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Author SHA1 Message Date
Aliaksandr Valialkin
84b5532bc1
app/vmselect/promql: add range_zscore(q) and range_trim_zscore(z, q) functions 
These functions may be useful for dropping outliers at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3759
 2023-02-18 22:43:53 -08:00
Aliaksandr Valialkin
450b6f6d39
app/vmselect/promql: add range_mad(q) and range_trim_outliers(k, q) functions 
These functions may help trimming outliers during query time
for the use case described at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3759
 2023-02-18 15:18:47 -08:00
Aliaksandr Valialkin
7274424252
app/vmui: tooltip formatting enhancements according to https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3706#issuecomment-1429980038 2023-02-14 23:38:05 -08:00
Oleksandr Redko
0e1c395609
app,lib: fix typos in comments (#3804) 2023-02-13 09:32:35 -08:00
Aliaksandr Valialkin
27b3209816
app/vmui: show median instead of avg on graph tooltip and line legend 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3706
 2023-02-11 12:52:50 -08:00
Aliaksandr Valialkin
db7f237da9
app/vmselect/promql: add mad_over_time(m[d]) function 
See https://github.com/prometheus/prometheus/issues/5514
 2023-02-11 01:06:39 -08:00
Aliaksandr Valialkin
34379d4cf1
all: run apk update && apk upgrade in base Alpine Docker image in order to get all the recent security fixes 2023-02-09 14:03:02 -08:00
Aliaksandr Valialkin
82b5fa2fd0
app/vmui: UX enhancements for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3706 
- Display `min` value additionally to `avg`, `max` and `last`
- Allow copy-n-pasting metric name with its labels from both legend and tooltup
 2023-02-09 11:05:57 -08:00
Yury Molodov
13f55fc21e
vmui: lazy loading predefined panels (#3795) 
* fix: change logic lazy loading predefined panels

* app/vmselect/vmui: `make vmui-update`

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-02-09 00:12:29 -08:00
Yury Molodov
54bfd22ec5
vmui: add last/max/avg values (#3789) 
* feat: add last/max/avg values (#3706)

* fix: change filter exclude values

* app/vmui: wip

- improve the visualization for avg/max/last values
- make getAvgFromArray() function resilient against inf/undefined/nil
- export getLastFromArray() function, which is resilient against inf/undefined/nil
- run `make vmui-update`

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-02-08 22:42:05 -08:00
Aliaksandr Valialkin
c9a32ebaf7
app/vmselect/vmui: make vmui-update after e4c04b6dbe 2023-02-03 19:34:20 -08:00
Zakhar Bessarab
626bd22157
fix: vmselect multi-level setup panic (#3738) 
* app/vmselect/netstorage: fix panic for multi-level cluster setup when `replicationFactor` was set and request contained `trace` parameter (#3734)

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* app/vmselect/netstorage: use correct context for retry

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
 2023-02-01 08:56:36 -08:00
Aliaksandr Valialkin
2049114e1f
app/vmselect/vmui: make vmui-update after dcc5616126 2023-01-31 13:24:54 -08:00
Yury Molodov
730025d1dc
vmui: add select of Tenant ID (#3673) 
* feat: add select of tenantID

* feat: replace tenantID to default url

* fix: move the tenantID selector to the top header

* fix: hide tenantID selector by condition

* fix: correct z-index

* app/vmselect/vmui: `make vmui-update`

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-27 15:54:09 -08:00
Aliaksandr Valialkin
bccbe07c33
lib/netutil: move IsTrivialNetworkError() function there, since it is used in multiple places across the code 2023-01-27 13:24:44 -08:00
Nikolay
ebebaecd94
lib/netutil: init implimentation of proxy protocol (#3687) 
* lib/netutil: init implimentation of proxy protocol
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3335

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-26 23:25:22 -08:00
Yury Molodov
29fd95d426
vmui: include fonts in its bundle (#3705) 
* feat: include fonts in the build

* fix: reduce size fonts

* wip

- Document the change at docs/CHANGELOG.md
- Run `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-24 09:31:37 -08:00
Aliaksandr Valialkin
6ff15ca135
app/vmselect: use consistent randomizer in tests 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3683
 2023-01-23 19:27:40 -08:00
Aliaksandr Valialkin
b046af8a4d
app/vmselect: make vmui-update after df7b81b44d 2023-01-20 12:07:29 -08:00
Aliaksandr Valialkin
46645f5d94
app/vmui: increase perceived performance by 2.5x by reducing the delay before the query execution from 0.8s to 0.3s 
The delay cannot be removed, since it is used for limiting the rate of queries sent to VictoriaMetrics during graph scrolling.
 2023-01-18 01:33:51 -08:00
Aliaksandr Valialkin
e01f52d517
app/vmselect/promql: updates tests for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3664 2023-01-17 23:26:06 -08:00
Yury Molodov
0561ba3557
vmui: correctly display range results in Table view (#3657) 
* fix: properly display range results

* fix: set range values to empty array

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-17 21:04:50 -08:00
Yury Molodov
060780af69
vmui: make the step input field global across all the tabs and views (#3644) 
* feat: make the step input field global

