1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
from django.core.cache.backends import locmem
from django_prometheus.cache.metrics import (
django_cache_get_total,
django_cache_hits_total,
django_cache_misses_total,
)
class LocMemCache(locmem.LocMemCache):
"""Inherit filebased cache to add metrics about hit/miss ratio"""
def get(self, key, default=None, version=None):
django_cache_get_total.labels(backend="locmem").inc()
cached = super().get(key, default=None, version=version)
if cached is not None:
django_cache_hits_total.labels(backend="locmem").inc()
else:
django_cache_misses_total.labels(backend="locmem").inc()
return cached or default
|
