On Nov 25, 2009, at 12:46 PM, Allen Wittenauer wrote:
Then you'll have no issues patching other things in 0.21 that
are actual
bug fixes that also meet this criteria, right? Or does this only
apply to
things that Yahoo! is hitting/deemed worthy?
Allen raises a good point that the rest of the community may not need
some of the features that Yahoo
finds useful internally. It may clutter Hadoop unnecessarily.
Most of these admin GUI improvements are pluggable.
Perhaps this particular plugin did not even need to go into trunk. It
could have been made available as a separate downloadable or
contrib module. This way folks can use it across releases and only if
they need it.
Further, there are a few new GUI improvements in the hadoop community
that are proprietary - we should make it easier to create new admin
plugins easily. This way users can create new plugins that are useful
to them internally; it also allows companies to create proprietary
plugins for their customers.
sanjay
On 11/25/09 12:03 PM, "Tsz Wo (Nicholas), Sze" <s29752-hadoop...@yahoo.com
>
wrote:
> +1 on committing it to 0.21
>
> I also agree that it does not impact the 0.21 release since the
patch is
> already done. The argument of not committing it to 0.21 would be
either (1)
> the patch is not safe, or (2) the patch is not that useful. I
don't see they
> are the cases here.
>
> Nicholas Sze
>
>
>
>
> ----- Original Message ----
>> From: Jakob Homan <jho...@yahoo-inc.com>
>> To: common-dev@hadoop.apache.org
>> Sent: Wed, November 25, 2009 11:31:08 AM
>> Subject: Re: HDFS-758 in Hadoop-21 , Updates to Namenode health
page
>>
>> +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" 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" 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
>>>>
>>>
>
