Hadoop启动报错NoClassDefFoundError: javax/activation/DataSource解决方案

由于需要安装presto345，需要将JDK换成了11+的版本，导致Hadoop集群不能启动ResourceManager和NodeManager

查看日志，发现的如下错误：

Caused by: java.lang.NoClassDefFoundError: javax/activation/DataSource

解决方案：

直接下载activation-1.1.1.jar到lib目录下，或者本地上传到${HADOOP_HOME}/share/hadoop/yarn/lib目录下：

cd ${HADOOP_HOME}/share/hadoop/yarn/lib
wget https://repo1.maven.org/maven2/javax/activation/activation/1.1.1/activation-1.1.1.jar

执行完，重新启动start-yarn.sh

start-yarn.sh

使用jps查看进程：

248979 NodeManager
249456 Jps
245766 DataNode
240026 QuorumPeerMain
245166 NameNode
245421 DFSZKFailoverController
248828 ResourceManager