Apache Ambari -注册失败(HostnotFound异常)

Question

我正在尝试使用Apache Ambari创建一个节点集群。在这些步骤中，在步骤3中，我们需要提供要使用FQDN (完全限定域名)添加到群集的主机列表

为了获得FQDN，我使用

$ hostname -f 

Ubuntu终端的命令。以sridhar25的形式获得结果

在创建群集期间，将我的完全限定域名指定为sridhar25 1：http://i.stack.imgur.com/2IYCq.png

但在选择下一步后，我得到注册失败。

Registering with the Server.....
Registration with the Server Failed

我的日志文件显示

04 Mar 2016 11:05:05,268 ERROR [qtp-client-25] AbstractResourceProvider:280 - Caught AmbariException when creating a resource
org.apache.ambari.server.HostNotFoundException: Host not found, hostname=sridhar25
at org.apache.ambari.server.state.cluster.ClustersImpl.getHost(ClustersImpl.java:308)
at org.apache.ambari.server.state.ConfigHelper.getEffectiveDesiredTags(ConfigHelper.java:104)
at org.apache.ambari.server.controller.AmbariActionExecutionHelper.addExecutionCommandsToStage(AmbariActionExecutionHelper.java:342)
at org.apache.ambari.server.controller.AmbariManagementControllerImpl.createAction(AmbariManagementControllerImpl.java:2983)
at org.apache.ambari.server.controller.internal.RequestResourceProvider$1.invoke(RequestResourceProvider.java:161)
at org.apache.ambari.server.controller.internal.RequestResourceProvider$1.invoke(RequestResourceProvider.java:158)
at org.apache.ambari.server.controller.internal.AbstractResourceProvider.createResources(AbstractResourceProvider.java:273)
at org.apache.ambari.server.controller.internal.RequestResourceProvider.createResources(RequestResourceProvider.java:158)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:289)
at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:75)
at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:36)
at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:72)
at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:135)
at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:103)
at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:72)
at org.apache.ambari.server.api.services.RequestService.createRequests(RequestService.java:145)
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)

我甚至尝试过将FQDN更改为

$ hostname -f
sridhar25.sridhar.com

我也收到了同样的错误

如何在Ambari-Cluster中注册主机？

Answer 1

这很可能是DNS问题。是否将所有节点的条目添加到每个节点上的/etc/hosts文件中？

在每个节点上运行以下命令，分别获取正确的FQDN和IP。

hostname -f
ifconfig

有了这些值之后，需要将它们添加到每个主机上的/etc/hosts文件中。

例如，如果您只有两个节点，并且您获得了值：

sridhar25:
sridhar25.sridhar.com
192.168.1.12

sridhar26:
sridhar26.sridhar.com
192.168.1.13

然后，您需要将以下两行添加到每个/etc/hosts文件：

192.168.1.12 sridhar25.sridhar.com
192.168.1.13 sridhar26.sridhar.com