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POShutting down Netty Server
 

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    <p>I have a little problem about shutting down Netty Server. The documentation says about shutting down the server is that;</p> <pre><code>public class TimeServer { static final ChannelGroup allChannels = new DefaultChannelGroup("time-server"); public static void main(String[] args) throws Exception { ... ChannelFactory factory = ...; ServerBootstrap bootstrap = ...; ... Channel channel = bootstrap.bind(...); allChannels.add(channel); waitForShutdownCommand(); ChannelGroupFuture future = allChannels.close(); future.awaitUninterruptibly(); factory.releaseExternalResources(); } </code></pre> <p>}</p> <p>then after searching around what "waitForShutDownCommand" is, I found that it is something like a ShutdownHook method. Well then I added a shutdownhook method to my server, </p> <pre><code>Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() { @Override public void run() { nettyServer.shutDown(); } }, "shutDownHook")); </code></pre> <p>But then, I realized that when I try to quit my server with ctrl-c it is not called always. Because When server shutdown I want to do some operation which is related to that server. (Like deleting all the data from Redis which is related to that server.)</p> <p>So.. I come up with an idea, but I did not implement yet, I just want to make sure that if it is a good approach or not. So, to shutdown a server I need a CLIENT (Admin Client) which sends SHUTDOWN command to that server.Actually, I did not want to create an ADMIN Client, because I don't want to care of another client application and security things etc...</p> <p>So what is your solutions? Any Ideas? Thanks...</p>
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