hadoop 启动报错了，网上实在查不到为什么了。。。。。

[qqfly1to19]

chaiying0@ubuntu:~$ /home/hadoop/hadoop-0.20.2/bin/start-all.sh
starting namenode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-namenode-ubuntu.out
/home/hadoop/hadoop-0.20.2/bin/hadoop-daemon.sh: line 117: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-namenode-ubuntu.out: Permission denied
head: cannot open `/home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-namenode-ubuntu.out' for reading: No such file or directory
localhost: starting datanode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-datanode-ubuntu.out
localhost: /home/hadoop/hadoop-0.20.2/bin/hadoop-daemon.sh: line 117: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-datanode-ubuntu.out: Permission denied
localhost: head: cannot open `/home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-datanode-ubuntu.out' for reading: No such file or directory
localhost: starting secondarynamenode, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-secondarynamenode-ubuntu.out
localhost: /home/hadoop/hadoop-0.20.2/bin/hadoop-daemon.sh: line 117: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-secondarynamenode-ubuntu.out: Permission denied
localhost: head: cannot open `/home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-secondarynamenode-ubuntu.out' for reading: No such file or directory
starting jobtracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-jobtracker-ubuntu.out
/home/hadoop/hadoop-0.20.2/bin/hadoop-daemon.sh: line 117: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-jobtracker-ubuntu.out: Permission denied
head: cannot open `/home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-jobtracker-ubuntu.out' for reading: No such file or directory
localhost: starting tasktracker, logging to /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-tasktracker-ubuntu.out
localhost: /home/hadoop/hadoop-0.20.2/bin/hadoop-daemon.sh: line 117: /home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-tasktracker-ubuntu.out: Permission denied
localhost: head: cannot open `/home/hadoop/hadoop-0.20.2/bin/../logs/hadoop-chaiying0-tasktracker-ubuntu.out' for reading: No such file or directory

感觉里面有两个错误，一个是permission denied，另一个是no such file or directory。请问怎么解决啊各位大大

[qqfly1to19]

大哥大姐们快来看！

[qqfly1to19]

着急啊。。。各位大大帮帮忙啊。。。

[yezidetianshi]

你可以试着先 停下服务。
然后hadoop namenode -format
格前先删除tmp下面的所有文件，（包括data节点）。

[西溪晨风]

SSH配置好了么？

[liutengfeigo]

datatmp 跟nametmp 目录都设置一下.别用默认的.

[askters]

应该是用户问题，你讲chaiying0切换到hadoop用户在试试，你chaiying0访问hadoop用户下的文件肯定是没有权限的

[huangyu119]

这个问题很清楚。是你当前用户没有打开 hadoop下的logs 文件。你可以使用 ls -al 查看一下，logs文件的权限应该不属于当前用户。 so 你需要使用 sudo chown chaiying0:chaiying0 logs 命令 来赋予当前用户 chaiying0权限。