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docs: add a link to cardinality explorer playground

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Aliaksandr Valialkin 2022-06-08 19:39:36 +03:00
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docs/CHANGELOG.md
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@ -18,7 +18,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
**Update notes:** this release introduces backwards-incompatible changes to communication protocol between `vmselect` and `vmstorage` nodes in cluster version of VictoriaMetrics because of added [query tracing](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing), so `vmselect` and `vmstorage` nodes may log communication errors during the upgrade. These errors should stop after all the `vmselect` and `vmstorage` nodes are updated to new release. It is safe to downgrade to previous releases.
* FEATURE: support query tracing, which allows determining bottlenecks during query processing. See [these docs](https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403).
* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): add `cardinality` tab, which can help identifying the source of [high cardinality](https://docs.victoriametrics.com/FAQ.html#what-is-high-cardinality) and [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate) issues. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2233).
* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): add `cardinality` tab, which can help identifying the source of [high cardinality](https://docs.victoriametrics.com/FAQ.html#what-is-high-cardinality) and [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate) issues. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2233) and [these docs](https://docs.victoriametrics.com/#cardinality-explorer).
* FEATURE: allow overriding default limits for in-memory cache `indexdb/tagFilters` via flag `-storage.cacheSizeIndexDBTagFilters`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2663).
* FEATURE: add support of `lowercase` and `uppercase` relabeling actions in the same way as [Prometheus 2.36.0 does](https://github.com/prometheus/prometheus/releases/tag/v2.36.0). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2664).
* FEATURE: add ability to change the `indexdb` rotation timezone offset via `-retentionTimezoneOffset` command-line flag. Previously it was performed at 4am UTC time. This could lead to performance degradation in the middle of the day when VictoriaMetrics runs in time zones located too far from UTC. Thanks to @cnych for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2574).

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docs/README.md
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@ -277,6 +277,8 @@ matching the specified [series selector](https://prometheus.io/docs/prometheus/l
Cardinality explorer is built on top of [/api/v1/status/tsdb](#tsdb-stats).
See [cardinality explorer playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/prometheus/graph/#/cardinality).
## How to apply new config to VictoriaMetrics

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docs/Single-server-VictoriaMetrics.md
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@ -281,6 +281,8 @@ matching the specified [series selector](https://prometheus.io/docs/prometheus/l
Cardinality explorer is built on top of [/api/v1/status/tsdb](#tsdb-stats).
See [cardinality explorer playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/prometheus/graph/#/cardinality).
## How to apply new config to VictoriaMetrics