* fix: correct get step from url

* fix: set minimumSignificantDigits to 1

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-15 13:47:48 -08:00
Aliaksandr Valialkin
ce47faf102
app/vmselect/promql: reduce memory allocations when searching for time series pairs with identical labelsets in q1 op q2 queries 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3641
 2023-01-15 13:00:28 -08:00
Aliaksandr Valialkin
fe8802bbc8
app/vmselect/promql: reduce the number of memory allocations inside getCommonLabelFilters() 
This should improve performance a bit for `q1 op q2` queries
 2023-01-15 12:56:21 -08:00
Aliaksandr Valialkin
26f6cfd3b2
app/vmselect/netstorage: tune the number of blocks per series which should be unpacked by a single goroutine instead of spinning up multiple goroutines 
This reduces overhead on time series data unpacking for typical cases,
this reducing CPU usage at vmselect

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3641
 2023-01-12 09:35:15 -08:00
Aliaksandr Valialkin
41b0b951f3
app/vmselect/netstorage: unpack series blocks in the current goroutine if their count doesnt exceed 100 
This should improve performance a bit for common case
 2023-01-12 01:31:38 -08:00
Aliaksandr Valialkin
d33a65e401
app/vmselect/promql: reduce memory allocations at getCommonLabelFilters() function 
Intern tag keys and values there
 2023-01-12 01:27:34 -08:00
Aliaksandr Valialkin
820357f434
app/vmselect: follow-up after 820312a2b1 
- Move the feature description at the correct place at docs/CHANGELOG.md
- Run `make vmui-update`
- Various cosmetic fixes

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3322
 2023-01-11 23:37:51 -08:00
Dmytro Kozlov
f2862f088b
app/vmui: define custom path for dashboards json file (#3545) 
* app/vmui: define custom path for dashboards json file

* app/vmui: remove unneeded code

* app/vmui: move handler to own file, fix show dashboards,

* app/vmui: move flag to handler, add flag description

* app/vmauth: fix part of the comments

* feat: add store for dashboards

* fix: prevent fetch dashboards for app mode

* app/vmauth: use simple cache for predefined dashboards

* app/vmauth: update dashboards doc

* app/vmauth: fix ci

* app/vmui: decrease timeout

* app/vmselect: removed cache, fix comments

* app/vmselect: remove unused const

* app/vmselect: fix error log, use slice byte instead of struct

Co-authored-by: Yury Moladau <yurymolodov@gmail.com>
 2023-01-11 23:33:30 -08:00
Yury Molodov
4295ca2ce2
vmui: small changes on explore metrics page (#3634) 
* fix: change issue link

* fix: remove legend toggle

* fix: move select graph size

* feat: save url params on explore metrics page

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-11 22:17:06 -08:00
Aliaksandr Valialkin
f7130d571d
app/vmselect: improve logging when the incoming query cannot be executed because of timeout in the wait queue 2023-01-11 01:12:25 -08:00
Aliaksandr Valialkin
675e0fa0ee
app/vmselect/promql: typo fix after 0771d57860 2023-01-11 01:06:18 -08:00
Aliaksandr Valialkin
3d22532bb8
app/vmselect/promql: make a copy of per-series timestamps before their modification 
The per-series timestamps are usually shared among series, so it is unsafe modifying them.

The issue has been appeared after the optimization at 2f3ddd4884
 2023-01-11 00:59:02 -08:00
Aliaksandr Valialkin
8a35377cf3
app/vmselect/promql: move the eval function args in parallel query trace outside the loop 2023-01-10 22:23:43 -08:00
Aliaksandr Valialkin
aa027529eb
lib/httpserver: directly pass flag value to CheckAuthFlag() 
There is no sense in passing a pointer to flag value there.

This is a follow-up for 4225a0bd75
 2023-01-10 15:59:55 -08:00
Zakhar Bessarab
10f314cdbd
Use httpAuth.* flags as a fallback for endpoints protected by *AuthKey flags (#3582) 
* {lib/server, app/}: use `httpAuth.*` flag as fallback for `*AuthKey` if it is not set

* lib/ingestserver/opentsdbhttp: fix opentdb HTTP handler not respecting `httpAuth.*` flags

* Apply suggestions from code review

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-10 15:57:55 -08:00
Aliaksandr Valialkin
98931449c1
app/vmselect/netstorage: reduce tail latency during query processing 
Previously the selected time series were split evenly among available CPU cores
for further processing - e.g unpacking the data and applying the given rollup
function to the unpacked data.
Some time series could be processed slower than others.
This could result in uneven work distribution among available CPU cores,
e.g. some CPU cores could complete their work sooner than others.
This could slow down query execution.

The new algorithm allows stealing time series to process from other CPU cores
when all the local work is done. This should reduce the maximum time
needed for query execution (aka tail latency).

The new algorithm should also scale better on systems with many CPU cores,
since every CPU processes locally assigned time series without inter-CPU communications.

