xend报错：
[2012-02-06 13:43:39 15439] INFO (XMLRPCServer:134) Opening TCP XML-RPC
server on localhost:9363; authentication has been disabled for this server.
[2012-02-06 13:43:39 15439] INFO (XMLRPCServer:156) Opening Unix domain
socket XML-RPC server on /var/run/xend/xen-api.sock; authentication has been
disabled for this server.
[2012-02-06 13:43:39 15439] ERROR (XMLRPCServer:161) Cannot start server:
Name or service not known!
[2012-02-06 13:43:39 15439] INFO (XMLRPCServer:156) Opening Unix domain
socket XML-RPC server on /var/run/xend/xmlrpc.sock.
[2012-02-06 13:44:10 15439] ERROR (SrvServer:139) Server XMLRPCServer did not
initialise!
原因：
/etc/hosts中没有localhost
而xend配置文件中使用了localhost：
(xen-api-server ((localhost:9363 none)(unix none)))
258 (xend-http-server yes)
259 (xend-relocation-server yes)
260 (xend-port 8000)
261 (xend-relocation-port 8002)
262 (network-script network-bridge)
263 (vif-script vif-bridge)
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