ston1th/node_exporter
0
0
Fork 0
Code Issues Releases Activity

docs/node-mixin: Improve memory pressure rule

Browse source 
The `instance:node_memory_swap_io_pages:rate1m` rule was intended to
measure the amount of memory pressure a system is under, but its name is
a bit misleading (it specifically refers to swap), and the rate of
`node_vmstat_pgmajfault` is a better metric for memory pressure
(see #1524).

This commit renames `instance:node_memory_swap_io_pages:rate1m` to
`instance:node_vmstat_pgmajfault:rate1m`, and defines it as
`rate(node_vmstat_pgmajfault{%(nodeExporterSelector)s}[1m])`. The
dashboards are updated accordingly.

Signed-off-by: Benoît Knecht <benoit.knecht@fsfe.org>
This commit is contained in:
Benoît Knecht 2019-10-24 18:13:36 +02:00
commit 5a7b85876d
2 changed files with 6 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

8
docs/node-mixin/rules/rules.libsonnet
View file

@ -50,13 +50,9 @@
||| % $._config,
},
{
record: 'instance:node_memory_swap_io_pages:rate1m',
record: 'instance:node_vmstat_pgmajfault:rate1m',
expr: |||
(
rate(node_vmstat_pgpgin{%(nodeExporterSelector)s}[1m])
+
rate(node_vmstat_pgpgout{%(nodeExporterSelector)s}[1m])
)
rate(node_vmstat_pgmajfault{%(nodeExporterSelector)s}[1m])
||| % $._config,
},
{