Increase memcached index caching TTL (#718)

Signed-off-by: Marco Pracucci <marco@pracucci.com>
grafana · Jan 12, 2022 · 66c21b3 · 66c21b3
1 parent 73640af
commit 66c21b3
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -80,6 +80,7 @@
   * `-blocks-storage.bucket-store.index-header-lazy-loading-enabled` default from `false` to `true`
   * `-blocks-storage.bucket-store.index-header-lazy-loading-idle-timeout` default from `20m` to `1h`
 * [CHANGE] Distributor: removed the `-distributor.shard-by-all-labels` configuration option. It is now assumed to be true. #698
+* [CHANGE] Store-gateway: increased memcached index caching TTL from 1 day to 7 days. #718
 * [FEATURE] Query Frontend: Add `cortex_query_fetched_chunks_total` per-user counter to expose the number of chunks fetched as part of queries. This metric can be enabled with the `-frontend.query-stats-enabled` flag (or its respective YAML config option `query_stats_enabled`). #31
 * [FEATURE] Query Frontend: Add experimental querysharding for the blocks storage (instant and range queries). You can now enable querysharding for blocks storage (`-store.engine=blocks`) by setting `-query-frontend.parallelize-shardable-queries` to `true`. The following additional config and exported metrics have been added. #79 #80 #100 #124 #140 #148 #150 #151 #153 #154 #155 #156 #157 #158 #159 #160 #163 #169 #172 #196 #205 #225 #226 #227 #228 #230 #235 #240 #239 #246 #244 #319 #330 #371 #385 #400 #458 #586 #630 #660 #707
   * New config options:

diff --git a/pkg/storage/tsdb/cache/memcached.go b/pkg/storage/tsdb/cache/memcached.go
@@ -25,7 +25,7 @@ import (
 )
 
 const (
-	memcachedDefaultTTL = 24 * time.Hour
+	memcachedDefaultTTL = 7 * 24 * time.Hour
 )
 
 // MemcachedIndexCache is a memcached-based index cache.