怀疑是cdhmanager的key knowhosts问题 导致cdhmanager和cdhslave2 都无法agent正常上报
稍后要出详细报告.
一些技术点可以记录下来:
cdhmanager 的进程如何彻底关闭 ps aux | grep cm-5 | awk '{print $2}' | xargs -i kill -9 {} 如何重置一个节点 # 如果是agent, rm -rf /opt/cm-5.5.0 # 如果是master, 在agent之外,还要清空数据库 drop database cm; create database cm DEFAULT CHARSET utf8 COLLATE utf8_general_ci; grant all privileges on cm.* to 'scm'@'%' identified by 'scm'; flush privileges; grant all privileges on cm.* to 'scm'@'localhost' identified by 'scm'; flush privileges; agent重启 /opt/cm-5.5.0/etc/init.d/cloudera-scm-server restart ; tail -fn 400 /opt/cm-5.5.0/log/cloudera-scm-server/cloudera-scm-server.log server 重启 /opt/cm-5.5.0/etc/init.d/cloudera-scm-agent restart ; tail -fn 400 /opt/cm-5.5.0/log/cloudera-scm-agent/cloudera-scm-agent.log 战火欣赏下面的俩服务器就是没有了心跳了.
