hadoop cannot 的相关内容

文章 2023-11-27 来自：开发者社区

关于hadoop报错ERROR: Cannot set priority of namenode process与jps仅有自身的某类解决办法

运行start-sh.all发现了如图的问题也是搞了很久搜了很多教程，发现很多人并不是大毛病而是很多小细节出了错误。首先检查如下hadoop-env.sh ，core-site.xml ，hdfs-site.xml ，mapred-site.xml ，yarn-site.xml内容是否有配置错误下图这种明显的错误一定要注意 “-”不要用错符号若均正确（真的要很仔细的去看）进入 /etc/prof....

文章 2023-10-09 来自：开发者社区

【hadoop】解决Datanode denied communication with namenode because hostname cannot be resolved

一、问题背景：发现hadoop集群里4个节点的数据不均衡，通过查询datanode日志发现具体报错如下：ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for Block pool BP-64296 6697-10.180.200.21-1692629878350 (Datan...

文章 2023-07-25 来自：开发者社区

【hadoop】解决：Datanode denied communication with namenode because hostname cannot be resolve

今天在搭建hadoop环境时，出现了个奇葩的现象：4个节点的hadoop集群，我将 ssb 1T的数据集使用 -put 命令上传到hdfs，结果，一共4个节点，所有数据全往1个节点薅！每个节点1T的存储，上传过程中，3个节点存储量一点没办，另外1个节点存储占用，蹭蹭蹭往上涨！通过网上的信息，尝试过使用均衡器（balancer），然而并没有什么用。最后回归debug最朴素的方法：查日志由于是数据存....

文章 2023-05-17 来自：开发者社区

【hadoop】解决java.io.IOException: Cannot run program "bash"

一、问题详情环境说明JDK版本：19hadoop版本: 3.2.2操作系统版本: centos 7.6描述今天在部署hadoop的时候，在执行 start-dfs.sh 遇到下面的问题，提示我 Cannot run program "bash"，我心里一纳闷，这是linux系统，bash 会执行不了？2023-04-02 05:19:05,423 ERROR org.apache.hadoop.....

文章 2014-01-21 来自：开发者社区

org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /user/hive/warehouse/page_view. Name node is in safe mode

FAILED: Error in metadata: MetaException(message:Got exception: org.apache.hadoop.ipc.RemoteException org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /user/hive/ware....

文章 2013-06-20 来自：开发者社区

org.apache.hadoop.dfs.SafeModeException: Cannot create ***. Name node is in safe mode的解决

解决方案：关闭hadoop NameNode的安全模式就行了。 bin/hadoop dfsadmin -safemode leave

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