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check-health: monitor free RAM

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---- ✂️ ----
🗃️📉️ Health warning: free RAM

The available free RAM on MikroTik is at 18% (47MiB)!
---- ✂️ ----
🗃️📈️ Health recovery: free RAM

The available free RAM on MikroTik increased to 65% (168MiB).
---- ✂️ ----
This commit is contained in:
Christian Hesse 2023-01-20 14:34:18 +01:00
parent 75bd14267e
commit 6780e1a24c
10 changed files with 36 additions and 8 deletions
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21
doc/check-health.md
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@ -13,14 +13,16 @@ This script is run from scheduler periodically, sending notification on
health related events:
* high CPU load
* low available free RAM
* voltage jumps up or down more than configured threshold or drops below limit
* power supply failed or recovered
* temperature is above or below threshold
Note that bad initial state will not trigger an event.
Monitoring CPU load works on all devices. Other than that only sensors
available in hardware can be checked. See what your hardware supports:
Monitoring CPU load and available free RAM works on all devices. Other
than that only sensors available in hardware can be checked. See what your
hardware supports:
/system/health/print;
@ -31,19 +33,24 @@ available in hardware can be checked. See what your hardware supports:
![check-health notification cpu load high](check-health.d/notification-01-cpu-load-high.avif)
![check-health notification cpu load ok](check-health.d/notification-02-cpu-load-ok.avif)
#### Available free RAM
![check-health notification free ram low](check-health.d/notification-03-free-ram-low.avif)
![check-health notification free ram ok](check-health.d/notification-04-free-ram-ok.avif)
#### Voltage
![check-health notification voltage](check-health.d/notification-03-voltage.avif)
![check-health notification voltage](check-health.d/notification-05-voltage.avif)
#### Temperature
![check-health notification temperature high](check-health.d/notification-04-temperature-high.avif)
![check-health notification temperature ok](check-health.d/notification-05-temperature-ok.avif)
![check-health notification temperature high](check-health.d/notification-06-temperature-high.avif)
![check-health notification temperature ok](check-health.d/notification-07-temperature-ok.avif)
#### PSU state
![check-health notification psu fail](check-health.d/notification-06-psu-fail.avif)
![check-health notification psu ok](check-health.d/notification-07-psu-ok.avif)
![check-health notification psu fail](check-health.d/notification-08-psu-fail.avif)
![check-health notification psu ok](check-health.d/notification-09-psu-ok.avif)
Requirements and installation
-----------------------------