|  | @@ -97,7 +97,7 @@ public class WebSocketService extends AbstractWebSocketHandler {
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				|  |  |          PING_MAP.put(session.getId(), LocalDateTime.now());
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				|  |  |      }
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				|  |  |  
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				|  |  | -    @Scheduled(fixedDelay = 5000)
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				|  |  | +    @Scheduled(fixedDelay = 2000)
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				|  |  |      public void ping() {
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				|  |  |          for (Map.Entry<String, WebSocketSession> entry : SESSION_MAP.entrySet()) {
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				|  |  |              String k = entry.getKey();
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