@Override
    public RemoteData.Builder serialize() {
        final RemoteData.Builder builder = RemoteData.newBuilder();
        builder.addDataStrings(serviceId);
        builder.addDataStrings(name);
        if (properties == null) {
            builder.addDataStrings(Const.EMPTY_STRING);
        } else {
            builder.addDataStrings(GSON.toJson(properties));
        }
        builder.addDataLongs(lastPingTimestamp);
        builder.addDataLongs(getTimeBucket());
        return builder;
    }
Keep the time bucket as the same time inserted.
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/instance/InstanceTraffic.java