Aliaksandr Valialkin
89b778902b
app/vmselect: add optional limit query arg to /api/v1/labels and /api/v1/label_values endpoints
...
This arg allows limiting the number of sample values returned from these APIs
2022-06-10 09:50:33 +03:00
Aliaksandr Valialkin
12ac255dae
lib/querytracer: make it easier to use by passing trace context message to New and NewChild
...
The context message can be extended by calling Donef.
If there is no need to extend the message, then just call Done.
2022-06-08 21:06:52 +03:00
Aliaksandr Valialkin
a072a061a2
docs/Single-server-VictoriaMetrics.md: explain why free disk space shortage may negatively impact VictoriaMetrics performance
2022-06-08 20:03:53 +03:00
Aliaksandr Valialkin
8888e2b955
docs: add a link to cardinality explorer playground
2022-06-08 19:39:36 +03:00
Aliaksandr Valialkin
2c2418d079
docs: refer to cardinality explorer
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2233
2022-06-08 19:17:41 +03:00
Aliaksandr Valialkin
194258c7b4
docs: run make docs-sync after fda8da297e
2022-06-07 14:50:39 +03:00
Dmytro Kozlov
fda8da297e
docs: fixed typos ( #2680 )
...
* docs: fixed typos
* Update README.md
* Update docs/README.md
* Update docs/Single-server-VictoriaMetrics.md
* docs: added examples with start and end params in request
* Apply suggestions from code review
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-06-07 14:47:15 +03:00
Aliaksandr Valialkin
f04b997a3d
docs: run make docs-sync after a439e887a3
2022-06-07 14:26:56 +03:00
Aliaksandr Valialkin
3aee7751b3
docs/Single-server-VictoriaMetrics.md: small clarification about custom cache size tuning
2022-06-01 14:55:54 +03:00
Roman Khavronenko
642eb1c534
lib/storage: make indexdb/tagFilters cache size configurable ( #2667 )
...
The default size of `indexdb/tagFilters` now can be overridden via
`storage.cacheSizeIndexDBTagFilters` flag.
Please, be careful with changing default size since it may
lead to inefficient work of the vmstorage or OOM exceptions.
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2663
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2022-06-01 10:07:53 +02:00
Aliaksandr Valialkin
41958ed5dd
all: add initial support for query tracing
...
See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
2022-06-01 02:29:23 +03:00
Roman Khavronenko
1e15ff5320
docs: update single version docs by adding extra links and formatting ( #2643 )
...
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-05-25 21:49:43 +02:00
Aliaksandr Valialkin
1e745416aa
docs/Single-server-VictoriaMetrics.md: mention Cardinality limiter docs at Resource usage limits section
2022-05-23 10:51:50 +03:00
Aliaksandr Valialkin
1731fe2ada
docs: update the description for command-line flags according to recent changes
2022-05-20 15:09:43 +03:00
Yurii Kravets
20cef877a1
Update docs ( #2566 )
...
* deployment/docker: pass `-buildvs=false` to `go build` for production builds
This should resolve the `error obtaining VCS status: exit status 128` error
when the environment contains incorrect version of git or has incorrect access rights
to the directory with VictoriaMetrics source code.
See the following links for additional info:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2508#issuecomment-1117126702 ,
- https://github.com/google/ko/issues/672
- https://github.com/golang/go/issues/49004
* lib/netutil: limit the number of concurrently established connections when calling ConnPool.Get()
This should reduce potential spikes in the number of established connections in the following cases:
- when the connection establishing procedure becomes temporarily slow
- after a temporary spike in the rate of ConnPool.Get() calls
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2552
* docs/CHANGELOG.md: document c8af625bcchttps://github.com/VictoriaMetrics/VictoriaMetrics/issues/1322#issuecomment-1120276146
* docs/Cluster-VictoriaMetrics.md: typo fix: `by by` -> `by`
* docs: add `resource usage limits` docs, which describe fine-grained tuning for various resource usage limits
* docs/Cluster-VictoriaMetrics.md: the `/api/v1/label/.../values` query can take CPU and ram at both vmstorage and vmselect
* Update root Readme and root vmagent readme
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-05-12 19:22:13 +02:00
Aliaksandr Valialkin
a0727ab1b1
docs/vmagent.md: typo fix in the description for -promscrape.cluster.replicationFactor command-line flag
2022-05-12 18:50:29 +03:00
Aliaksandr Valialkin
73cbc87dbb
docs: add resource usage limits docs, which describe fine-grained tuning for various resource usage limits
2022-05-11 19:52:03 +03:00
Aliaksandr Valialkin
2e6827ff04
docs/CHANGELOG.md: document 8639e79d38
2022-05-04 10:46:03 +03:00
Aliaksandr Valialkin
0d86644d65
lib/storage: leave the last sample per each discrete interval during the deduplicaton
...
