Technologies/Memcached/memcached_operation_hit_ratio
MemcachedMemcachedMetric

memcached_operation_hit_ratio

Hit ratio for operations, expressed as a percentage value between 0.0 and 100.0.
Dimensions:None
Available on:OpenTelemetryOpenTelemetry (1)
Interface Metrics (1)
OpenTelemetryOpenTelemetry
Hit ratio for operations, expressed as a percentage value between 0.0 and 100.0.
Dimensions:None
Related Insights (3)
Eviction Storm Indicating Memory Exhaustioncritical

High eviction rates signal that Memcached is running out of memory and removing cached items prematurely, leading to increased cache misses and database load.

Hit Ratio Collapse Revealing Cache Misusewarning

A sudden drop in cache hit ratio exposes ineffective caching strategies, such as frequently missed keys never being stored, or cache restarts causing data loss.

Prefix Analysis Exposing Ineffective Cache Segmentsinfo

Monitoring cache performance by key prefix reveals cache segments with low hit ratios or disproportionate memory consumption, indicating optimization opportunities or bugs.