两种不同方式，但是用client连接到服务失败，这是为什么？

[cheniqit]

第一步： 首先我用简单的main方法加载xml来启动motan服务，启动成功。 然后用client去连接用main方法启动的服务，是连接成功的。

第二步： 我想集成到项目中，并用tomcat启动，发现启动成功。 但是我用第一步的clent去连接服务的时候，发现连接失败。报错如下：

info - ClusterSupport config change notify: registry=local://127.0.0.1:0/com.weibo.api.motan.registry.RegistryService service=motan://192.168.31.244:0/default_rpc/com.mk.hotel.hotelinfo.HotelService/1.0/referer urls=[motan://localhost:10068/default_rpc/com.mk.hotel.hotelinfo.HotelService/1.0/service] 11:51:16.766 [RMI TCP Connection(2)-127.0.0.1] INFO info - refresh weight. weight= 11:51:16.766 [RMI TCP Connection(2)-127.0.0.1] INFO info - ignore weightString: 11:51:16.800 [RMI TCP Connection(2)-127.0.0.1] INFO info - NettyEndpointFactory create client: url=motan://localhost:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:51:16.910 [RMI TCP Connection(2)-127.0.0.1] INFO info - init compress codec 11:51:16.914 [RMI TCP Connection(2)-127.0.0.1] INFO info - init nettyclient. url:localhost-com.mk.hotel.hotelinfo.HotelService, use codec:DefaultRpcCodec 11:51:17.018 [New I/O client boss #1] ERROR error - NettyChannelHandler exceptionCaught: remote=null local=null event=java.net.ConnectException: Connection refused java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.7.0_79] at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739) ~[na:1.7.0_79] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:384) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:354) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:276) ~[netty-3.2.5.Final.jar:na] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] 11:51:17.032 [RMI TCP Connection(2)-127.0.0.1] ERROR error - NettyClient init pool create connect Error: url=motan://localhost:10068/com.mk.hotel.hotelinfo.HotelService com.weibo.api.motan.exception.MotanServiceException: error_message: NettyChannel failed to connect to server, url: motan://localhost:10068/com.mk.hotel.hotelinfo.HotelService, result: true, success: false, connected: false, status: 503, error_code: 10001,r= at com.weibo.api.motan.transport.netty.NettyChannel.open(NettyChannel.java:150) ~[motan-transport-netty-0.1.1.jar:na] at com.weibo.api.motan.transport.netty.NettyChannelFactory.makeObject(NettyChannelFactory.java:53) ~[motan-transport-netty-0.1.1.jar:na] at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1617) ~[commons-pool-1.5.4.jar:1.5.4] at com.weibo.api.motan.transport.AbstractPoolClient.initPool(AbstractPoolClient.java:64) ~[motan-core-0.1.1.jar:na] at com.weibo.api.motan.transport.netty.NettyClient.open(NettyClient.java:217) [motan-transport-netty-0.1.1.jar:na]

顺便，我贴上两次启动服务的日志都是一样的： main方法启动服务： 11:37:51.118 [main] INFO info - RequestRouter addProvider: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc all_public_method_count=13 11:37:51.138 [main] INFO info - NettyEndpointFactory create no_share_channel server: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:37:51.200 [main] INFO info - NettyServer ServerChannel start Open: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:37:51.285 [main] INFO info - NettyServer ServerChannel finish Open: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:37:51.286 [main] INFO info - DefaultRpcExporter node init Success: [DefaultRpcExporter] url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:37:51.287 [main] INFO info - DefaultRpcProtocol export Success: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:37:51.298 [main] INFO info - [LocalRegistryService] Url (motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc) will register to Registry [local://127.0.0.1:0/default_rpc/com.weibo.api.motan.registry.RegistryService/1.0/service] 11:37:51.298 [main] INFO info - LocalRegistryService register: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc

用tomcate启动服务： 11:39:58.706 [RMI TCP Connection(2)-127.0.0.1] INFO info - RequestRouter addProvider: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc all_public_method_count=13 11:39:58.715 [RMI TCP Connection(2)-127.0.0.1] INFO info - NettyEndpointFactory create no_share_channel server: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:39:58.745 [RMI TCP Connection(2)-127.0.0.1] INFO info - NettyServer ServerChannel start Open: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:39:58.820 [RMI TCP Connection(2)-127.0.0.1] INFO info - NettyServer ServerChannel finish Open: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:39:58.821 [RMI TCP Connection(2)-127.0.0.1] INFO info - DefaultRpcExporter node init Success: [DefaultRpcExporter] url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:39:58.822 [RMI TCP Connection(2)-127.0.0.1] INFO info - DefaultRpcProtocol export Success: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc 11:39:58.830 [RMI TCP Connection(2)-127.0.0.1] INFO info - [LocalRegistryService] Url (motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc) will register to Registry [local://127.0.0.1:0/default_rpc/com.weibo.api.motan.registry.RegistryService/1.0/service] 11:39:58.830 [RMI TCP Connection(2)-127.0.0.1] INFO info - LocalRegistryService register: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService?group=default_rpc