This aligns better with staleness logic in Prometheus - https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness
2022-05-02 21:50:45 +03:00
Aliaksandr Valialkin
a186434b50
app/vmui: execute query by pressing enter in the same way as Prometheus does
...
Multi-line query can be entered via `shift-enter` in the query input field
2022-05-02 19:49:29 +03:00
Aliaksandr Valialkin
912a5a6f28
docs/Single-server-VictoriaMetrics.md: refer to the docs on how to set up multiple vmagent instances for scraping the same set of targets
2022-04-21 15:51:52 +03:00
Aliaksandr Valialkin
f6d0e5e74a
all: typo fix: Kuberntes -> Kubernetes
2022-04-20 10:50:49 +03:00
Aliaksandr Valialkin
1097ebebe6
lib/httpserver: clarify that -tls flag enables TLS for http requests to -httpListenAddr
2022-04-16 16:59:26 +03:00
Aliaksandr Valialkin
b49b8020d6
docs: sync docs with the latest changes
2022-04-16 15:59:53 +03:00
Aliaksandr Valialkin
7e4bdf31ba
lib/httpserver: follow up after def0032c7d
2022-04-16 15:27:21 +03:00
Aliaksandr Valialkin
e27dac25b9
docs/Single-server-VictoriaMetrics.md: clarify that ingestion protocol means data ingestion protocol
2022-04-11 12:57:26 +03:00
Aliaksandr Valialkin
3121085e8f
docs/Single-server-VictoriaMetrics.md: mention that VictoriaMetrics supports data ingestion in Graphite protocol at Graphite API usage chapter
2022-04-10 16:20:41 +03:00
Aliaksandr Valialkin
6e364e19ef
app/vmselect: add fine-grained limits for the number of returned/scanned time series for various APIs
2022-03-26 11:29:49 +02:00
Aliaksandr Valialkin
f8dfc22350
docs: a follow-up after 76a477c609
2022-03-23 19:39:08 +02:00
Yurii Kravets
76a477c609
Update Single-server-VictoriaMetrics.md ( #2357 )
...
* Update Single-server-VictoriaMetrics.md
Adding /federate link
* Apply suggestions from code review
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-03-23 19:37:23 +02:00
Arash Hatami
a8de1ab000
A good change for MD files ( #2353 )
...
* Lint YAML
* Remove extra comment
* Fix command problem
* Format MD files
* Format & fix problem of MD files for docs
* Another fix for MD files
2022-03-22 13:40:55 +02:00
Roman Khavronenko
0fa7effc4b
docs: fix broken links ( #2303 )
...
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-03-13 15:56:01 +02:00
Aliaksandr Valialkin
7717967d42
docs: make docs-sync after 702aa4948b
2022-03-03 18:34:06 +02:00
Aliaksandr Valialkin
979d89f5dd
app/vmagent: add -influxDBLabel in the same way as for app/vminsert
...
This is a follow-up for 3d19fa6932
2022-02-21 14:09:20 +02:00
Roman Khavronenko
b6ed9afd6d
lib: allow to configure cache size by type ( #2206 )
...
* lib: allow to configure cache size by type
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1940
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* Apply suggestions from code review
* wip
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-21 13:50:34 +02:00
Aliaksandr Valialkin
debe75f51c
docs: make docs-sync
2022-02-18 12:24:49 +02:00
Roman Khavronenko
3ac3124eed
docs: make profiling commands more copy-friendly ( #2213 )
...
* docs: make profiling commands more copy-friendly
The change adds `copy text` snippet to code examples
and replaces hostname placeholders with `0.0.0.0`.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* Apply suggestions from code review
* Apply suggestions from code review
* Apply suggestions from code review
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-18 12:23:36 +02:00
Aliaksandr Valialkin
3c3805865b
docs: document 3d19fa6932
2022-02-16 23:30:17 +02:00
Aliaksandr Valialkin
21c92d7ef1
docs/Single-server-VictoriaMetrics.md: mention that VictoriaMetrics doesnt check DD_API_KEY when accepting data via DataDog protocol
2022-02-16 14:38:00 +02:00
匠心零度
88a2659f1a
Correct URL:How to delete time series ( #2201 )
...
