报错了:ssh: connect to host localhost port 22: Connection refused
在执行start-all.sh时报如下的错误:
root@ubuntu:/home/sd1700092/skyone/hadoop-1.2.1/bin# start-all.sh
Warning: $HADOOP_HOME is deprecated.
starting namenode, logging to /home/sd1700092/skyone/hadoop-1.2.1/libexec/../logs/hadoop-root-namenode-ubuntu.out
localhost: ssh: connect to host localhost port 22: Connection refused
localhost: ssh: connect to host localhost port 22: Connection refused
starting jobtracker, logging to /home/sd1700092/skyone/hadoop-1.2.1/libexec/../logs/hadoop-root-jobtracker-ubuntu.out
localhost: ssh: connect to host localhost port 22: Connection refused
有人遇到过么?