The inter-CPU communications are used only when all the local work is finished
and the pending work from other CPUs needs to be stealed.
 2023-01-10 13:42:26 -08:00
Aliaksandr Valialkin
158a280822
app/vmselect/netstorage: reduce memory allocations when unpacking time series 
Unpack time series with less than 4M samples in the currently running goroutine.
Previously a new goroutine was being started for unpacking the samples.
This was requiring additional memory allocations.
 2023-01-09 23:17:34 -08:00
Aliaksandr Valialkin
c8bd3534cb
app/vmselect/promql: eliminate memory allocation when sorting values inside float64s 2023-01-09 23:06:57 -08:00
Aliaksandr Valialkin
7956b0d974
app/vmselect/promql: pre-allocate memory for values to be merged in mergeTimeseries() 
This should reduce the number of memory re-allocations
 2023-01-09 22:52:19 -08:00
Aliaksandr Valialkin
895d5d9d22
app/vmselect/promql: consistently intern series names obtained from marshalMetricNameSorted 
This reduces memory allocations when the returned series names are used as map keys later
 2023-01-09 22:46:30 -08:00
Aliaksandr Valialkin
12e2bcdf81
app/vmselect/promql: avoid memory allocations and copying from source timeseries to the returned result at timeseriesToResult() 2023-01-09 22:39:15 -08:00
Aliaksandr Valialkin
dd92e2050f
app/vmselect/promql: remove memory allocations from sortMetricTags() 2023-01-09 22:22:58 -08:00
Aliaksandr Valialkin
8050f5a18c
app/vmselect/promql: intern output series names inside timeseriesToResult() 
This reduces the number of memory allocations for repeated queries,
which return (almost) the same set of time series.
 2023-01-09 22:20:34 -08:00
Aliaksandr Valialkin
efb3c630fe
app/vmselect/promql: intern output series names during normal aggregation 2023-01-09 22:15:31 -08:00
Aliaksandr Valialkin
c0de651558
app/vmselect/promql: intern output series names during incremental aggregation 
This should reduce the number of memory allocations for repeated queries
 2023-01-09 22:12:05 -08:00
Aliaksandr Valialkin
abbac2c27c
app/vmselect/netstorage: pre-allocate 4 block references per each time series during querying 
Usually the number of blocks returned per each time series during queries is around 4.
So it is a good idea to pre-allocate 4 block references per time series
in order to reduce the number of memory allocations.
 2023-01-09 22:08:30 -08:00
Aliaksandr Valialkin
2483c67579
app/vmselect/netstorage: cache canonical MetricName for time series returned from the storage 
This reduces memory allocations for repeated queries, which return (almost) the same set of time series.
 2023-01-09 21:56:27 -08:00
Aliaksandr Valialkin
b7a4650ab0
all: use metricsql.CompileRegexp instead of regexp.Compile for compiling regexps used in graphite queries 
This should speed up repeated queries, since metricsql.CompileRegexp returns regexps from the cache
on subsequent calls for the same input regexp.
 2023-01-09 21:45:34 -08:00
Aliaksandr Valialkin
9f02f5a05a
app/vmselect/netstorage: eliminate memory allocation for sortBlocksHeap arg when calling mergeSortBlocks() 2023-01-09 21:29:01 -08:00
Aliaksandr Valialkin
96f04c9863
app/vmselect/netstorage: consistently select the sample with the biggest value out of samples with identical timestamps 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3333

This fix is based on https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3620 ,
but doesn't slow down the common case with merging replicated data blocks so significantly.

Benchmark results:

Before the change:

BenchmarkMergeSortBlocks/replicationFactor-1-4         	   13968	     85643 ns/op	 956.53 MB/s	    1700 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-2-4         	   10806	    109171 ns/op	1500.77 MB/s	    2191 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-3-4         	    8887	    130623 ns/op	1881.45 MB/s	    2660 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-4-4         	    7440	    157348 ns/op	2082.52 MB/s	    3174 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-5-4         	    6534	    184473 ns/op	2220.38 MB/s	    3612 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/overlapped-blocks-bestcase-4  	   13419	     85205 ns/op	 961.44 MB/s	    2213 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/overlapped-blocks-worstcase-4 	     579	   1894900 ns/op	  43.23 MB/s	   46760 B/op	       1 allocs/op

After the change:

BenchmarkMergeSortBlocks/replicationFactor-1-4         	   13832	     85298 ns/op	 960.40 MB/s	    1716 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-2-4         	    8833	    134222 ns/op	1220.66 MB/s	    2675 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-3-4         	    6487	    184830 ns/op	1329.65 MB/s	    3636 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-4-4         	    4977	    236318 ns/op	1386.61 MB/s	    4733 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/replicationFactor-5-4         	    4088	    296734 ns/op	1380.36 MB/s	    5761 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/overlapped-blocks-bestcase-4  	   14083	     84067 ns/op	 974.47 MB/s	    2110 B/op	       1 allocs/op
BenchmarkMergeSortBlocks/overlapped-blocks-worstcase-4 	     536	   2043534 ns/op	  40.09 MB/s	   50511 B/op	       1 allocs/op
 2023-01-09 12:58:18 -08:00
Aliaksandr Valialkin
5876821a16
all: small improvements in error messages and command-line flag descriptions related to concurrency limiters 2023-01-07 00:12:24 -08:00
Aliaksandr Valialkin
b275983403
lib/writeconcurrencylimiter: improve the logic behind -maxConcurrentInserts limit 
Previously the -maxConcurrentInserts was limiting the number of established client connections,
which write data to VictoriaMetrics. Some of these connections could be idle.
Such connections do not consume big amounts of CPU and RAM, so there is a little sense in limiting
the number of such connections. So now the -maxConcurrentInserts command-line option
limits the number of concurrently executed insert requests, not including idle connections.

