diff options
| author | Joel Hans <joel@netdata.cloud> | 2020-08-26 07:21:29 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-26 07:21:29 -0700 |
| commit | a305ee79d6342b8ece27bf0b43f8d88025769353 (patch) | |
| tree | e2c424327aa7fc81d3663b2d192c57cea8fcb080 /docs/guides | |
| parent | ab7ff3131f3698710e0bd9fa3c66d31a3a194725 (diff) | |
Improve dbengine docs and add new multihost setting (#9817)
* Clean up dbengine doc and metrics guide
* Tweaks to the text
* Fixes for Markos
Diffstat (limited to 'docs/guides')
| -rw-r--r-- | docs/guides/longer-metrics-storage.md | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/docs/guides/longer-metrics-storage.md b/docs/guides/longer-metrics-storage.md index 328b724019..5bf335c5cd 100644 --- a/docs/guides/longer-metrics-storage.md +++ b/docs/guides/longer-metrics-storage.md @@ -43,21 +43,22 @@ When the Netdata dashboard queries for historical metrics, the database engine w return relevant metrics for visualization in charts. Now, given that the database engine uses _both_ RAM and disk, there are two other settings to consider: `page cache -size` and `dbengine disk space`. +size` and `dbengine multihost disk space`. ```conf [global] page cache size = 32 - dbengine disk space = 256 + dbengine multihost disk space = 256 ``` `page cache size` sets the maximum amount of RAM (in MiB) the database engine will use for caching and indexing. -`dbengine disk space` sets the maximum disk space (again, in MiB) the database engine will use for storing compressed -metrics. The default settings retain about two day's worth of metris on a system collecting 2,000 metrics every second. +`dbengine multihost disk space` sets the maximum disk space (again, in MiB) the database engine will use for storing +compressed metrics. The default settings retain about two day's worth of metris on a system collecting 2,000 metrics +every second. [**See our database engine calculator**](https://learn.netdata.cloud/docs/agent/database/calculator) to help you -correctly set `dbengine disk space` based on your needs. The calculator gives an accurate estimate based on how many -child nodes you have, how many metrics your Agent collects, and more. +correctly set `dbengine multihost disk space` based on your needs. The calculator gives an accurate estimate based on +how many child nodes you have, how many metrics your Agent collects, and more. With the database engine active, you can back up your `/var/cache/netdata/dbengine/` folder to another location for redundancy. |