[HDFS-11479] Socket re-use address option should be used in SimpleUdpServer

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha4
• Component/s: nfs
• Hadoop Flags: Reviewed
• Assignee: Mukul Kumar Singh
• Reporter: Mukul Kumar Singh
• Created: 01/Mar/17 11:08
• Updated: 21/Apr/17 21:50
• Resolved: 01/Mar/17 21:00

Description

Nfs gateway restart can fail because of bind error in SimpleUdpServer.

re-use address option should be used in SimpleUdpServer to so that socket bind can happen when it is in TIME_WAIT state

2017-02-28 04:19:53,495 FATAL mount.MountdBase (MountdBase.java:startUDPServer(66)) - Failed to start the UDP server.
org.jboss.netty.channel.ChannelException: Failed to bind to: 0.0.0.0/0.0.0.0:4242
        at org.jboss.netty.bootstrap.ConnectionlessBootstrap.bind(ConnectionlessBootstrap.java:204)
        at org.apache.hadoop.oncrpc.SimpleUdpServer.run(SimpleUdpServer.java:68)
        at org.apache.hadoop.mount.MountdBase.startUDPServer(MountdBase.java:64)
        at org.apache.hadoop.mount.MountdBase.start(MountdBase.java:97)
        at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.startServiceInternal(Nfs3.java:56)
        at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3.startService(Nfs3.java:69)
        at org.apache.hadoop.hdfs.nfs.nfs3.PrivilegedNfsGatewayStarter.start(PrivilegedNfsGatewayStarter.java:71)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
Caused by: java.net.BindException: Address already in use
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:433)
        at sun.nio.ch.DatagramChannelImpl.bind(DatagramChannelImpl.java:691)
        at sun.nio.ch.DatagramSocketAdaptor.bind(DatagramSocketAdaptor.java:91)
        at org.jboss.netty.channel.socket.nio.NioDatagramPipelineSink.bind(NioDatagramPipelineSink.java:129)
        at org.jboss.netty.channel.socket.nio.NioDatagramPipelineSink.eventSunk(NioDatagramPipelineSink.java:77)
        at org.jboss.netty.channel.Channels.bind(Channels.java:561)
        at org.jboss.netty.channel.AbstractChannel.bind(AbstractChannel.java:189)
        at org.jboss.netty.bootstrap.ConnectionlessBootstrap.bind(ConnectionlessBootstrap.java:198)
        ... 11 more