2017-04-01 71 views
0

我已经习惯了下面的代码来处理服务器关机:的Netty服务器关闭异常

public void stop() { 
     try { 
      this.channelFuture.channel().close(); 
      this.channelFuture.channel().closeFuture().sync(); 
     } catch (InterruptedException e) { 
      Log.exceptionStack(e); 
     } finally { 
      this.bootstrap.config().childGroup().shutdownGracefully(10, 30, TimeUnit.SECONDS); 
      this.bootstrap.config().group().shutdownGracefully(5, 10, TimeUnit.SECONDS); 
     } 
    } 

有时服务器shutsdown以下情况例外:

Exception in thread "nioEventLoopGroup-3-1" java.lang.NoClassDefFoundError: io/netty/buffer/PoolArena$1 
     at io.netty.buffer.PoolArena.freeChunk(PoolArena.java:293) 
     at io.netty.buffer.PoolThreadCache$MemoryRegionCache.freeEntry(PoolThreadCache.java:471) 
     at io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:441) 
     at io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:433) 
     at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:290) 
     at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:281) 
     at io.netty.buffer.PoolThreadCache.free0(PoolThreadCache.java:254) 
     at io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:250) 
     at io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:431) 
     at io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:408) 
     at io.netty.util.concurrent.FastThreadLocal.remove(FastThreadLocal.java:226) 
     at io.netty.util.concurrent.FastThreadLocal.removeAll(FastThreadLocal.java:67) 
     at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:146) 
     at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.ClassNotFoundException: io.netty.buffer.PoolArena$1 
     at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
     ... 14 more 
Exception in thread "Thread-1" java.lang.NoClassDefFoundError: io/netty/channel/AbstractChannelHandlerContext$13 
     at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:610) 
     at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:465) 
     at io.netty.channel.DefaultChannelPipeline.close(DefaultChannelPipeline.java:964) 
     at io.netty.channel.AbstractChannel.close(AbstractChannel.java:234) 
     at co.gps.smaartly.TrackerServer.stop(TrackerServer.java:59) 
     at co.gps.smaartly.ServerManager.stop(ServerManager.java:90) 
     at co.gps.smaartly.App$1.run(App.java:22) 
Caused by: java.lang.ClassNotFoundException: io.netty.channel.AbstractChannelHandlerContext$13 
     at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
     ... 7 more 

我使用的网状版本4.1.9。最终在JVM版本:

java version "1.8.0_121" 
Java(TM) SE Runtime Environment (build 1.8.0_121-b13) 
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode) 

在Ubuntu 16.04

请帮我在这里找出问题。让我知道是否需要其他细节。

+0

你在你的pom依赖中使用netty-all吗? – nllsdfx

+0

关闭服务器时,该jar是否仍然加载?一些jar部署系统在关闭服务器之前替换jar文件。如果你有一个系统,在写一个新文件之前删除这个文件,因为在Linux上这意味着旧文件仍然正常加载 – Ferrybig

+0

@DmitrySoroka我已经在pom依赖文件中包含了netty-all – sshntt

回答

1

这很可能是因为在关闭100%完成之前卸载了jar。 .shutdownGracefully(...)是异步的,所以你应该在这里使用.shutdownGracefully(...).sync()