounterResets. Otherwise they will be converted to an ordinary NaN values,
which couldn't be removed in dropStaleNaNs() function later. This may result in incorrect calculations for rollup functions.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
2021-08-14 12:45:31 +03:00
Aliaksandr Valialkin
c1f81f08d4
all: add support for Prometheus staleness markers
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
2021-08-13 12:13:15 +03:00
Aliaksandr Valialkin
60cfa5f100
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 12:21:53 +03:00
Aliaksandr Valialkin
5d255846ac
all: add go:build
lines for Go1.17
...
See https://tip.golang.org/doc/go1.17#gofmt for more details
2021-07-26 15:50:46 +03:00
Aliaksandr Valialkin
b047feeb8b
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 01:44:24 +03:00
Aliaksandr Valialkin
9add9d86a6
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 17:19:32 +03:00
Aliaksandr Valialkin
856aecae05
app/vmselect/promql: return the last timestamp for the max / min value from tmax_over_time()
and tmin_over_time()
function as most users expect
2021-06-23 14:18:37 +03:00
Aliaksandr Valialkin
b92d110cad
app/vmselect: log slow requests to all the /api/v1/*
handlers if their execution time exceeds -search.logSlowQueryDuration
2021-06-18 19:07:03 +03:00
Roman Khavronenko
a15c947045
promql: fix increase_pure
calculation for cases with stale series ( #1381 )
...
Due to staleness handling, increase_pure were using incorrect previous value
during calculation in cases where series disappears for period longer
than staleness period and then returns back. The fix suppose to account
for a real datapoint value before staleness takes place. The fix should
remove unexpected spikes while using `increase_pure` for staled series.
2021-06-15 17:37:51 +03:00
John Belmonte
3e79f3994e
spelling fix: synonym ( #1363 )
2021-06-11 10:58:48 +03:00
Aliaksandr Valialkin
e8e7f03394
app/vmselect/promql: typo fix in the comment
2021-06-09 18:34:57 +03:00
Aliaksandr Valialkin
180829b8c2
app/vmselect/promql: add timezone_offset(tz)
function
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1306
2021-05-20 11:54:06 +03:00
Aliaksandr Valialkin
56b08390f6
app/vmselect/promql: allow to use 2x more memory for query processing in cluster mode compared to single-node mode
...
`vmselect` has no `vmstorage`-related caches. So it can use more memory for query processing compared to single-node VictoriaMetrics.
2021-05-12 14:43:49 +03:00
Aliaksandr Valialkin
e48fd5776b
app/vmselect/promql: fix tests after d3fa0ccabd
2021-04-08 00:17:40 +03:00
Aliaksandr Valialkin
f90bf265f4
app/vmselect/promql: properly detect aggregate topk*
and bottomk*
aggregate functions in order to disable duplicate sorting
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1189
2021-04-08 00:10:33 +03:00
Aliaksandr Valialkin
3d5f1f779f
app/vmselect: do not sort series returned from topk*
and bottomk*
functions, since these series are already sorted in user-expected order
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1189
2021-04-07 14:16:02 +03:00
Aliaksandr Valialkin
4aa59cae7c
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 22:06:50 +03:00
Aliaksandr Valialkin
b9469de410
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 23:56:30 +03:00
Aliaksandr Valialkin
31d3d02d25
app/vmselect/promql: remove the limit on the number of time series that can be sorted, since it may confuse users
...
Always sort time series returned from `/api/v1/query` and `/api/v1/query_range` unless `sort_*` function is used at top level of the query.
2021-04-02 16:50:02 +03:00
Aliaksandr Valialkin
b473c21915
app/vmselect/promql: do not merge time series during requests to /api/v1/query
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1141
2021-03-25 13:56:23 +02:00
Aliaksandr Valialkin
7f9863254d
app/vmselect: improve description for -search.maxPointsPerTimeseries
command-line flag
2021-03-22 16:44:36 +02:00
Aliaksandr Valialkin
92531a38c4
app/vmselect/promql: increment key prefix for faster reset for rollup result cache
2021-03-22 11:59:39 +02:00
Aliaksandr Valialkin
667d129e1e
app/vmselect/promql: typo fix after 9666834045
2021-03-17 15:11:54 +02:00
Aliaksandr Valialkin
69201806f8
app/vmselect/promql: merge adjancent buckets with the smallest summary number of hits in buckets_limit()
function
...
This should improve accuracy for the returned buckets
2021-03-17 14:31:29 +02:00
Aliaksandr Valialkin
f54ece438d
app/vmselect/promql: do not crash if histogram_over_time()
function name contains uppercase letters such as Histogram_over_time()
2021-03-16 12:23:55 +02:00
Aliaksandr Valialkin
30ab0eec27
app/vmselect/promql: reduce overhead on scrape interval estimation
...
It should be enough to use the first 20 datapoints instead of 100 datapoints for scrape interval estimation.