Co-authored-by: lirenzuo <lirenzuo@shein.com>
2022-02-16 08:32:57 +02:00
Aliaksandr Valialkin
55facde841
docs/Single-server-VictoriaMetrics.md: clarify that the data is imported into VictoriaMetrics at how to import data section
2022-02-15 21:08:22 +02:00
Aliaksandr Valialkin
ee5da826e9
docs: update -help output for VictoriaMetrics components
2022-02-15 21:08:22 +02:00
Roman Khavronenko
e855b202df
docs: add Storage section to docs ( #2155 )
...
* docs: add Storage section to docs
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2151
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* Apply suggestions from code review
* docs: `make docs-sync`
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-08 15:59:17 +02:00
Aliaksandr Valialkin
9bb60ab00f
lib/promscrape: set -promscrape.config.strictParse to true by default
...
This allows detecting long-living silent errors in -promscrape.config
2022-02-08 15:41:43 +02:00
Aliaksandr Valialkin
de26d1ff23
docs/Single-server-VictoriaMetrics.md: add a link to exlanation on how downsampling works
2022-02-08 15:10:41 +02:00
Aliaksandr Valialkin
baab622db6
docs: fix links to FAQ.md entries after they have been changed in ccf04239e6
2022-02-07 16:02:44 +02:00
Aliaksandr Valialkin
ba1b3b8ef2
docs: cross-link downsampling docs from deduplication and vmalert docs
2022-02-04 11:57:05 +02:00
Aliaksandr Valialkin
eb4bd92fac
all: update link to EULA from https://victoriametrics.com/assets/VM_EULA.pdf to https://victoriametrics.com/legal/eula/
2022-01-20 22:23:27 +02:00
Oct
ccf04239e6
docs: Correct some urls in the docs ( #2081 )
...
* docs:update Swift S3 api url
* docs/vmbackup.md: update Swift S3 api url
* docs: update KairosDB docs url
* docs: update thanos docs url
2022-01-19 11:55:30 +02:00
Roman Khavronenko
0b0bf94c96
docs: update retention docs with additional details ( #2060 )
...
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-01-18 22:25:48 +02:00
Aliaksandr Valialkin
c70c064752
docs: follow-up after ae89b4e818
2022-01-05 16:31:45 +02:00
Yurii Kravets
f0c331c724
Update README.md ( #1996 )
...
* Update README.md
go 1.16 -> 1.17
* Update README.md
* Update README.md
* Update Cluster-VictoriaMetrics.md
* Update Single-server-VictoriaMetrics.md
* Update vmauth.md
* Update vmbackup.md
* Update vmrestore.md
* Update vmagent.md
* Update vmctl.md
* Update README.md
* Update README.md
* Update README.md
* Update README.md
* Update README.md
2021-12-23 12:09:59 +02:00
Aliaksandr Valialkin
ee17516afd
docs/Single-server-VictoriaMetrics.md: mention that recording rules in vmalert can be used for reducing the number of time series
2021-12-20 20:03:42 +02:00
Aliaksandr Valialkin
ad388ecd78
docs: mention that downsampling can be evaluated for free by running enterprise binaries
2021-12-20 15:57:25 +02:00
Aliaksandr Valialkin
193331d522
app/vmselect: de-duplicate data exported via /api/v1/export/csv by default
...
Previously the exported data wasn't de-duplicated.
Now it is possible to export the raw data without deduplication
by passing reduce_mem_usage=1 query arg to /api/v1/export/csv
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1837
2021-12-17 10:57:39 +02:00
Roman Khavronenko
f30ed13155
docs: add Benchmarks section ( #1950 )
...
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-12-16 19:15:19 +03:00
Aliaksandr Valialkin
27a1ae57e5
docs: mention -storage.minFreeDiskSpaceBytes command-line flag at capacity planning section
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1727 and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
2021-12-15 21:41:30 +02:00
Aliaksandr Valialkin
8e1a87491a
docs: document the added dowsnampling support in VictoriaMetrics enterprise
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/36
2021-12-15 16:25:51 +02:00
Aliaksandr Valialkin
acd56603b0
app/victoria-metrics: mention https://docs.victoriametrics.com/#downsampling in the description for -dedup.minScrapeInterval command-line flag
2021-12-15 13:18:04 +02:00
Aliaksandr Valialkin
e1a715b0f5
lib/storage: convert alternate regexps into Graphite wildcards inside __graphite__ pseudo-label
...
For example, `{__graphite__=~"foo.(bar|baz)"}` is automatically converted to `{__graphite__=~"foo.{bar,baz}"}` before execution.
This allows using multi-value Grafana template variables such as `{__graphite__=~"foo.($app)"}`.
2021-12-14 19:51:49 +02:00
Yury Molodov
49e6a921df
vmui: custom step ( #1942 )
...
