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Datanode not starting, Hadoop 2.2 on Redhat 6.5
http://forum.hadoop.tw/viewtopic.php?f=4&t=38289
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發表人:  bureaucrat [ 2015-10-21, 17:00 ]
文章主題 :  Datanode not starting, Hadoop 2.2 on Redhat 6.5

Namenode works fine, anyone has same experience before ?

發表人:  jazz [ 2015-10-23, 17:48 ]
文章主題 :  Re: Datanode not starting, Hadoop 2.2 on Redhat 6.5

bureaucrat 寫:
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

發表人:  bureaucrat [ 2015-10-26, 10:52 ]
文章主題 :  Re: Datanode not starting, Hadoop 2.2 on Redhat 6.5

jazz 寫:
bureaucrat 寫:
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

發表人:  bureaucrat [ 2015-10-26, 11:05 ]
文章主題 :  Re: Datanode not starting, Hadoop 2.2 on Redhat 6.5

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 ?

發表人:  bureaucrat [ 2015-10-26, 11:20 ]
文章主題 :  Re: Datanode not starting, Hadoop 2.2 on Redhat 6.5

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

發表人:  bureaucrat [ 2015-10-27, 09:42 ]
文章主題 :  Re: Datanode not starting, Hadoop 2.2 on Redhat 6.5

bureaucrat 寫:
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 ?



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

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