2021-03-15 20:32:35 +02:00
Aliaksandr Valialkin
8844b38745
app/vmselect/promql: fix tests after 2dae0a2c47
2021-03-15 20:20:27 +02:00
Aliaksandr Valialkin
6b9bba7448
app/vmselect: add round_digits
query arg to /api/v1/query
and /api/v1/query_range
handlers for limiting the number of decimal digits after the point
2021-03-15 12:38:59 +02:00
Aliaksandr Valialkin
942890b1bb
app/vmselect/promql: follow up for 433fff0006
2021-03-09 12:54:23 +02:00
Nikolay
28e450cd7c
duplicate timeseries fix for prometheus_buckets function ( #1119 )
...
* try fix for prometheus_buckets
* merge possible end of the bucket collision
2021-03-09 12:54:21 +02:00
Aliaksandr Valialkin
5277507932
app/vmselect/promql: add histogram_avg()
, histogram_stddev()
and histogram_stdvar()
functions to MetricsQL
2021-03-04 14:12:52 +02:00
Nikolay
673b10dd7f
adds enforced tag filters into cache key ( #1095 )
2021-02-27 00:23:38 +02:00
Aliaksandr Valialkin
e38ca28d99
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 22:56:04 +02:00
Aliaksandr Valialkin
0144b164c7
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 17:26:27 +02:00
Aliaksandr Valialkin
d16effc29e
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 00:41:30 +02:00
Aliaksandr Valialkin
5dbe88a1c6
app/vmselect/promql: add increase_pure()
function to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
2021-02-22 19:15:31 +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
46e98ed490
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 15:11:15 +02:00
Aliaksandr Valialkin
54d2f67924
app/vmselect/promql: properly make copies of EvalConfig
2021-02-11 12:41:37 +02:00
Aliaksandr Valialkin
5973fd4067
app/vmselect/promql: make a copy of EvalConfig when executing q1
and q2
in parallel for q1 binary_op q2
...
This should prevent from data races if the underlying functions modify EvalConfig contents.
2021-02-10 23:06:58 +02:00
Aliaksandr Valialkin
985c3e301d
app/vmselect: parallelize q1 <binary_op> q2
queries by running q1
and q2
in parallel
...
This should reduce query execution times.
2021-02-10 23:00:56 +02:00
Aliaksandr Valialkin
8de3a329ff
app/vmselect: deprecate -search.treatDotsAsIsInRegexps
in favor to {__graphite__="foo.*.bar"}
syntax
2021-02-03 20:36:42 +02:00
Aliaksandr Valialkin
7d23f3ff3a
app/vmselect: add ability to set an additional label filters via extra_label
query arg
2021-02-01 17:42:35 +02:00
Aliaksandr Valialkin
44c74f1e79
app/vmselect/promql: improve documentation for -search.maxPointsPertimeseries
command-line flag
...
This should reduce incorrect usage and assumptions for this flag.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1020
2021-01-22 13:00:35 +02:00
Aliaksandr Valialkin
e55205220b
app/vmselect: add -search.maxStepForPointsAdjustment
command-line flag, which can be used for disabling adjustment for points returned from /api/v1/query_range
handler if they have timestamps closer than -search.latencyOffset
to the current time
2021-01-19 22:57:50 +02:00
Aliaksandr Valialkin
c5bdab5a4c
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 12:43:47 +02:00
Aliaksandr Valialkin
8cae98aa78
app/vmselect/promql: properly parse escaped multibyte utf8 code sequences in metric names and labels names
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/990
2021-01-13 10:59:32 +02:00
Aliaksandr Valialkin
df6e399f73
app/vmselect/promql: add tfirst_over_time(m[d])
and tlast_over_time(m[d])
MetricsQL functions for returning timestamps for the first and the last samples in m
over d
2021-01-12 16:12:47 +02:00
Aliaksandr Valialkin
47872ada7e
app/vmselect/promql: do not ajdust offset
value provided in the query
...
Previously it could be modified in order to improve response cache hit ratio.
This is unneeded, since cache hit ratio should remain good because the query time range
should be already aligned to multiple of `step` values.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/976
2020-12-27 14:10:15 +02:00
Aliaksandr Valialkin
0e739efc88
app/vmselect/promql: simplify defer call for querystats.RegisterQuery
2020-12-27 12:07:56 +02:00
Aliaksandr Valialkin
e6deb39064
app/vmselect: refactor /api/v1/stats/top_queries
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
2020-12-25 17:24:25 +02:00
Nikolay
76d092c091
Adds query stats handler ( #945 )
...
* Adds query stat handler,
for query and query_range api, victoriametrics tracks query execution time,
stats are expored at /api/v1/status/queries endpoint with topN param
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
* fixed query stats bugs
* improves queryStats tracker
* improves query stat
* small fix
* fix tests
* added more tests
* fixes 386 tests
* naming fixes
* adds drop for outdated records
2020-12-25 17:24:24 +02:00
Aliaksandr Valialkin
262cf81757
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 01:25:03 +02:00