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from django_memcached_consul import memcached
from django_prometheus.cache.metrics import (
django_cache_get_total,
django_cache_hits_total,
django_cache_misses_total,
)
class MemcachedCache(memcached.MemcachedCache):
"""Inherit django_memcached_consul to add metrics about hit/miss ratio"""
def get(self, key, default=None, version=None):
django_cache_get_total.labels(backend="django_memcached_consul").inc()
cached = super().get(key, default=None, version=version)
if cached is not None:
django_cache_hits_total.labels(backend="django_memcached_consul").inc()
else:
django_cache_misses_total.labels(backend="django_memcached_consul").inc()
return cached or default
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