Actually set the chunk-age-jitter to 0 (#2364)

Signed-off-by: Goutham Veeramachaneni <[email protected]>

Author: gouthamve

docs/configuration/config-file-reference.md

@@ -577,7 +577,7 @@ lifecycler:
 
 # Range of time to subtract from -ingester.max-chunk-age to spread out flushes
 # CLI flag: -ingester.chunk-age-jitter
-[chunk_age_jitter: <duration> | default = 20m0s]
+[chunk_age_jitter: <duration> | default = 0s]
 
 # Number of concurrent goroutines flushing to dynamodb.
 # CLI flag: -ingester.concurrent-flushes

pkg/ingester/ingester.go

@@ -84,7 +84,7 @@ func (cfg *Config) RegisterFlags(f *flag.FlagSet) {
 	f.DurationVar(&cfg.MaxChunkIdle, "ingester.max-chunk-idle", 5*time.Minute, "Maximum chunk idle time before flushing.")
 	f.DurationVar(&cfg.MaxStaleChunkIdle, "ingester.max-stale-chunk-idle", 2*time.Minute, "Maximum chunk idle time for chunks terminating in stale markers before flushing. 0 disables it and a stale series is not flushed until the max-chunk-idle timeout is reached.")
 	f.DurationVar(&cfg.MaxChunkAge, "ingester.max-chunk-age", 12*time.Hour, "Maximum chunk age before flushing.")
-	f.DurationVar(&cfg.ChunkAgeJitter, "ingester.chunk-age-jitter", 20*time.Minute, "Range of time to subtract from -ingester.max-chunk-age to spread out flushes")
+	f.DurationVar(&cfg.ChunkAgeJitter, "ingester.chunk-age-jitter", 0, "Range of time to subtract from -ingester.max-chunk-age to spread out flushes")
 	f.BoolVar(&cfg.SpreadFlushes, "ingester.spread-flushes", true, "If true, spread series flushes across the whole period of -ingester.max-chunk-age.")
 	f.IntVar(&cfg.ConcurrentFlushes, "ingester.concurrent-flushes", 50, "Number of concurrent goroutines flushing to dynamodb.")
 	f.DurationVar(&cfg.RateUpdatePeriod, "ingester.rate-update-period", 15*time.Second, "Period with which to update the per-user ingestion rates.")