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Posted to user@hadoop.apache.org by navaz <na...@gmail.com> on 2014/01/03 17:47:56 UTC

How to remove slave nodes?

How to remove one of the slave node. ?

I have a namenode ( master) and 3 datanode (slave) running. I would like to
remove one of the problematic datanode. How can i do this?

Unfortunately i dont have access to that problematic data node.

Thanks
Navaz

Re: How to remove slave nodes?

Posted by VJ Shalish <vj...@gmail.com>.

R u using Cloudera manager? It would be easy to remove the node using that.


On Sat, Jan 4, 2014 at 11:20 PM, Hardik Pandya <sm...@gmail.com>wrote:

> also you can exclude the data nodes from conf/mapred-site.xml
>
> dfs.hosts/dfs.hosts.exclude List of permitted/excluded DataNodes.If
> necessary, use these files to control the list of allowable datanodes.
>
>
> On Sat, Jan 4, 2014 at 12:37 PM, Hardik Pandya <sm...@gmail.com>wrote:
>
>> You can  start/stop an Hadoop daemon manually on a machine via bin/hadoop-daemon.sh
>> start/stop [namenode | secondarynamenode | datanode | jobtracker |
>> tasktracker]
>>
>>
>> On Fri, Jan 3, 2014 at 11:47 AM, navaz <na...@gmail.com> wrote:
>>
>>> How to remove one of the slave node. ?
>>>
>>> I have a namenode ( master) and 3 datanode (slave) running. I would like
>>> to remove one of the problematic datanode. How can i do this?
>>>
>>> Unfortunately i dont have access to that problematic data node.
>>>
>>> Thanks
>>> Navaz
>>>
>>>
>>
>

Re: How to remove slave nodes?

Posted by VJ Shalish <vj...@gmail.com>.

R u using Cloudera manager? It would be easy to remove the node using that.


On Sat, Jan 4, 2014 at 11:20 PM, Hardik Pandya <sm...@gmail.com>wrote:

> also you can exclude the data nodes from conf/mapred-site.xml
>
> dfs.hosts/dfs.hosts.exclude List of permitted/excluded DataNodes.If
> necessary, use these files to control the list of allowable datanodes.
>
>
> On Sat, Jan 4, 2014 at 12:37 PM, Hardik Pandya <sm...@gmail.com>wrote:
>
>> You can  start/stop an Hadoop daemon manually on a machine via bin/hadoop-daemon.sh
>> start/stop [namenode | secondarynamenode | datanode | jobtracker |
>> tasktracker]
>>
>>
>> On Fri, Jan 3, 2014 at 11:47 AM, navaz <na...@gmail.com> wrote:
>>
>>> How to remove one of the slave node. ?
>>>
>>> I have a namenode ( master) and 3 datanode (slave) running. I would like
>>> to remove one of the problematic datanode. How can i do this?
>>>
>>> Unfortunately i dont have access to that problematic data node.
>>>
>>> Thanks
>>> Navaz
>>>
>>>
>>
>

Re: How to remove slave nodes?

Posted by VJ Shalish <vj...@gmail.com>.

R u using Cloudera manager? It would be easy to remove the node using that.


On Sat, Jan 4, 2014 at 11:20 PM, Hardik Pandya <sm...@gmail.com>wrote:

> also you can exclude the data nodes from conf/mapred-site.xml
>
> dfs.hosts/dfs.hosts.exclude List of permitted/excluded DataNodes.If
> necessary, use these files to control the list of allowable datanodes.
>
>
> On Sat, Jan 4, 2014 at 12:37 PM, Hardik Pandya <sm...@gmail.com>wrote:
>
>> You can  start/stop an Hadoop daemon manually on a machine via bin/hadoop-daemon.sh
>> start/stop [namenode | secondarynamenode | datanode | jobtracker |
>> tasktracker]
>>
>>
>> On Fri, Jan 3, 2014 at 11:47 AM, navaz <na...@gmail.com> wrote:
>>
>>> How to remove one of the slave node. ?
>>>
>>> I have a namenode ( master) and 3 datanode (slave) running. I would like
>>> to remove one of the problematic datanode. How can i do this?
>>>
>>> Unfortunately i dont have access to that problematic data node.
>>>
>>> Thanks
>>> Navaz
>>>
>>>
>>
>