From 983bd0e70a2c3333ca7c93fc6c8e7b67535b6b2d Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Mon, 5 Aug 2024 18:46:35 +0300
Subject: [PATCH] Also retry initial mounting

---
 internal/backend_s3.go | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/internal/backend_s3.go b/internal/backend_s3.go
index ef1ea0cf..159e7e2e 100644
--- a/internal/backend_s3.go
+++ b/internal/backend_s3.go
@@ -360,13 +360,21 @@ func (s *S3Backend) detectBucketLocationByHEAD() (err error, isAws bool) {
 }
 
 func (s *S3Backend) testBucket(key string) (err error) {
-	_, err = s.HeadBlob(&HeadBlobInput{Key: key})
+	oldAttempts := s.flags.ReadRetryAttempts
+	if oldAttempts == 0 {
+		// Never wait infinitely for init
+		s.flags.ReadRetryAttempts = 5
+	}
+	err = ReadBackoff(s.flags, func(attempt int) error {
+		_, err := s.HeadBlob(&HeadBlobInput{Key: key});
+		return err
+	})
 	if err != nil {
 		if mapAwsError(err) == syscall.ENOENT {
 			err = nil
 		}
 	}
-
+	s.flags.ReadRetryAttempts = oldAttempts
 	return
 }