It is recommended removing -maxConcurrentInserts command-line option, since the default value
for this option should work good for most cases.
 2023-01-06 22:07:16 -08:00
Aliaksandr Valialkin
20e9598254
lib/vmselectapi: limit the number of concurrently executed requests 
This should prevent from out of memory errors when big number of vmselect
nodes send many concurrent requests to vmstorage

The limit can be controlled at vmstorage via the following command-line flags:
- search.maxConcurrentRequests
- search.maxQueueDuration

See https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#resource-usage-limits
 2023-01-06 18:39:46 -08:00
Aliaksandr Valialkin
cd705b0f69
app/vmselect: improve error message when the request cannot be started because too many concurrent requests are already executed 2023-01-06 18:19:05 -08:00
Aliaksandr Valialkin
1d16cc9349
lib/promscrape: pre-fetch metric_relabel_configs rules when debugging metric relabeling for a particular target 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3407
 2023-01-05 03:28:14 -08:00
Yury Molodov
802febab74
vmui: improve Explore metrics (#3598) 
* feat: add multiple select

* feat: improve explore interface

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-05 02:24:05 -08:00
Aliaksandr Valialkin
78114e85d6
vendor: update github.com/VictoriaMetrics/metricsql from v0.50.0 to v0.51.0 
Updates https://github.com/VictoriaMetrics/metricsql/pull/7
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3589
 2023-01-05 01:50:26 -08:00
Aliaksandr Valialkin
ac890b3081
docs: update -help outputs for vm* tools 2023-01-03 23:27:31 -08:00
Aliaksandr Valialkin
d794e971fc
app/vmui: small usability improvements 
- Show in the line tooltip the number of the query which generates the given line.
  This simplifies comparison of lines generated by multiple queries.

- Show metric name as __name__ label in the line tooltip in the same way as other labels are shown there.
  This makes the label information in the tooltip more consistent.

- Properly quote label values with JSON.stringify(). This prevents from improper formatting
  when label values contain doublequote chars.

- Remove double curly braces artifact at graph legend for lines without names and labels.

- Properly use modifier for regular expressions across the code.
 2022-12-29 15:00:10 -08:00
Aliaksandr Valialkin
71f2979669
app/vmselect/vmui: make vmui-update after 1720bddb4f 2022-12-29 12:20:20 -08:00
ChenyuanHu
8dfe95761e
app/vmselect/prometheus: no need manually call queryDuration.UpdateDuration (#3564) 
There is no need to manually call `queryDuration.UpdateDuration(startTime)`, because `defer queryDuration.UpdateDuration(startTime)` is executed at the beginning of the function(L660).
 2022-12-29 10:41:51 -08:00
Aliaksandr Valialkin
f27bb19213
app/vmselect/searchutils: accept partial RFC3339 values at time, start and end query args 
This simplifies manual usage of the APIs. For example, the following query
would return the results over the 2022 year.

  /api/v1/query_range?start=2022&end=2023&step=1d&query=...

This is equivalent to:

  /api/v1/query_range?start=2022-01-01T00:00:00Z&end=2023-01-01T00:00:00Z&step=1d&query=...
 2022-12-28 19:46:21 -08:00
Yury Molodov
6f21435d2d
vmui: fix step field (#3561) 
* feat: use a unit next to the step value

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-12-28 16:01:33 -08:00
Artem Navoiev
393f4ab86f
update links to grafana dashboards (#3534) 
docs: update links to grafana dashboards

Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
 2022-12-28 11:22:02 -08:00
Aliaksandr Valialkin
197e58f1f6
app/vmui: show min, max and avg lines at Explore metrics graphs when instance is selected in the same way as when only the job is selected 
This improves consistency of the graphs.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3386
 2022-12-23 23:21:23 -08:00
Aliaksandr Valialkin
eaaae2fab8
app/vmselect/vmui: make vmui-update after 0dca224ec3 2022-12-23 22:26:23 -08:00
Aliaksandr Valialkin
8a1775f3a6
app/vmui: follow-up after f6d31f5216 
- Document the feature at docs/CHANGELOG.md.
- Document the metrics explorer at https://docs.victoriametrics.com/#metrics-explorer .
- Properly set `start` and `end` args for the selected time range
  when performing the request, which returns metric names.
- Improve queries, so they return lower number of lines and labels.
  This should improve metrics' exploration.
- Properly encode label filters and query args before passing them to VictoriaMetrics.
- Various cosmetic fixes.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3386
 2022-12-22 17:17:58 -08:00
Aliaksandr Valialkin
507e719c3f
app/vmselect/promql: add tests for d3de110070 2022-12-21 20:25:37 -08:00
Aliaksandr Valialkin
a77bb09e69
app/vmselect/promql: make sure that label_replace() doesn't create an empty dst_label if the src_label doesn't match regex 2022-12-21 20:25:37 -08:00
Aliaksandr Valialkin
45a34dca4e
app/vmselect/vmui: make vmui-update after 731d189fa9 2022-12-20 14:51:41 -08:00
Aliaksandr Valialkin
7fb314bb59
app/vmselect/promql: do not extend too short lookbehind window for rate() function if it is set explicitly 
Previously too short lookbehind window d for rate(m[d]) could be automatically extended
if it didn't cover at least two raw samples. This was needed in order to guarantee
non-empty results from rate(m[d]) on short time ranges.

Now the lookbehind window isn't extended if it is set explicitly,
since it is expected that the user knows what he is doing.