* feat: add a label for the Query field
* fix: change zoom position
* fix: add description and error code to alerts
* fix: correct logic query history
* fix: correct update query history
* feat: add custom step
* update package-lock.json
* docs: document that VMUI now supports overriding of `step` query arg, which is passed to `/api/v1/query_range`
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-12-14 14:51:45 +02:00
Aliaksandr Valialkin
0a157f65bd
docs/Single-server-VictoriaMetrics.md: added a link to Graphite paths and wildcards - https://graphite.readthedocs.io/en/latest/render_api.html#paths-and-wildcards
2021-12-13 12:01:17 +02:00
Aliaksandr Valialkin
b42981c465
docs/Single-server-VictoriaMetrics.md: add a link to https://github.com/denisgolius/victoriametrics-ru-links
2021-12-09 19:42:27 +02:00
Aliaksandr Valialkin
52eb9c99e2
docs: document the ability to investigate correlation between two queries at /vmui
...
This is a follow-up for c1fd93e8a0
2021-12-08 17:24:01 +02:00
Yury Molodov
c1fd93e8a0
vmui: multiple queries ( #1916 )
...
* feat: change duration by "enter"
* fix: optimize data processing for chart
* feat: set minimum step to 1ms
* update dependencies
* feat: remove save the last query to local storage
* fix: handle an error in a table with subqueries
* feat: store display type in URL
* Revert "feat: store display type in URL"
This reverts commit ccc242c69a
2021-12-08 16:40:15 +02:00
Aliaksandr Valialkin
0288078cfb
docs/Single-server-VictoriaMetrics.md: add LinkedIn public channel
2021-12-08 13:15:24 +02:00
Aliaksandr Valialkin
2711d2ea55
docs/Single-server-VictoriaMetrics.md: move features chapter above the case studies chapter
2021-12-08 12:49:09 +02:00
Aliaksandr Valialkin
ff15a752c1
app/vmselect: accept optional extra_filters[] query args for all the supported Prometheus querying APIs
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1863
2021-12-06 17:07:09 +02:00
Aliaksandr Valialkin
45d082bbe2
app/vminsert: add -maxLabelValueLen command-line flag
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1908
2021-12-06 11:40:34 +02:00
Aliaksandr Valialkin
06642d97f5
app: allow specifying http and https urls in the following command-line flags
...
* -promscrape.config
* -relabelConfig
* -remoteWrite.relabelConfig
* -remoteWrite.urlRelabelConfig
2021-12-03 00:10:02 +02:00
Aliaksandr Valialkin
2c41f25fb8
README.md: add a link to https://docs.victoriametrics.com/guides/guide-vmcluster-multiple-retention-setup.html for multi-retention setups
2021-12-01 12:48:30 +02:00
Aliaksandr Valialkin
f06495c50a
docs/Single-server-VictoriaMetrics.md: document that the deduplication is applied only when exporting data in JSON line format
...
The exported data isn't de-duplicated by default due to performance reasons.
It is expected that the de-duplication is applied during importing the exported data.
The deduplication is applied only when exporting data via /api/v1/export if `reduce_mem_usage=1` query arg isn't passed to the request.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1837
2021-11-30 13:06:06 +02:00
Aliaksandr Valialkin
7fda5d52ae
docs/Single-server-VictoriaMetrics.md: add a link to vmalert rules backfilling at Backfilling chapter
2021-11-17 00:23:23 +02:00
Aliaksandr Valialkin
e2f823fffc
docs/Single-server-VictoriaMetrics.md: mention that it is possible to send gzipped data to /api/v1/import/prometheus
2021-11-09 20:45:14 +02:00
Aliaksandr Valialkin
a67518fc6d
docs: mention that graphs on the official dashboards contain useful hints
2021-11-08 19:54:10 +02:00
Roman Khavronenko
1e84339df0
docs: make link to logos zip absolute ( #1782 )
...
The relative link won't work for github-docs website,
so we're changing it to absolute link.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-11-04 11:32:49 +02:00
Aliaksandr Valialkin
aa534c2582
lib/promscrape: add -promscrape.maxResponseHeadersSize command-line flag for tuning the maximum http response headers size from Prometheus scrape targets
2021-11-03 22:26:56 +02:00
Aliaksandr Valialkin
43a58bd618
app/vmselect/promql: add label_graphite_group() function for extracting groups from Graphite metric names
2021-11-03 13:19:08 +02:00
Aliaksandr Valialkin
d1eb87c831
app/{vmagent,vminsert}: add ability to restrict access to /config page with authKey query arg
...
