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MapReduce, mail # user - Re: Removing Dead Nodes from Cluster


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Re: Removing Dead Nodes from Cluster
Bing Jiang 2013-08-19, 11:13
Firstly, edit hdfs-site.xml;
hdfs-site.xml:
  <property>
    <name>dfs.hosts.exclude</name>
    <value>/path/to/exclude_dn_list</value>
  </property>

Then,
hdfs dfsadmin -refreshNodes
2013/8/19 Manickam P <[EMAIL PROTECTED]>

> Hello,
>
> I have a hadoop cluster setup with 1 master node and 6 data nodes. I have
> set the replication factor as 2 in hadoop. Currently due to some hardware
> issue i have lost 2 data nodes.
> If i remove the dead nodes from the cluster can i get all the data from
> rest of the nodes since i have the replication factor as 2 here?
>
> Please tell me the steps to remove the dead nodes from the cluster.
>
>
> Thanks,
> Manickam P
>

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Bing Jiang
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Focus on distributed computing, HDFS/HBase