volume: load ec shards during heartbeats to master

weed/storage/store_ec.go

@@ -0,0 +1,21 @@
+package storage
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+)
+
+func (s *Store) CollectErasureCodingHeartbeat() *master_pb.Heartbeat {
+	var ecShardMessages []*master_pb.VolumeEcShardInformationMessage
+	for _, location := range s.Locations {
+		location.ecShardsLock.RLock()
+		for _, ecShards := range location.ecShards {
+			ecShardMessages = append(ecShardMessages, ecShards.ToVolumeInformationMessage()...)
+		}
+		location.ecShardsLock.RUnlock()
+	}
+
+	return &master_pb.Heartbeat{
+		EcShards: ecShardMessages,
+	}
+
+}