The lookbehind window continues to be extended when needed if it isn't set explicitly.
For example, in the case of rate(m).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3483
 2022-12-20 00:18:32 -08:00
Aliaksandr Valialkin
8d7d8f0125
app/vmselect/prometheus: follow-up after 86dae56bd0 
Return error if the provided latency_offset query arg cannot be parsed.
This should simplify debugging in production.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3481
 2022-12-16 17:16:26 -08:00
Roman Khavronenko
f8a3514e99
vmselect: support overriding of -search.latencyOffset (#3489) 
support overriding of `-search.latencyOffset` value via
URL param `latency_offset`.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3481

Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
 2022-12-16 17:14:23 -08:00
Aliaksandr Valialkin
1a88fe5b1f
lib/flagutil/bytes.go: properly handle values bigger than 2GiB on 32-bit architectures 
This fixes handling of values bigger than 2GiB for the following command-line flags:

- -storage.minFreeDiskSpaceBytes
- -remoteWrite.maxDiskUsagePerURL
 2022-12-14 19:29:57 -08:00
Aliaksandr Valialkin
f8e008f5ad
app/vmselect: show the link to /expand-with-exprs at /select/0/ page 2022-12-14 16:23:19 -08:00
Aliaksandr Valialkin
6d13ca2b88
app/vmselect: add /select/0/prometheus/expand-with-exprs page 2022-12-14 16:23:17 -08:00
Aliaksandr Valialkin
7f022e03f9
app/vmselect/vmui: make vmui-update 2022-12-14 12:02:05 -08:00
Aliaksandr Valialkin
d66d28f917
app/vmselect/vmui: make vmui-update 2022-12-12 17:49:07 -08:00
Aliaksandr Valialkin
808ce815e4
app/vmselect/promql: allow passing inf arg into functions, which accept numeric limit on the number of output time series 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3461
 2022-12-10 22:48:01 -08:00
Aliaksandr Valialkin
a521135b7b
lib/promscrape: allow editing relabeling configs and labels at /target-relabel-debug page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3407
 2022-12-10 12:47:47 -08:00
Aliaksandr Valialkin
72ea387c86
app/vmselect: properly serve static css for /select/.../metric-relabel-debug page 2022-12-10 03:04:43 -08:00
Aliaksandr Valialkin
97b41e727c
lib/promscrape: implement target-level and metric-level relabel debugging 
Target-level debugging is performed by clicking the 'debug' link at the corresponding target
on either http://vmagent:8429/targets page or on http://vmagent:8428/service-discovery page.

Metric-level debugging is perfromed at http://vmagent:8429/metric-relabel-debug page.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3407

See https://docs.victoriametrics.com/vmagent.html#relabel-debug
 2022-12-10 02:25:56 -08:00
Roman Khavronenko
909cd04c55
lib/storage: keep sample with the biggest value on timestamp conflict (#3421) 
The change leaves raw sample with the biggest value for identical
timestamps per each `-dedup.minScrapeInterval` discrete interval
when the deduplication is enabled.

```
benchstat old.txt new.txt
name                                         old time/op    new time/op    delta
DeduplicateSamples/minScrapeInterval=1s-10      817ns ± 2%     832ns ± 3%      ~     (p=0.052 n=10+10)
DeduplicateSamples/minScrapeInterval=2s-10     1.56µs ± 1%    2.12µs ± 0%   +35.19%  (p=0.000 n=9+7)
DeduplicateSamples/minScrapeInterval=5s-10     1.32µs ± 3%    1.65µs ± 2%   +25.57%  (p=0.000 n=10+10)
DeduplicateSamples/minScrapeInterval=10s-10    1.13µs ± 2%    1.50µs ± 1%   +32.85%  (p=0.000 n=10+10)

name                                         old speed      new speed      delta
DeduplicateSamples/minScrapeInterval=1s-10   10.0GB/s ± 2%   9.9GB/s ± 3%      ~     (p=0.052 n=10+10)
DeduplicateSamples/minScrapeInterval=2s-10   5.24GB/s ± 1%  3.87GB/s ± 0%   -26.03%  (p=0.000 n=9+7)
DeduplicateSamples/minScrapeInterval=5s-10   6.22GB/s ± 3%  4.96GB/s ± 2%   -20.37%  (p=0.000 n=10+10)
DeduplicateSamples/minScrapeInterval=10s-10  7.28GB/s ± 2%  5.48GB/s ± 1%   -24.74%  (p=0.000 n=10+10)
```

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3333
Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
 2022-12-08 18:18:36 -08:00
Aliaksandr Valialkin
353aad9da9
app/vmselect/searchutils: do not print flag name responsible for query timeout if the timeout isn't reached 
This should make the log message more clear
 2022-12-08 13:08:02 -08:00
Aliaksandr Valialkin
a257c5fe53
app/vmselect: typo fixes in code comments 2022-12-06 20:59:17 -08:00
Aliaksandr Valialkin
6423c0b901
app/vmselect/vmui: make vmui-update after 7645d9ae00 2022-12-05 23:10:42 -08:00
Aliaksandr Valialkin
c902500efc
app/vmselect/promql: add range_trim_spikes(phi, q) function for trimming phi percent of largest spikes per each time series returned by q 2022-12-05 21:55:24 -08:00
Aliaksandr Valialkin
3a25a4b1de
app/{vminsert,vmselect}: speed up TestInitStopNodes() 2022-12-03 23:53:14 -08:00
Zakhar Bessarab
e407e7243a
{app/vmstorage,app/vmselect}: add API to get list of existing tenants (#3348) 
* {app/vmstorage,app/vmselect}: add API to get list of existing tenants

