volume: load ec shards during heartbeats to master

weed/storage/disk_location_ec_test.go

@@ -0,0 +1,17 @@
+package storage
+
+import (
+	"testing"
+)
+
+func TestLoadingEcShards(t *testing.T) {
+	dl := NewDiskLocation("./erasure_coding", 100)
+	err := dl.loadAllEcShards()
+	if err != nil {
+		t.Errorf("load all ec shards: %v", err)
+	}
+
+	if len(dl.ecShards)!=1 {
+		t.Errorf("loading err")
+	}
+}