但是,我无法连接到HDFS.

当我执行此命令时：

./hadoop fs -ls /

我得到的目录列表就像我应该的那样.

但是,当我执行此命令时：

./hadoop fs -ls hdfs://localhost/

我明白了：

12/08/23 15:29:58 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 0 time(s).
12/08/23 15:29:59 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 1 time(s).
12/08/23 15:30:00 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 2 time(s).
12/08/23 15:30:01 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 3 time(s).
12/08/23 15:30:02 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 4 time(s).
12/08/23 15:30:03 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 5 time(s).
12/08/23 15:30:04 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 6 time(s).
12/08/23 15:30:05 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 7 time(s).
12/08/23 15:30:06 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 8 time(s).
12/08/23 15:30:07 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 9 time(s).
ls: Call to localhost/127.0.0.1:8020 Failed on connection exception: java.net.ConnectException: Connection refused

如果我在这里浏览：

http://localhost:50070/dfshealth.jsp

我得到了NameNode系统健康页面,就像我应该的那样.但是,如果我按照“浏览文件系统”链接,我相信这里：

http://localhost:50070/nn_browsedfscontent.jsp

我从Jetty获得了404页面.

不知道这两件事是否相关,但这肯定会阻止我.我正在尝试按照here概述的伪分布式模式设置hbase,但我不能,因为hbase无法连接到端口8020上的hdfs.

信息

我在CENTOS 6.2上运行hadoop .20和hbase .90.6.

Hadoop和hbase从我编写的init.d脚本开始启动.

Hadoop在hadoop用户下运行,位于/ opt / hadoop中.在hadoop init.d脚本中,我使用daemon命令执行start-all.sh.

HBase在root下运行,位于/ opt / hbase中.在hbase init.d脚本中,我执行start-hbase.sh脚本.目前我在独立模式下运行HBase.