* {app/vmstorage,app/vmselect}: add API to get list of existing tenants

* app/vmselect: fix error message

* {app/vmstorage,app/vmselect}: fix error messages

* app/vmselect: change log level for error handling

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-11-25 10:32:45 -08:00
Aliaksandr Valialkin
693d68f307
app/vmselect/vmui: make vmui-update after 37cda9abd0 2022-11-25 07:34:03 -08:00
Aliaksandr Valialkin
2f7152deb3
app/vmselect/vmui: make vmui-update after eb772aa50e 2022-11-24 17:37:33 -08:00
Aliaksandr Valialkin
587f90b4cb
app/vmselect/vmui: make vmui-update after 7dc2349913 2022-11-22 15:36:19 +02:00
Aliaksandr Valialkin
2f9df62795
app/vmselect/vmui: make vmui-update after 7d1b3e7e14 2022-11-22 00:35:05 +02:00
Aliaksandr Valialkin
ad548abd6a
app/vmselect/promql: add range_normalize(q1, ..., qN) function for normalizing query results into [0..1] value range 
This may be useful for analyzing correlation between time series with different value ranges
 2022-11-21 23:25:35 +02:00
Aliaksandr Valialkin
2d361a834d
app/vmselect/promql: properly return an empty result from limit_offset() if offset exceeds the number of inner time series 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3312
 2022-11-21 16:48:10 +02:00
Aliaksandr Valialkin
b0fefe562a
app/vmselect/promql: optimize e1 op e2 when e1 returns an empty result 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3349
 2022-11-21 16:09:49 +02:00
Aliaksandr Valialkin
353b137ff0
app/vmselect/netstorage: typo fix after 61736e4a1d 2022-11-19 00:53:54 +02:00
Aliaksandr Valialkin
97eafbe4a7
app/vmselect: clarify that it isnt recommended setting -replicationFactor at vmselect nodes even if the replication is enabled at vminsert nodes 2022-11-18 14:04:12 +02:00
Aliaksandr Valialkin
61736e4a1d
app/vmselect/netstorage: remove superflouos map lookup at ProcessSearchQuery 
This should reduce CPU usage a bit during querying
 2022-11-18 13:49:59 +02:00
Aliaksandr Valialkin
eb784ff399
app/vmselect/netstorage: emit more useful information in query traces when some of vmstorage nodes return errors or if there is no need to wait for their responses 2022-11-18 13:01:42 +02:00
Yury Molodov
60aaf4b2c2
vmui: add trace analyzer (#3310) 
* refactor: change structure project

* refactor: change structure project

* fix: add hooks for set query params

* refactor: add index for pages

* docs: add TESTCASES.md

* refactor: restructure components

* feat: add page with trace analyzer

* fix: change detect trace data

* Update app/vmui/packages/vmui/src/pages/TracePage/index.tsx

Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* Update app/vmui/packages/vmui/src/pages/TracePage/index.tsx

Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* fix: change descriptions on trace page

* Update app/vmui/packages/vmui/src/pages/TracePage/index.tsx

Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* feat: add base components

* feat: add reset styles

* docs: add description about trace analyzer

* feat: add styles for custom panel page

* feat: add styles for predefined panels

* feat: add style for TracingsView.tsx

* feat: add Alerts

* feat: add Tooltip.tsx

* fix: correct styles

* feat: add DatePicker.tsx

* feat: add tables

* feat: add theme provider

* fix: replace using callbacks as props to handlers

* fix: correct update time

* fix: change TimePicker.tsx

* fix: correct styles

* fix: update packages

* vmui: refactor code, remove material-ui

* feat: add paste json for trace analyzer

* vmui: update trace analyzer docs

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-11-17 22:23:05 +02:00
Aliaksandr Valialkin
7969ca6c80
app/vmselect/vmui: make vmui-update after 51bfd1ab80 2022-11-17 18:57:44 +02:00
Aliaksandr Valialkin
f67c2a2f8f
app/vmselect/vmui: make vmui-update after bc8a782f74 2022-11-17 01:21:56 +02:00
Aliaksandr Valialkin
0cc59b9f95
app/vmselect/promql: add range_stdvar() and range_stddev() functions for calculating variance and deviation over time series on the selected time range 2022-11-17 01:03:02 +02:00
Aliaksandr Valialkin
facf7efa3a
app/vmselect/promql: add range_linear_regression(q) function for calculating simple linear regression for the selected time series on the selected time range 2022-11-17 00:39:17 +02:00
Aliaksandr Valialkin
58e7963828
app/vmselect/vmui: make vmui-update after 7130af7fd2 2022-11-09 16:43:09 +02:00
Aliaksandr Valialkin
fe8d40f12c
app/{vminsert,vmselect}: test initialization with different number of storage nodes 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3329
 2022-11-09 11:48:39 +02:00
Zakhar Bessarab
fd36c9b3b1
docs/{vminsert,vmselect}: clarify flag description for clusternativeListenAddr (#3314) 
docs/{vminsert,vmselect}: clarify flag description for `clusternativeListenAddr`
 2022-11-04 09:49:53 +01:00
Zakhar Bessarab
7afa67dba0
{app/vmselect,app/vminsert}: ensure -storageNodes flag has no empty values (#3291) 2022-11-01 14:54:55 +02:00
Aliaksandr Valialkin
a02a5f646f
app/vmselect/vmui: make vmui-update after 54e1865d17 2022-10-28 14:52:16 +03:00
Aliaksandr Valialkin
09cf136154
app/{vminsert,vmselect}: add support for automatic discovery and update of vmstorage nodes 
Thanks to @dmitryk-dk for the initial implemenation at https://github.com/VictoriaMetrics/VictoriaMetrics-enterprise/pull/446
 2022-10-28 13:13:03 +03:00
Aliaksandr Valialkin
976bbe3677
app/{vminsert,vmselect}: limit the access to storageNodes to getStorageNodesBucket and setStorageNodesBucket functions 
This makes the code more maintainable and earier to test.
 2022-10-28 11:41:55 +03:00
Aliaksandr Valialkin
46450995ae
app/vmselect/vmui: make vmui-update after eae6063450 2022-10-26 02:51:09 +03:00
Aliaksandr Valialkin
ecb71a7221
lib/fs: add canOverwrite arg to WriteFileAtomically when it is allowed to overwrite the file atomically if it already exists 2022-10-26 01:08:35 +03:00
Aliaksandr Valialkin
4f53147ed4
app/{vminsert,vmselect}/netstorage: allow calling Init()+MustStop() in a loop 
Previously netstorage.MustStop() call didn't free up all the resources,
so the subsequent call to nestorage.Init() would panic.

