diff --git a/akka-cluster-sharding/src/main/scala/akka/cluster/sharding/ShardRegion.scala b/akka-cluster-sharding/src/main/scala/akka/cluster/sharding/ShardRegion.scala
index 6f9bd86727..9969bda4ee 100644
--- a/akka-cluster-sharding/src/main/scala/akka/cluster/sharding/ShardRegion.scala
+++ b/akka-cluster-sharding/src/main/scala/akka/cluster/sharding/ShardRegion.scala
@@ -931,12 +931,23 @@ private[akka] class ShardRegion(
         val coordinatorMessage =
           if (cluster.state.unreachable(membersByAge.head)) s"Coordinator [${membersByAge.head}] is unreachable."
           else s"Coordinator [${membersByAge.head}] is reachable."
-        log.warning(
-          "{}: Trying to register to coordinator at [{}], but no acknowledgement. Total [{}] buffered messages. [{}]",
-          typeName,
-          actorSelections.mkString(", "),
-          shardBuffers.totalSize,
-          coordinatorMessage)
+        val bufferSize = shardBuffers.totalSize
+        if (bufferSize > 0) {
+          if (log.isWarningEnabled) {
+            log.warning(
+              "{}: Trying to register to coordinator at [{}], but no acknowledgement. Total [{}] buffered messages. [{}]",
+              typeName,
+              actorSelections.mkString(", "),
+              bufferSize,
+              coordinatorMessage)
+          }
+        } else if (log.isDebugEnabled) {
+          log.debug(
+            "{}: Trying to register to coordinator at [{}], but no acknowledgement. No buffered messages yet. [{}]",
+            typeName,
+            actorSelections.mkString(", "),
+            coordinatorMessage)
+        }
       } else {
         // Members start off as "Removed"
         val partOfCluster = cluster.selfMember.status != MemberStatus.Removed
@@ -946,11 +957,17 @@ private[akka] class ShardRegion(
           else
             "Probably, no seed-nodes configured and manual cluster or bootstrap join not performed?"
 
-        log.warning(
-          "{}: No coordinator found to register. {} Total [{}] buffered messages.",
-          typeName,
-          possibleReason,
-          shardBuffers.totalSize)
+        val bufferSize = shardBuffers.totalSize
+        if (bufferSize > 0) {
+          log.warning(
+            "{}: No coordinator found to register. {} Total [{}] buffered messages.",
+            typeName,
+            possibleReason,
+            bufferSize)
+        } else {
+          log.debug("{}: No coordinator found to register. {} No buffered messages yet.", typeName, possibleReason)
+        }
+
       }
     }
   }