WAS启动startManager报错

ADMU3011E: Server launched but failed initialization.

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at com.ibm.ws.hamanager.coordinator.impl.DCSPluginImpl.<init>(DCSPluginImpl.java:226)
... 32 more
Caused by: java.net.UnknownHostException: null: null
at java.net.InetAddress.getAllByName0(InetAddress.java:1270)
at java.net.InetAddress.getAllByName(InetAddress.java:1197)
at java.net.InetAddress.getAllByName(InetAddress.java:1119)
at com.ibm.ws.hamanager.coordinator.dcs.HostNameMap.getInetAddresses(HostNameMap.java:183)
at com.ibm.ws.hamanager.coordinator.dcs.HostNameMap.<init>(HostNameMap.java:63)
... 36 more

原因：除了正常的localhostNode01以外，还有一个nullNode01的结点

于是，在/etc/hosts加上mapping

127.0.0.1 null

启动startManager.sh

再删除nullNode01结点和127.0.0.1 null就行了