[cheniqit]

我也参考了项目组提供的错误码尝试去解决问题，但是我发现服务端是启动是成功的。

[rayzhang0603]

java.net.ConnectException: Connection refused 这个是原因。 motan://localhost:10068/default_rpc/com.mk.hotel.hotelinfo.HotelService/1.这个是获取到的server信息，请检查是不是hosts没有配置localhost

[cheniqit]

有配置的，通过main方法启动是成功的可以看到日志信息，tomcate启动服务看到的日志信息也是启动成功的。 @rayzhang0603 host配置如下：

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1       localhost
255.255.255.255 broadcasthost
#::1             localhost

[cheniqit]

@rayzhang0603 我改client端的配置改成我的自己的ip之后也还是连接失败。

配置信息如下： <motan:referer id="remoteHotelService" requestTimeout="3000" interface="com.mk.hotel.hotelinfo.HotelService" directUrl="192.168.59.3:10068" protocol="motan"/>

报错信息如下：

MI TCP Connection(2)-127.0.0.1] INFO info - init nettyclient. url:192.168.59.3-com.mk.hotel.hotelinfo.HotelService, use codec:DefaultRpcCodec 14:06:11.868 [New I/O client boss #1] ERROR error - NettyChannelHandler exceptionCaught: remote=null local=null event=java.net.ConnectException: Connection refused java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.7.0_79] at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739) ~[na:1.7.0_79] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:384) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:354) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:276) ~[netty-3.2.5.Final.jar:na] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79] 14:06:11.870 [RMI TCP Connection(2)-127.0.0.1] ERROR error - NettyClient init pool create connect Error: url=motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService com.weibo.api.motan.exception.MotanServiceException: error_message: NettyChannel failed to connect to server, url: motan://192.168.59.3:10068/com.mk.hotel.hotelinfo.HotelService, result: true, success: false, connected: false, status: 503, error_code: 10001,r= at com.weibo.api.motan.transport.netty.NettyChannel.open(NettyChannel.java:150) ~[motan-transport-netty-0.1.1.jar:na] at com.weibo.api.motan.transport.netty.NettyChannelFactory.makeObject(NettyChannelFactory.java:53) ~[motan-transport-netty-0.1.1.jar:na] at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1617) ~[commons-pool-1.5.4.jar:1.5.4] at com.weibo.api.motan.transport.AbstractPoolClient.initPool(AbstractPoolClient.java:64) ~[motan-core-0.1.1.jar:na] at com.weibo.api.motan.transport.netty.NettyClient.open(NettyClient.java:217) [motan-transport-netty-0.1.1.jar:na] at com.weibo.api.motan.protocol.rpc.DefaultRpcProtocol$DefaultRpcReferer.doInit(DefaultRpcProtocol.java:196) [motan-core-0.1.1.jar:na] at com.weibo.api.motan.rpc.AbstractNode.init(AbstractNode.java:46) [motan-core-0.1.1.jar:na]

[rayzhang0603]

java.net.ConnectException: Connection refused 从这个方向找找看吧，看对应端口是否正确，telnet是否能连接上

[cheniqit]

➜ 1.0-SNAPSHOT git:(master) ✗ telnet 192.168.59.3 10068 Trying 192.168.59.3... Connected to 192.168.59.3. Escape character is '^]'.

之前我也欢迎是这个问题。但是我telnet过了，是可以的。

[rayzhang0603]

client和server是在不同的主机上吧？有设置iptables之类的吗？从这个报错上看建立socket就失败了

[cheniqit]

@rayzhang0603

发现一个奇怪的现象，刚开始启动服务端的时候，telnet是可以。一旦启动client之后就telnet就不通了，这个是为何？ client是没有启动服务的

[cheniqit]

在同一机器上面。

[rayzhang0603]

估计跟server和client的spring配置加载方式有关，可能是什么操作导致server端停止服务了。建议debug看看client初始化时有没有影响到server吧