From b2272fef3a6b0d50775074257edee5d2d5d7dc8d Mon Sep 17 00:00:00 2001
From: Niko Storni <niko@lbry.io>
Date: Wed, 18 Aug 2021 19:36:47 +0200
Subject: [PATCH] delete overflowing blobs from underlying cache

---
 store/gcache.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/store/gcache.go b/store/gcache.go
index 03e2829..f21ed8d 100644
--- a/store/gcache.go
+++ b/store/gcache.go
@@ -144,11 +144,15 @@ func (l *GcacheStore) loadExisting(store lister, maxItems int) error {
 	logrus.Infof("read %d files from underlying store", len(existing))
 
 	added := 0
-	for _, h := range existing {
+	for i, h := range existing {
 		_ = l.cache.Set(h, true)
 		added++
 		if maxItems > 0 && added >= maxItems { // underlying cache is bigger than the cache
-			break
+			err := l.Delete(h)
+			logrus.Infof("deleted overflowing blob: %s (%d/%d)", h, i, len(existing))
+			if err != nil {
+				logrus.Warnf("error while deleting a blob that's overflowing the cache: %s", err.Error())
+			}
 		}
 	}
 	return nil