hadoop集群的namenode节点无法从浏览器访问? 5C

搭建了hadoop-ha配置,node01中namenode可用浏览器访问,如下图
图片说明
而node02用浏览器访问时,输入节点名称无法访问,输入ip地址可以访问,如下图
图片说明
图片说明
防火墙已关闭,在node01中ping node02也可ping通
请问这是为什么,如何才能成功使用node02:50070访问?

1个回答

看样子是没有添加主机名和IP的映射关系。解决方法如下:
在node2节点中,在/etc/hosts文件中,添加:“192.168.65.12 node02”即可。
我的建议是,在集群中的每一个节点上,都在/etc/hosts文档中加入所有节点的 IP-主机名 映射关系。也可以再一个节点上修改,后将配置文件复制到其他节点上。

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Already tried 5 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS) 2019-06-01 02:20:05,609 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: S100/192.168.17.100:8031. Already tried 6 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS) 2019-06-01 02:20:06,611 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: S100/192.168.17.100:8031. Already tried 7 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS) 2019-06-01 02:20:07,616 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: S100/192.168.17.100:8031. Already tried 8 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS) 2019-06-01 02:20:08,620 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: S100/192.168.17.100:8031. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS) 2019-06-01 02:20:08,624 ERROR org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Unexpected error starting NodeStatusUpdater java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732) at org.apache.hadoop.ipc.Client.call(Client.java:1480) at org.apache.hadoop.ipc.Client.call(Client.java:1413) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) at com.sun.proxy.$Proxy73.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:68) at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy74.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.registerWithRM(NodeStatusUpdaterImpl.java:271) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:197) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStart(NodeManager.java:272) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:496) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:543) Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:615) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:713) at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:376) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1529) at org.apache.hadoop.ipc.Client.call(Client.java:1452) ... 18 more 2019-06-01 02:20:08,632 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl failed in state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:203) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStart(NodeManager.java:272) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:496) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:543) Caused by: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732) at org.apache.hadoop.ipc.Client.call(Client.java:1480) at org.apache.hadoop.ipc.Client.call(Client.java:1413) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) at com.sun.proxy.$Proxy73.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:68) at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy74.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.registerWithRM(NodeStatusUpdaterImpl.java:271) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:197) ... 6 more Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:615) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:713) at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:376) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1529) at org.apache.hadoop.ipc.Client.call(Client.java:1452) ... 18 more 2019-06-01 02:20:08,638 INFO org.apache.hadoop.service.AbstractService: Service NodeManager failed in state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:203) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStart(NodeManager.java:272) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:496) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:543) Caused by: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732) at org.apache.hadoop.ipc.Client.call(Client.java:1480) at org.apache.hadoop.ipc.Client.call(Client.java:1413) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) at com.sun.proxy.$Proxy73.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:68) at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy74.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.registerWithRM(NodeStatusUpdaterImpl.java:271) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:197) ... 6 more Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:615) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:713) at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:376) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1529) at org.apache.hadoop.ipc.Client.call(Client.java:1452) ... 18 more 2019-06-01 02:20:08,716 INFO org.mortbay.log: Stopped HttpServer2$SelectChannelConnectorWithSafeStartup@0.0.0.0:8042 2019-06-01 02:20:08,727 INFO org.apache.hadoop.ipc.Server: Stopping server on 39863 2019-06-01 02:20:08,742 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 39863 2019-06-01 02:20:08,748 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server Responder 2019-06-01 02:20:08,749 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl: org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl is interrupted. Exiting. 2019-06-01 02:20:08,790 INFO org.apache.hadoop.ipc.Server: Stopping server on 8040 2019-06-01 02:20:08,796 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 8040 2019-06-01 02:20:08,796 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server Responder 2019-06-01 02:20:08,836 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: Public cache exiting 2019-06-01 02:20:08,840 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping NodeManager metrics system... 2019-06-01 02:20:08,842 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NodeManager metrics system stopped. 2019-06-01 02:20:08,843 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NodeManager metrics system shutdown complete. 2019-06-01 02:20:08,843 FATAL org.apache.hadoop.yarn.server.nodemanager.NodeManager: Error starting NodeManager org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:203) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStart(NodeManager.java:272) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:496) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:543) Caused by: java.net.ConnectException: Call From S101/127.0.0.1 to S100:8031 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732) at org.apache.hadoop.ipc.Client.call(Client.java:1480) at org.apache.hadoop.ipc.Client.call(Client.java:1413) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) at com.sun.proxy.$Proxy73.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.api.impl.pb.client.ResourceTrackerPBClientImpl.registerNodeManager(ResourceTrackerPBClientImpl.java:68) at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy74.registerNodeManager(Unknown Source) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.registerWithRM(NodeStatusUpdaterImpl.java:271) at org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.serviceStart(NodeStatusUpdaterImpl.java:197) ... 6 more Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:615) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:713) at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:376) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1529) at org.apache.hadoop.ipc.Client.call(Client.java:1452) ... 18 more 2019-06-01 02:20:08,857 INFO org.apache.hadoop.yarn.server.nodemanager.NodeManager: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NodeManager at S101/127.0.0.1 ************************************************************/ ``` 哪位大佬帮忙看看,小弟先谢过 如下是slaves 的配置 yarn-site.xml ``` <configuration> <property> <name>yarn.resourcemanager.hostname</name> <value>S100</value> </property> <property> <name>yarn.nodemanager.local-dirs</name> <value>/disk1/nm-local-dir,/disk2/nm-local-dir</value> </property> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce.shuffle</value> </property> <property> <name>yarn.nodemanager.resource.memory-mb</name> <value>16384</value> </property> <property> <name>yarn.nodemanager.resource.cpu-vcores</name> <value>16</value> </property> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> <property> <name>yarn.resourcemanager.address</name> <value>S100:8032</value> </property> <property> <name>yarn.resourcemanager.scheduler.address</name> <value>S100:8030</value> </property> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>S100:8031</value> </property> </configuration> ``` core-site.xml ``` <configuration> <property> <name>fs.defaultFS</name> <value>hdfs://S100:8020/</value> </property> </configuration> ```

