hadoop启动报错

Question

Starting namenodes on [node1]
Last login: Sun Dec 26 22:45:44 CST 2021 on pts/0
node1: ERROR: Cannot set priority of namenode process 38027
Starting datanodes
Last login: Sun Dec 26 22:53:23 CST 2021 on pts/0
node1: ERROR: Cannot set priority of datanode process 38152
node2: ERROR: Cannot set priority of datanode process 24865
Starting secondary namenodes [node1  ]
Last login: Sun Dec 26 22:53:25 CST 2021 on pts/0
node1: ERROR: Cannot set priority of secondarynamenode process 38317

启动总是报错，node1为主，node2，node3为从。
启动报错node1\node2的jps只有jps
node3的jps

 

Answer 1

您这个问题是没有正常启动导致的呢，如果方便的话贴一下hadoop/log/里面的hdfs相关日志呢，方便解决问题呢

我之前也做过和您这个相关的实验，您可以参考一下呢：

hdfs集群安装（单namenode和HA模式）_从大数据到人工智能的博客-CSDN博客 单namenode节点准备文件下载：jdk-8u241-linux-x64.tar.gzhadoop-3.2.0.tar.gz节点安排：hadoop1 → 从节点hadoop2 → 主节点首先确保hadoop1能够免密登录hadoop1以及hadoop2将文件下载到/data目录下，并解压、建立软连接，最终状态如下：修改配置hadoop相关配置修改core-site.xml<configuration><property> https://lrting-top.blog.csdn.net/article/details/120424314