From 31b6cad47b2076ba7384b62649d280d9cdd8892b Mon Sep 17 00:00:00 2001
From: Asim Aslam <asim@aslam.me>
Date: Mon, 4 Feb 2019 10:29:10 +0000
Subject: [PATCH] make copy before writing

---
 server/rpc_server.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/server/rpc_server.go b/server/rpc_server.go
index de3b8fd3..fa8aed43 100644
--- a/server/rpc_server.go
+++ b/server/rpc_server.go
@@ -274,12 +274,18 @@ func (s *rpcServer) Register() error {
 		return err
 	}
 
+	// make copy of metadata
+	md := make(metadata.Metadata)
+	for k, v := range config.Metadata {
+		md[k] = v
+	}
+
 	// register service
 	node := &registry.Node{
 		Id:       config.Name + "-" + config.Id,
 		Address:  addr,
 		Port:     port,
-		Metadata: config.Metadata,
+		Metadata: md,
 	}
 
 	node.Metadata["transport"] = config.Transport.String()