2015-12-23 16:12:05 +08:00
parent 33944bd01c
commit 789a547f6b
1 changed files with 1 additions and 1 deletions
--- a/src/org/redkale/net/http/WebSocketNode.java
+++ b/src/org/redkale/net/http/WebSocketNode.java
@@ -67,7 +67,7 @@ public abstract class WebSocketNode {
        Set<String> engineids = localNodes.get(groupid);
        if (engineids == null) {
            engineids = new CopyOnWriteArraySet<>();
-            localNodes.put(groupid, engineids);
+            localNodes.putIfAbsent(groupid, engineids);
        }
        if (localSncpAddress != null && engineids.isEmpty()) connect(groupid, localSncpAddress);
        engineids.add(engineid);