Pull request 2292: 7338-stats-log-msg

Updates AdguardTeam#7338.

Squashed commit of the following:

commit a3ff2af
Merge: 9558de1 5b45f6d
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Oct 14 17:48:26 2024 +0300

    Merge branch 'master' into 7338-stats-log-msg

commit 9558de1
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Oct 14 14:11:13 2024 +0300

    all: imp stats log msg

CHANGELOG.md

@@ -31,13 +31,15 @@ NOTE: Add new changes BELOW THIS COMMENT.
 
 ### Fixed
 
+- Repetitive statistics log messages ([#7338]).
 - Custom client cache ([#7250]).
 - Missing runtime clients with information from the system hosts file on first
   AdGuard Home start ([#7315]).
 
 [#6818]: https://github.com/AdguardTeam/AdGuardHome/issues/6818
 [#7250]: https://github.com/AdguardTeam/AdGuardHome/issues/7250
 [#7315]: https://github.com/AdguardTeam/AdGuardHome/issues/7315
+[#7338]: https://github.com/AdguardTeam/AdGuardHome/issues/7338
 
 <!--
 NOTE: Add new changes ABOVE THIS COMMENT.

internal/stats/stats.go

@@ -467,7 +467,7 @@ func (s *StatsCtx) flushDB(id, limit uint32, ptr *unit) (cont bool, sleepFor tim
 	if delErr != nil {
 		// TODO(e.burkov):  Improve the algorithm of deleting the oldest bucket
 		// to avoid the error.
-		lvl := slog.LevelWarn
+		lvl := slog.LevelDebug
 		if !errors.Is(delErr, bbolt.ErrBucketNotFound) {
 			isCommitable = false
 			lvl = slog.LevelError