Fixed CortexQuerierHighRefetchRate alert

CHANGELOG.md

@@ -9,6 +9,7 @@
   git branch -u origin/main main
   ```
 * [ENHANCEMENT] Add `EtcdAllocatingTooMuchMemory` alert for monitoring etcd memory usage. #261
+* [BUGFIX] Fixed `CortexQuerierHighRefetchRate` alert. #268
 
 ## 1.7.0 / 2021-02-24
 

cortex-mixin/alerts/blocks.libsonnet

@@ -172,7 +172,7 @@
               (
                 sum by(namespace) (rate(cortex_querier_storegateway_refetches_per_query_count[5m]))
                 -
-                sum by(namespace) (rate(cortex_querier_storegateway_refetches_per_query_bucket{le="0"}[5m]))
+                sum by(namespace) (rate(cortex_querier_storegateway_refetches_per_query_bucket{le="0.0"}[5m]))
               )
               /
               sum by(namespace) (rate(cortex_querier_storegateway_refetches_per_query_count[5m]))