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Exception in secureMain java.net.UnknownHostException: node1: node1 at java.net.InetAddress.getLocalHost(InetAddress.java:1473) at org.apache.hadoop.security.SecurityUtil.getLocalHostName(SecurityUtil.java:187) at org.apache.hadoop.security.SecurityUtil.login(SecurityUtil.java:207) at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2153) at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202) at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378) at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2402) Caused by: java.net.UnknownHostException: node1 at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1293) at java.net.InetAddress.getLocalHost(InetAddress.java:1469) ... 6 more 2015-01-16 09:08:54,152 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1 2015-01-16 09:08:54,164 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down DataNode at java.net.UnknownHostException: node1: node1 ************************************************************/ 环境ubuntu,hadoop2.6,jdk7 [排比句](http://www.zaojuzi.com/paibiju/ "")部署三台虚拟机一台namenode,两台datanode;/etc/hostname 都已经配置分布为master,node1,node2 /etc/hosts配置为: 27.0.0.1 localhost 127.0.1.1 ubuntu.localdomain ubuntu # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters 192.168.184.129 master 192.168.184.130 node1 192.168.184.131 node2 hadoop/etc/hadoo/slaves配置为[造句](http://www.zaojuzi.com/ ""): node1 node2 core-site.xml配置为: <configuration> <property> <name>fs.defaultFS</name> <value>hdfs://master:9000/</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/home/yangwq/hadoop-2.6.0/temp</value> <description>A base for other temporary directories.</description> </property> </configuration> hdfs-site.xml配置为: <configuration> <property> <name>dfs.replication</name> <value>2</value> </property> <property> <name>dfs.namenode.name.dir</name> <value>file:/home/yangwq/hadoop-2.6.0/dfs/name</value> <final>true</final> </property> <property> <name>dfs.datanode.data.dir</name> <value>file:/home/yangwq/hadoop-2.6.0/dfs/data</value> </property> </configuration> mapred-site.xml配置为: <configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> <final>true</final> </property> </configuration> yarn-site.xml配置为: <configuration> <!-- Site specific YARN configuration properties --> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> <property> <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name> <value>org.apache.hadoop.mapred.ShuffleHandler</value> </property> <!-- resourcemanager hostname或ip地址--> <property> <name>yarn.resourcemanager.hostname</name> <value>master</value> </property> </configuration> 在启动的时候node1节点的datanode一直无法启动,同时通过ssh登录各节点都是正常。

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