启动或者停止hadoop的时候,信息如下: Stopping namenodes on [hadoop1 hadoop2] The authenticity of host 'hadoop2 (172.17.0.10)' can't be established. ECDSA key fingerprint is SHA256:2L+Ij0z9q1BkINoGu1JVxIoHKwyeJEZXZIVbll0t9fc. ECDSA key fingerprint :5f:a6:::c6:::5c::
在用$HADOOP_HOME/sbin/start-dfs.sh启动HDFS时发现只有NameNode和SecondaryNameNode启动,没有DataNode. 查看logs下的DataNode日志中显示如下错误: WARN org.apache.hadoop.hdfs.server.datanode.DataNode: IOException in offerService java.io.EOFException: End of File Exception between local
1.问题描述 在启动MYSQL时出现问题:"ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (10061)", 情况如图: 2.问题分析 从错误的提示中可以看出MySQL服务没有启动,因此只需要启动MySQL服务就可以了. 3.问题解决 直接采用net start MySQL 就可以启动MySQL服务,但是输入命令后仍然出现错误: 可以看到错误提示:"服务名无效",说明不存在MySQL
在学习struts 2时,为了方便,直接从下载的struts的apps目录下的struts2-blank.war压缩包下的WEB-INF\复制的web.xml,当我启动Tomcat时,发生 java.lang.IllegalArgumentException: <session-config> element is limited to 1 occurrence at org.apache.tomcat.util.descriptor.web.SetSessionConfig.begin(We
1.当启动Tomcat时,出现了如下信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\tools\myeclipse\Common\binary\com.sun.java.jdk.win32.x86_64_1.6.0.013\bin;D:\Progr