LogDog: BigTable batching schema.

appengine/logdog/coordinator/config/bigTable.go

Index: appengine/logdog/coordinator/config/bigTable.go
diff --git a/appengine/logdog/coordinator/config/bigTable.go b/appengine/logdog/coordinator/config/bigTable.go
index 97045d143db95850e10a840c43897edeea40c63a..811e171abc41926a5d055a5174ac66843eafd0f6 100644
--- a/appengine/logdog/coordinator/config/bigTable.go
+++ b/appengine/logdog/coordinator/config/bigTable.go
@@ -79,7 +79,7 @@ func GetStorage(c context.Context) (storage.Storage, error) {
 	// calls.
 	c = metadata.NewContext(c, nil)
 
-	return bigtable.New(c, bigtable.Options{
+	st, err := bigtable.New(c, bigtable.Options{
 		Project:  bt.Project,
 		Zone:     bt.Zone,
 		Cluster:  bt.Cluster,
@@ -87,5 +87,10 @@ func GetStorage(c context.Context) (storage.Storage, error) {
 		ClientOptions: []cloud.ClientOption{
 			cloud.WithTokenSource(a.TokenSource()),
 		},
-	}), nil
+	})
+	if err != nil {
+		log.WithError(err).Errorf(c, "Failed to create BigTable instance.")
+		return nil, err
+	}
+	return st, nil
 }