我在dmgr里面原来管理了四个 Node Agent,现在有两台Agent上面的应用不用了，所以我在dmgr上面吧这两台服务器上面的Node Agent给移除了，这样之前能正常运行在这个Dmgr上面的其他两个Node Agent上面的应用就报错了，意思就是找不到被我移除的Agent的服务器了，错误如下：
问题：为什么我从Dmgr把这两个服务器的Node Agent 移除了，系统还会去找呢，这个错误改怎么解决，求指导？
[1/28/14 6:11:37:644 CST] 00000004 HostNameMap E HMGR0024W: An error was encountered while looking up the IP address for the host name of a core group member. The host name is maxapp03 and the exception is java.net.UnknownHostException: maxapp03: maxapp03
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.updateAddresses(HostNameMap.java:141)
at com.ibm.ws.hamanager.coordinator.dcs.HostNameMapManager$IPRefresher.alarm(HostNameMapManager.java:130)
at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:133)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
.
[1/28/14 6:11:37:684 CST] 00000004 HostNameMap E HMGR0024W: An error was encountered while looking up the IP address for the host name of a core group member. The host name is maxapp01 and the exception is java.net.UnknownHostException: maxapp01: maxapp01
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.updateAddresses(HostNameMap.java:141)
at com.ibm.ws.hamanager.coordinator.dcs.HostNameMapManager$IPRefresher.alarm(HostNameMapManager.java:130)
at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:133)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
.
[1/28/14 6:11:37:711 CST] 00000004 HostNameMap E HMGR0024W: An error was encountered while looking up the IP address for the host name of a core group member. The host name is maxapp02 and the exception is java.net.UnknownHostException: maxapp02: maxapp02
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.updateAddresses(HostNameMap.java:141)
at com.ibm.ws.hamanager.coordinator.dcs.HostNameMapManager$IPRefresher.alarm(HostNameMapManager.java:130)
at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:133)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
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