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Posted to common-user@hadoop.apache.org by sandeep <sa...@huawei.com> on 2011/01/06 12:35:01 UTC
How to Achieve TaskTracker Decommission
Hi
Can any one you let me know what command do I need to execute for
Decommissioning TaskTracker?
Datanode decommissioning I have achieved using hadoop dfsadmin
-refreshNodes.
Similar to HDFS is there any command for Mapreduce Decommission.
I have gone through the defect [HADOOP-5643 ] ..but I was unable to find
what command I need to execute.
I have tried ./mapred jobtracker -decommission but not working .
Please help me .
Thanks
sandeep
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RE: How to Achieve TaskTracker Decommission
Posted by sandeep <sa...@huawei.com>.
Thank you Allen :)
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-----Original Message-----
From: Allen Wittenauer [mailto:awittenauer@linkedin.com]
Sent: Thursday, January 06, 2011 10:08 PM
To: <co...@hadoop.apache.org>
Subject: Re: How to Achieve TaskTracker Decommission
On Jan 6, 2011, at 3:35 AM, sandeep wrote:
> Can any one you let me know what command do I need to execute for
> Decommissioning TaskTracker?
mradmin -refreshNodes was added in 0.21.
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Posted by Songting Chen <So...@turn.com>.
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Re: How to Achieve TaskTracker Decommission
Posted by Allen Wittenauer <aw...@linkedin.com>.
On Jan 6, 2011, at 3:35 AM, sandeep wrote:
> Can any one you let me know what command do I need to execute for
> Decommissioning TaskTracker?
mradmin -refreshNodes was added in 0.21.
Re: How to Achieve TaskTracker Decommission
Posted by Adarsh Sharma <ad...@orkash.com>.
sandeep wrote:
>
>
> Hi
>
>
>
> Can any one you let me know what command do I need to execute for
> Decommissioning TaskTracker?
>
>
>
> Datanode decommissioning I have achieved using hadoop dfsadmin
> -refreshNodes.
>
>
>
> Similar to HDFS is there any command for Mapreduce Decommission.
>
>
>
> I have gone through the defect [HADOOP-5643 ] ..but I was unable to find
> what command I need to execute.
>
>
>
> I have tried ./mapred jobtracker -decommission but not working .
>
>
>
There is no command in HDFS like this .
U must specify the hosts to exclude in mapred.hosts.exclude parameter in
mapred.site.xml
And
hadoop dfsadmin -refreshNodes.
is sufficient to do the work.
> Please help me .
>
>
>
> Thanks
>
> sandeep
>
> ****************************************************************************
> ***********
> This e-mail and attachments contain confidential information from HUAWEI,
> which is intended only for the person or entity whose address is listed
> above. Any use of the information contained herein in any way (including,
> but not limited to, total or partial disclosure, reproduction, or
> dissemination) by persons other than the intended recipient's) is
> prohibited. If you receive this e-mail in error, please notify the sender by
> phone or email immediately and delete it!
>
>
>
>
>