From 996c3b09570b5365a4dbd9b990bdda3290eb978e Mon Sep 17 00:00:00 2001 From: Aliaksandr Valialkin Date: Mon, 20 Dec 2021 15:57:25 +0200 Subject: [PATCH] docs: mention that downsampling can be evaluated for free by running enterprise binaries --- docs/README.md | 4 +++- docs/Single-server-VictoriaMetrics.md | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/docs/README.md b/docs/README.md index 5a444567cc..8d7e7d558d 100644 --- a/docs/README.md +++ b/docs/README.md @@ -1177,7 +1177,9 @@ See [these docs](https://docs.victoriametrics.com/guides/guide-vmcluster-multipl * `-downsampling.period=30d:5m,180d:1h` instructs VictoriaMetrics to deduplicate samples older than 30 days with 5 minutes interval and to deduplicate samples older than 180 days with 1 hour interval. -Downsampling is applied independently per each time series. It can reduce disk space usage and improve query performance if it is applied to time series with big number of samples per each series. The downsampling doesn't improve query performance if the database contains big number of time series with small number of samples per each series (aka [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)), since downsamlping doesn't reduce the number of time series. So the majority of time is spent on searching for the matching time series. +Downsampling is applied independently per each time series. It can reduce disk space usage and improve query performance if it is applied to time series with big number of samples per each series. The downsampling doesn't improve query performance if the database contains big number of time series with small number of samples per each series (aka [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)), since downsampling doesn't reduce the number of time series. So the majority of time is spent on searching for the matching time series. + +The downsampling can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases). ## Multi-tenancy diff --git a/docs/Single-server-VictoriaMetrics.md b/docs/Single-server-VictoriaMetrics.md index 148728d921..0c71fcd56c 100644 --- a/docs/Single-server-VictoriaMetrics.md +++ b/docs/Single-server-VictoriaMetrics.md @@ -1181,7 +1181,9 @@ See [these docs](https://docs.victoriametrics.com/guides/guide-vmcluster-multipl * `-downsampling.period=30d:5m,180d:1h` instructs VictoriaMetrics to deduplicate samples older than 30 days with 5 minutes interval and to deduplicate samples older than 180 days with 1 hour interval. -Downsampling is applied independently per each time series. It can reduce disk space usage and improve query performance if it is applied to time series with big number of samples per each series. The downsampling doesn't improve query performance if the database contains big number of time series with small number of samples per each series (aka [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)), since downsamlping doesn't reduce the number of time series. So the majority of time is spent on searching for the matching time series. +Downsampling is applied independently per each time series. It can reduce disk space usage and improve query performance if it is applied to time series with big number of samples per each series. The downsampling doesn't improve query performance if the database contains big number of time series with small number of samples per each series (aka [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)), since downsampling doesn't reduce the number of time series. So the majority of time is spent on searching for the matching time series. + +The downsampling can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases). ## Multi-tenancy