Taiwan Hadoop Forum

Namenode works fine, anyone has same experience before ?

Not sure. We install CDH4.7 (with Hadoop 2.0) and CDH 5.3.1 ( with Hadoop 2.5.0 ) on CentOS 6.5 and RHEL 6.
Everything is fine.

Is there any error message ?

- Jazz

I installed Hadoop 2.6 on Ubuntun with Oracle JDK 1.8, it works fine.

No special error message, just when I run start-dfs.sh, when It goes to start DataNode, the script doesnt even ask me for SSH password ( it asked SSH password for NameNode and SecondNamenade)

bash-4.1$ jps
6705 SecondaryNameNode
6298 NameNode
7487 Jps

Also I tried Hadoop 2.7 with Oracle JDK 1.8 on on Redhat 6.5 today, same issue, maybe its related to the OS ?

Got this error always, while people told me we can ignore it, its due to 32bit hadoop on 64bit OS

15/10/25 23:18:36 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

it turns out that port 50010 is taken by other application, that's why datanode wont start