[hadoop@cbp1 logs]$ hdfs haadmin -getServiceState nn3 standby [hadoop@cbp1 logs]$ hdfs haadmin -getServiceState nn2 standby [hadoop@cbp1 logs]$ hdfs haadmin -getServiceState nn1 active [hadoop@cbp1 logs]$ vim hadoop-hadoop-namenode-cbp1.chinaoly.com.log [hadoop@cbp1 logs]$ lsof -i:8020 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 15941 hadoop 301u IPv4 151707293 0t0 TCP cbp1.chinaoly.com:intu-ec-svcdisc (LISTEN) java 15941 hadoop 311u IPv4 151711840 0t0 TCP cbp1.chinaoly.com:intu-ec-svcdisc->cbp1.chinaoly.com:37298 (ESTABLISHED) java 15941 hadoop 312u IPv4 151711245 0t0 TCP cbp1.chinaoly.com:intu-ec-svcdisc->cbp3.chinaoly.com:51244 (ESTABLISHED) java 15941 hadoop 313u IPv4 151711247 0t0 TCP cbp1.chinaoly.com:intu-ec-svcdisc->cbp2.chinaoly.com:42308 (ESTABLISHED) java 15941 hadoop 314u IPv4 151711249 0t0 TCP cbp1.chinaoly.com:intu-ec-svcdisc->cbp1.chinaoly.com:37304 (ESTABLISHED) java 16081 hadoop 388u IPv4 151711839 0t0 TCP cbp1.chinaoly.com:38498->cbp2.chinaoly.com:intu-ec-svcdisc (ESTABLISHED) java 16081 hadoop 389u IPv4 151708528 0t0 TCP cbp1.chinaoly.com:37298->cbp1.chinaoly.com:intu-ec-svcdisc (ESTABLISHED) java 16081 hadoop 390u IPv4 151708529 0t0 TCP cbp1.chinaoly.com:46528->cbp3.chinaoly.com:intu-ec-svcdisc (ESTABLISHED) java 16567 hadoop 281u IPv4 151711845 0t0 TCP cbp1.chinaoly.com:37304->cbp1.chinaoly.com:intu-ec-svcdisc (ESTABLISHED) [hadoop@cbp1 logs]$ pwd /home/hadoop/app/hadoop/logs [hadoop@cbp1 logs]$ hdfs haadmin -transitionToActive --forcemanual nn1 namenode状态变更为active