1.检查namenode服务器的是否运行正常,我的问题是没有开启hadoop集群出现的. 2.检查namenode服务器的防火墙是否开放的响应端口,一般内网建议关闭.…

INFO ipc.Client: Retrying connect to server: hadoop/192.168.73.100:9000. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) INFO ipc.Client: Retrying connect to server: hadoop/192.168.73.1…

  在Hadoop分布式模式部署完毕后,通过start-dfs.sh启动NameNode.DataNode.SecondaryNameNode,在master节点通过jps命令查看,看到NameNode.SecondaryNameNode已启动,在slave节点通过jps命令查看,DataNode也已经启动.(此时颇为欣喜,首次全然分布式部署即成功,可是...) 1 发现问题   准备好WordCount測试用例所需文件,通过hadoop fs -put file /命令上传文件,发现竟然报错,…

// :: INFO ipc.Client: Retrying connect to server: master/. Already tried , sleepTime= SECONDS) // :: INFO ipc.Client: Retrying connect to server: master/. Already tried , sleepTime= SECONDS) // :: INFO ipc.Client: Retrying connect to server: master/…

程序运行时出现如下问题: 从网上查资料,有说重启format的..有说/etc/hosts出问题的... 反正都试了一遍..还是有这个问题 后来看日志,发现问题是访问服务器9001端口访问不到..开始怀疑自己配置文件有问题.既然是9001,那就肯定是mapred的问题, 看了配置文件内容 <property> <name>mapred.job.tracker</name> <value>http://192.168.254.128:9001</valu…

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刚刚配置hadoop,namenode常开,但datanode但保留了错误.但不启动: 2014-05-04 10:43:33,970 WARNorg.apache.hadoop.hdfs.server.datanode.DataNode: Problem connecting to server:hadoop1/192.168.10.22:9000 2014-05-04 10:43:55,009 INFOorg.apache.hadoop.ipc.Client: Retrying connec…

hadoop使用bin/start_all.sh命令之后,使用jps发现datanode无法启动 This problem comes when Datanode daemon on the system does not start.check the started daemons using "jps" command. If it in not started,start Datanode daemon manually by using the command:bin/had…

hadoop 启动时namenode和datanode可以启动,使用jps命令也可以看到进程,但是在浏览器中输入master:50070却没有显示datanode 查看datanode的log日志: -- ::, INFO org.apache.hadoop.ipc.Client: Retrying connect to server: master/. Already tried  , sleepTime= SECONDS) -- ::, INFO org.apache.hadoop.ipc.…