今天布置hadoop集群,尝试单独将secondarynamenode分属到一台独立的虚拟机上, 当格式化后,start-dfs.sh.namenode没启动.查看日志.报错例如以下 查看权限才发现,/current/VERSION是隶属root的.须要更改用户. 之后.再start-dfs.sh,依旧提示no [master](网上有人说是hosts下的hostname的问题,可是我核对多次,没有问题), 可是namenode进程确实起开了. 版权声明:本文博客原创文章,博客,未经同意,不得转…

问题描述:Linux虚拟机内使用hadoop 解决方案: $ su 密码:****** # chown hadoop 文件名 进入超级管理员,为hadoop用户分配该文件的权限. 完美解决:…

http://blog.csdn.net/blackiez/article/details/8570395…

报错如下: 300 [main] DEBUG org.apache.hadoop.util.Shell - Failed to detect a valid hadoop home directory java.io.IOException: HADOOP_HOME or hadoop.home.dir are not set 解决办法一: 根据 http://blog.csdn.net/baidu_19473529/article/details/54693523 配置hadoop_home变…

at org.apache.spark.deploy.history.FsHistoryProvider.<init>(FsHistoryProvider.scala:) at org.apache.spark.deploy.history.FsHistoryProvider.<init>(FsHistoryProvider.scala:) ... more Caused by: java.io.FileNotFoundException: File does not exist:…

Sqoop 抽数报错: java.io.FileNotFoundException: File does not exist 一.错误详情 2019-10-17 20:04:49,080 INFO [IPC Server handler 20 on 45158] org.apache.hadoop.mapred.TaskAttemptListenerImpl: Diagnostics report from attempt_1567429685851_474405_m_000001_0: Err…

1.启动kafka的时候,报错如下所示: [-- ::,] INFO zookeeper state changed (SyncConnected) (org.I0Itec.zkclient.ZkClient) [-- ::,] FATAL Fatal error during KafkaServerStable startup. Prepare to shutdown (kafka.server.KafkaServerStartable) java.io.FileNotFoundExcepti…

不多说,直接上干货! 问题详情 查看/var/log/cloudera-scm-server.log的启动日志 问题来源 我在用cloudermanager安装好之后,然后,在对如下. 配置kerberos后,在web界面重启服务ok. 但有一个警告:Cloudera recommends at least Level 1 TLS when Kerberos is enabled for CDH clusters. 设置好上面之后,我再   vim /etc/cloudera-scm-agent…

报错内容 flink执行jar时,报如下错误: org.apache.flink.client.program.ProgramInvocationException: Job failed. (JobID: b67d4b36791bb6d1be532323b4f77162) at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:268) at org.apache.fl…

File file=new File(fileAllName); FileWriter fw=new FileWriter(file); 在Java的 FileWriter 方法时 系统抛出了异常 java.io.FileNotFoundException: D:\xxx\yyy (拒绝访问.)at java.io.FileOutputStream.open(Native Method)at java.io.FileOutputStream.<init>(FileOutputStream.ja…