FAQ
Hi,
       I create a EC2 instance ubuntu 12.4AMI on Amazon, and installed
CDH4. Now I have added this node into an existing cluster. But when I
failed to start the hdfs service on this new datanode through Cloudera
Manager WebUI. the port 50010 was not used in this instance.

I also tried the user 'ubuntu' and the user 'root' to tun the command:
$ service hadoop-hdfs-datanode start
hadoop-hdfs-datanode: unrecognized service


------------------------CM WebUI
Error------------------------------------------------------
Command 'Start' failed for service 'hdfs1'

2013-07-20 02:08:31,115 FATAL
org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
java.net.BindException: Problem binding to
[ec2-XXX-XXX-XXX-XXX.amazonaws.com:50010] java.net.BindException:
Cannot assign requested address; For more details see:
http://wiki.apache.org/hadoop/BindException

root@/home/ubuntu# netstat -a -t --numeric-ports -p
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address
State PID/Program name
tcp 0 0 172.31.29.149:9000 0.0.0.0:*
LISTEN 832/python
tcp 0 0 127.0.0.1:9001 0.0.0.0:*
LISTEN 852/python
tcp 0 0 0.0.0.0:22 0.0.0.0:*
LISTEN 649/sshd
tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN 785/postgres
tcp 0 288 172.31.29.149:22 128.111.106.224:54639
ESTABLISHED 1663/sshd: ubuntu [
tcp 0 0 127.0.0.1:9001 127.0.0.1:48293
ESTABLISHED 852/python
tcp 0 0 172.31.29.149:58613 128.111.234.47:7182
ESTABLISHED 832/python
tcp 0 0 127.0.0.1:48293 127.0.0.1:9001
ESTABLISHED 832/python
tcp6 0 0 :::22 :::*
LISTEN 649/sshd


Thanks,
Song

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postedJul 20, '13 at 2:23a
activeJul 21, '13 at 12:13a
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