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我的/etc/hosts文件看起来像这样

127.0.0.1   localhost
::1     localhost ip6-localhost ip6-loopback
fe00::0     ip6-localnet
ff00::0     ip6-mcastprefix
ff02::1     ip6-allnodes
ff02::2     ip6-allrouters
#127.0.1.1       server3
x.y.z.x0 server1
x.y.z.x1 server2
x.y.z.x2 server3
x.x.z.x3 server4

但是当我尝试使用MPJExpress运行简单的 java 代码时，我发现以下异常

abraham@myserver:~/project$ mpjboot machines (machines 文件内容与 /etc/hosts 相同)

java.net.UnknownHostException: ip6-localnet
    at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:867)
    at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1246)
    at java.net.InetAddress.getAllByName0(InetAddress.java:1197)
    at java.net.InetAddress.getAllByName(InetAddress.java:1128)
    at java.net.InetAddress.getAllByName(InetAddress.java:1064)
    at java.net.InetAddress.getByName(InetAddress.java:1014)
    at runtime.starter.PortScan.main(PortScan.java:41)
mpjboot found port 10000 busy on ip6-localnet machine. There are two possibilities:
    (1) The daemon might already be running...
    (2) If the daemon is not running, then set a different port by modifying the wrapper.app.parameter.2 property in the /home/hduser/

我已尝试按照错误消息的建议更改端口号，但无济于事。

有任何想法吗？

这是我的平台信息： Ubuntu Linaro 12.08 running on armv7l

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1 回答 1

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由于机器文件格式不正确，您会收到错误消息。机器文件应包含机器的 IP 地址或名称（映射到主机文件中的 IP 地址）。

根据给定的主机文件，机器文件应该是这样的

server1
server2
server3
server4

或者

x.y.z.x0
x.y.z.x1
x.y.z.x2
x.x.z.x3
于 2015-03-01T21:29:56.523 回答