This allows writing tests, which call nestorage.Init() + nestorage.MustStop() in a loop.
 2022-10-25 14:43:05 +03:00
Aliaksandr Valialkin
596251eb87
app/vmselect/vmui: make vmui-update after 274e235bf7 2022-10-24 21:29:57 +03:00
Aliaksandr Valialkin
c92aef39b5
app/vmselect/promql: expose missing metric vm_cache_size_max_bytes{type="promql/rollupResult"} 2022-10-23 12:14:07 +03:00
Aliaksandr Valialkin
574b9f4f78
app/vmselect/vmui: make vmui-update after 080562030d 2022-10-18 10:51:05 +03:00
Yury Molodov
a50f2e141c
vmui: limit number of plotted series (#3229) 
* feat: add maximum display series by tabs

* feat: add warning on PredefinedPanels.tsx

* docs/CHANGELOG.md: vmui limit number of plotted series

* docs/CHANGELOG.md: vmui limit number of plotted series

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-10-13 12:14:53 +03:00
Aliaksandr Valialkin
9bf8d64605
app/vmselect/promql: follow-up for 930f1ee153 
Document the change at docs/CHANGELOG.md
Apply it to histogram_quantile() in the same way as to histogram_share()

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3225
 2022-10-13 12:06:24 +03:00
Siqi Liu
c0fc716426
BUGFIX: properly calculate histogram_quantile with the same value and different string le (#3225) 
Co-authored-by: 647(siki.liu) <siki.liu@huolala.cn>
 2022-10-13 12:06:24 +03:00
Aliaksandr Valialkin
a0f3247b14
app/vmselect/promql: properly handle zero and negative values for -search.maxMemoryPerQuery 
This is a follow-up for 04a05f161c

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203
 2022-10-12 09:33:16 +03:00
Aliaksandr Valialkin
098c9bda27
app/vmselect: return back the logic for limits the amounts of memory occupied by concurrently executed queries if -search.maxMemoryPerQuery isn't set 
This is needed for preserving backwards compatibility with the previous releases of VictoriaMetrics.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203
 2022-10-10 21:54:18 +03:00
Aliaksandr Valialkin
d8057fca0b
docs: mention -search.maxMemoryPerQuery in the description to -search.maxConcurrentQueries command-line flag 
This is a follow-up for 5138eaeea0

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203
 2022-10-09 13:58:18 +03:00
Aliaksandr Valialkin
938ff7bba6
app/vmselect: allow limiting per-query memory usage via -search.maxMemoryPerQuery command-line flag 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203
 2022-10-08 01:14:01 +03:00
Yury Molodov
9e4e5abac6
vmui: auto-update chart after query field removed (#3210) 
* feat: run query after query field removed

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-10-07 23:08:22 +03:00
Aliaksandr Valialkin
98bd843f3c
app/{vminsert,vmselect,vmstorage}: add package-{vminsert,vmselect,vmstorage}-{goarch} Makefile rules for building arch-specific docker images 2022-10-07 20:17:01 +03:00
Aliaksandr Valialkin
58ee1b9edb
app/vmselect/vmui: make vmui-update after a54987f671 2022-10-07 03:31:00 +03:00
Aliaksandr Valialkin
b05ff477c8
app/vmselect/promql: properly calculate vm_rows_scanned_per_query histogram for rollup functions, which take into account only a few samples on the provided lookbehind window 2022-10-06 23:23:17 +03:00
Aliaksandr Valialkin
baa11a778d
app/vmselect/promql: properly calculate quantiles_over_time() over a single raw sample 2022-10-06 22:37:38 +03:00
Aliaksandr Valialkin
958c1f291c
app: follow-up after ec04fcac93 
* Optimize fast path for /api/v1/import when importing numeric values
* Move the docs about the change from features to bugfixes at docs/CHANGELOG.md
* Update tests at lib/protoparser/vmimport

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3161
 2022-10-06 14:54:15 +03:00
Dmytro Kozlov
4064db27a8
Properly parse json when export import metric (#3180) 
* app/vmselect: properly work when export import json from `api/v1/{export, import}` API

* app/vmselect: update convert function

* app/vmselect: export null if `math.IsNaN(v)`

* app/vmselect: get float from json

* lib/protoparser: add test

* docs: add change log

* lib/protoparser: make export import api compatible
 2022-10-06 14:54:14 +03:00
Aliaksandr Valialkin
43bdd96a6e
app/vmselect: improve performance scalability on multi-CPU systems for /api/v1/export/... endpoints 2022-10-01 22:16:07 +03:00
Aliaksandr Valialkin
5497997b72
app/vmselect/promql: increase scalability of incremental aggregate calculations on systems with many CPU cores 
Use sync.Map instead of a global mutex there. This should lift scalability limits
on systems with many CPU cores.
 2022-10-01 20:14:14 +03:00
Aliaksandr Valialkin
972fcfcd17
app/vmselect/prometheus: improve scalability of /federate endpoint on systems with many CPU cores 
Minimize usage of global lock inside bufferedwriter.Write() when processing `/federate` data
on systems with many CPU cores
 2022-10-01 20:14:13 +03:00
Aliaksandr Valialkin
ae6c7edf04
app/vmselect: do not export NaN values for stale metrics at /federate endpoint 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3185
 2022-10-01 19:48:21 +03:00
Aliaksandr Valialkin
6f9ce3f6d6
lib/flagutil: rename Array to ArrayString 
This makes the ArrayString more consistent with other Array* types.