The authKey can be configured via `-configAuthKey` command-line flag.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1764
2021-11-01 16:44:54 +02:00
Aliaksandr Valialkin
2876137c92
lib/promscrape: reduce memory usage if -promscrape.noStaleMarkers command-line flag is passed
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Do not store in memory the response from the last scrape per each target if -promscrape.noStaleMarkers option is enabled.
This should reduce memory usage when the scraped targets return large responses.
2021-10-22 13:10:29 +03:00
Yury Molodov
2b266cb87e
vmui: query history ( #1732 )
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* feat: add query history
* fix: change detect keyUp for nav query history
* feat: set default query history
* app/vmselect/vmui: `make vmui-update`
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-10-22 12:21:22 +03:00
Aliaksandr Valialkin
35a5eaeeb1
docs/Single-server-VictoriaMetrics.md: add a link to VMUI at VictoriaMetrics playground
2021-10-19 14:41:53 +03:00
Aliaksandr Valialkin
dfc719e012
docs/CaseStudies.md: add Smarkets case study
2021-10-16 19:57:23 +03:00
Aliaksandr Valialkin
a1e54fa2c9
docs/CaseStudies.md: add Fly.io case study
2021-10-16 19:45:44 +03:00
Aliaksandr Valialkin
47c6baf5ea
docs/CaseStudies.md: add a case study for Razorpay
2021-10-16 19:36:33 +03:00
Aliaksandr Valialkin
3e9ffb6e33
docs/CaseStudies.md: add AbiosGaming
2021-10-16 19:26:04 +03:00
Aliaksandr Valialkin
ede9dd43e8
docs/CaseStudies.md: add Percona case study
2021-10-16 19:10:38 +03:00
Aliaksandr Valialkin
bbd34fa15e
lib/promscrape: add -promscrape.minResponseSizeForStreamParse command-line option for automatic switching to stream parsing mode when scraping targets with big responses
...
This should reduce memory usage when vmagent scrapes targets with non-uniform response sizes.
This is common case in Kubernetes monitoring.
2021-10-14 12:29:35 +03:00
Aliaksandr Valialkin
0ff8fcac6a
app/vmui: follow-up after 7bfb44113e
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* Run `vmui-update`
* Document the changes in README.md and CHANGELOG.md
2021-10-08 15:09:29 +03:00
Ziqi Zhao
402c995d6d
fix some typos ( #1678 )
...
Co-authored-by: 柘远 <zzq237937@alibaba-inc.com>
2021-10-06 14:43:10 +03:00
Aliaksandr Valialkin
91b3c601bc
app/{vminsert,vmagent}: add ability to ingest data via DataDog "submit metrics" API
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See https://docs.datadoghq.com/api/latest/metrics/#submit-metrics
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/206
2021-09-29 00:13:08 +03:00
Aliaksandr Valialkin
d5c2741e8f
docs/CaseStudies.md: add a case study for Grammarly
2021-09-23 13:11:48 +03:00
Aliaksandr Valialkin
a22aa0608b
app/vmselect: fix accessing /graphite/* endpoints
2021-09-21 13:56:35 +03:00
Aliaksandr Valialkin
e46bd9e47f
docs/Single-server-VictoriaMetrics.md: link to cardinality limiter docs in vmagent
2021-09-13 21:26:59 +03:00
Aliaksandr Valialkin
7f0a8d4bdb
docs: consistency renaming: Influx -> InfluxDB
2021-09-13 17:05:16 +03:00
Aliaksandr Valialkin
674a6eee6c
docs/Single-server-VictoriaMetrics.md: refer to relabeling section for vmagent
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This removes duplicate docs about additional relabeling actions supported by VictoriaMetrics components
2021-09-12 11:39:19 +03:00
Aliaksandr Valialkin
ef27786e37
docs/Single-server-VictoriaMetrics.md: fix a link multitenancy docs for cluster version in VictoriaMetrics
2021-09-02 17:43:35 +03:00
Aliaksandr Valialkin
ed818fceef
docs: update -help output for victoria-metrics and vmagent after f77dde837a
2021-09-01 16:34:32 +03:00
Aliaksandr Valialkin
6e085e6dac
docs/Single-server-VictoriaMetrics.md: remove outdated link to VictoriaMetrics wiki
...
VictoriaMetrics wiki became outdated after publishing all the docs at https://docs.victoriametrics.com
2021-08-31 11:48:32 +03:00
Aliaksandr Valialkin
189507d9d0
docs/Single-server-VictoriaMetrics.md: mention that downsampling doesnt improve query performance on high churn rate
2021-08-27 18:50:26 +03:00
