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| author | Chris Akritidis <43294513+cakrit@users.noreply.github.com> | 2022-12-20 13:07:25 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-20 13:07:25 +0200 |
| commit | 0804995b0e45575411c860d243ded865cfbb1a16 (patch) | |
| tree | 0126db3ab4ca8ad32828f747eced535de834adc7 | |
| parent | 4d0a79522b4003b0362a35293550483e193afe14 (diff) | |
Document memory mode alloc (#14142)
| -rw-r--r-- | daemon/config/README.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/daemon/config/README.md b/daemon/config/README.md index 376aae0a5f..adccca3c38 100644 --- a/daemon/config/README.md +++ b/daemon/config/README.md @@ -84,7 +84,7 @@ Please note that your data history will be lost if you have modified `history` p | setting | default | info | |:---------------------------------------------:|:----------:|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| -| mode | `dbengine` | `dbengine`: The default for long-term metrics storage with efficient RAM and disk usage. Can be extended with `dbengine page cache size MB` and `dbengine disk space MB`. <br />`save`: Netdata will save its round robin database on exit and load it on startup. <br />`map`: Cache files will be updated in real-time. Not ideal for systems with high load or slow disks (check `man mmap`). <br />`ram`: The round-robin database will be temporary and it will be lost when Netdata exits. <br />`none`: Disables the database at this host, and disables health monitoring entirely, as that requires a database of metrics. | +| mode | `dbengine` | `dbengine`: The default for long-term metrics storage with efficient RAM and disk usage. Can be extended with `dbengine page cache size MB` and `dbengine disk space MB`. <br />`save`: Netdata will save its round robin database on exit and load it on startup. <br />`map`: Cache files will be updated in real-time. Not ideal for systems with high load or slow disks (check `man mmap`). <br />`ram`: The round-robin database will be temporary and it will be lost when Netdata exits. <br />`alloc`: Similar to `ram`, but can significantly reduce memory usage, when combined with a low retention and does not support KSM. <br />`none`: Disables the database at this host, and disables health monitoring entirely, as that requires a database of metrics. Not to be used together with streaming. | | retention | `3600` | Used with `mode = save/map/ram/alloc`, not the default `mode = dbengine`. This number reflects the number of entries the `netdata` daemon will by default keep in memory for each chart dimension. Check [Memory Requirements](/database/README.md) for more information. | | storage tiers | `1` | The number of storage tiers you want to have in your dbengine. Check the tiering mechanism in the [dbengine's reference](/database/engine/README.md#tiering). You can have up to 5 tiers of data (including the _Tier 0_). This number ranges between 1 and 5. | | dbengine page cache size MB | `32` | Determines the amount of RAM in MiB that is dedicated to caching for _Tier 0_ Netdata metric values. | |