While at it, add ArrayBytes type, which will be used for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3071
 2022-10-01 18:28:19 +03:00
Aliaksandr Valialkin
93e84a1c57
lib/httpserver: use 302 redirects instead of 301 redirects 
Incorrect 301 redirects can be cached by user agents such as web browsers.
This can complicate recovery procedure after the incorrect redirect is fixed,
e.g. web browser cache must be reset.

The related issue - https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1752
 2022-10-01 16:56:43 +03:00
Aliaksandr Valialkin
98175493d7
app/vmselect/promql: remove empty series before applying aggregate function 
Previously empty series (e.g. series with all NaN samples) were passed to aggregate functions.
Such series must be ingored by all the aggregate functions.
So it is better from consistency PoV filtering out empty series before applying aggregate functions.
 2022-09-30 08:44:06 +03:00
Roman Khavronenko
273472dc20
app/vmselect: ignore empty series for limit_offset (#3178) 
* app/vmselect: ignore empty series for `limit_offset`

VictoriaMetrics doesn't return empty series (with all NaN values) to
the user. But such series are filtered after transform functions.
It means `limit_offset` will account for empty series as well.

For example, let's consider following data set:
```
time series:
foo{label="1"} NaN, NaN, NaN, NaN // empty series
foo{label="2"} 1, 2, 3, 4
foo{label="3"} 4, 3, 2, 1
```

When user requests all series for metric `foo` the empty series
will be filtered out:
```
/query=foo:
foo{label="v2"} 1, 2, 3, 4
foo{label="v3"} 4, 3, 2, 1
```

But `limit_offset(1, 1, foo)` is applied to original series, not filtered yet.
So it will return `foo{label="v2"}` (skips the first in list)
```
/query=limit_offset(1, 1, foo):
foo{label="v2"} 1, 2, 3, 4
```

Expected result would be to apply `limit_offset` to already filtered list,
so in result we receive `foo{label="v3"}`:
```
/query=limit_offset(1, 1, foo):
foo{label="v3"} 4, 3, 2, 1
```

The change does exactly that - filters empty series before applying `limit_offset`.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

* app/vmselect: ignore empty series for `limit_offset`

Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
 2022-09-30 08:44:05 +03:00
Roman Khavronenko
4acbf6e7d4
vmselect/rollup: rm workaround for slow-changing counters (#3163) 
The workaround was introduced to fix https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962.
However, it didn't prove itself useful. Instead, it is recommended using `increase_pure` function.

Removing the workaround makes VM to produce accurate results when calculating
`delta` or `increase` functions over slow-changing counters with vary intervals
between data points.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
 2022-09-26 15:39:49 +03:00
Dmytro Kozlov
36ea8537d9
vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric) (#2982) 
* vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric)

* vmselect/promql: fix tests, add documentation

* vmselect/promql: update test

* vmselect/promql: update for alphanumeric sorting, fix tests

* vmselect/promql: remove comments

* vmselect/promql: cleanup

* vmselect/promql: avoid memory allocations, update functions descriptions

* vmselect/promql: make linter happy (remove ineffectual assigment)

* vmselect/promql: add test case, fix behavior when strings are equal

* vendor: update github.com/VictoriaMetrics/metricsql from v0.44.1 to v0.45.0

this adds support for sort_by_label_numeric and sort_by_label_numeric_desc functions

* wip

* lib/promscrape: read response body into memory in stream parsing mode before parsing it

This reduces scrape duration for targets returning big responses.

The response body was already read into memory in stream parsing mode before this change,
so this commit shouldn't increase memory usage.

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-09-14 17:42:07 +03:00
Aliaksandr Valialkin
b6bdbb4787
app/vmselect/vmui: make vmui-update after 1304824201 2022-09-14 13:32:43 +03:00
Yury Molodov
465894d720
vmui: fix data processing (#3092) 
* fix: change data processing

* app/vmselect/vmui: `make vmui-update`

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-09-12 10:56:39 +03:00
Yury Molodov
c8de98e03f
vmui: add lists of top queries (#3065) 
* feat: add lists of top queries

* fix: change the field label

* refactor: add handlers for readability

* app/vmselect: `make vmui-update`

* docs: document `top queries` tab

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-09-08 21:44:43 +03:00
Dmytro Kozlov
ec273eafef
app/{vmselect, vminsert}: fails with error when user defines equal addresses in the -storageNodes flag (#3082) 2022-09-08 21:17:58 +03:00
Aliaksandr Valialkin
f0eea5b02d
app/vmselect/netstorage: fix a typo, which leads to incorrect query results in VictoriaMetrics cluster 
The typo has been introduced in the commit 1a254ea20c

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3067
 2022-09-08 13:46:40 +03:00
Dmytro Kozlov
96ecec877d
vmselect/{promql, prometheus}: show flag names which user can update in error message (#3049) 
* vmselect/{promql, prometheus}: show flag names which user can update in error message

* vmselect/{promql, prometheus}: fix typo
 2022-09-06 14:48:20 +03:00