private void stopCanalInstanceIfNecessary(ClientIdentity clientIdentity) {
List<ClientIdentity> clientIdentitys =
embededServer.listAllSubscribe(clientIdentity.getDestination());
if (clientIdentitys != null
&& clientIdentitys.size() == 1
&& clientIdentitys.contains(clientIdentity)) {
ServerRunningMonitor runningMonitor =
ServerRunningMonitors.getRunningMonitor(clientIdentity.getDestination());
if (runningMonitor.isStart()) {
runningMonitor.stop();
}
}
}