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From Jakob Homan <jho...@yahoo-inc.com>
Subject Re: HDFS-758 in Hadoop-21 , Updates to Namenode health page
Date Wed, 25 Nov 2009 19:31:08 GMT
+1. Backporting this does not in any way impact the release of 21.
-Jakob
Hairong Kuang wrote:
> +1. Although this is a new feature, I'd like to have it committed to 0.21
> since we have so many issues with delayed decomission recently.
> 
> Hairong 
> 
> 
> On 11/24/09 6:06 PM, "Suresh Srinivas" <sureshms@yahoo-inc.com> wrote:
> 
>> +1. This will also help debug the issues when decommissioning takes a long
>> time to complete.
>>
>>
>> On 11/23/09 7:36 PM, "Jitendra Nath Pandey" <jitendra@yahoo-inc.com> wrote:
>>
>>
>>
>>> Hi,
>>>>    We will be committing some changes to the Namenode Health page
>>>> (dfshealth.jsp) as part of the fix in HDFS-758. This will enable us to
>>>> monitor the progress of decommissioning of datanodes more effectively.
>>>>    Summary of changes :
>>>>    1. A new link on the page for Decommissioning nodes.
>>>>    2. This link will point to a new page with details about decommissioning
>>>> status for each node which include
>>>>         a) Number of under-relplicated blocks in the node.
>>>>         b) Number of blocks with only no live replica (i.e. All its replicas
>>>> are on decommissioning nodes).
>>>>         c) Number of under-replicated blocks in open files.
>>>>        d) Time since decommissioning started.
>>>>    3. The main page will also contain total number of under-replicated
>>>> blocks
>>>> in the cluster.
>>>>
>>>> Thanks
>>>> jitendra
>>
> 


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