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From Sandeep Nemuri <nhsande...@gmail.com>
Subject Re: Read namenode data from primary memory
Date Tue, 14 May 2013 07:21:06 GMT
I Agree with you Nitin ..
My Requirement is i want to copy the edits and fsimage from memory for
every 5mins. How does this works ?


On Tue, May 14, 2013 at 12:31 PM, Nitin Pawar <nitinpawar432@gmail.com>wrote:

> if you do not put namenode in safemode that means your namenode can still
> accept request to write or delete files from hdfs. This may cause your
> snapshot to be a problematic in case you want to restore from it. Safemode
> is just an ensuring point that you have a standstill image to snapshot.
>
>
>
>
> On Tue, May 14, 2013 at 12:27 PM, Sandeep Nemuri <nhsandeep6@gmail.com>wrote:
>
>> Withuot going to safemode can't we get the Namespace ??
>>
>>
>> On Tue, May 14, 2013 at 12:18 PM, Ling Kun <lkun.erlv@gmail.com> wrote:
>>
>>> Hi Aditya:
>>>    This command line may help you:
>>>
>>>      hadoop dfsadmin --saveNamespace
>>>
>>>      you should firstly perform it in safe mode.
>>>
>>>     The corresponding design and implementation is described here:
>>> https://issues.apache.org/jira/browse/HADOOP-4826
>>>
>>>
>>> yours,
>>> Ling Kun
>>>
>>>
>>>
>>> On Tue, May 14, 2013 at 2:37 PM, Aditya exalter <adityaexalter@gmail.com
>>> > wrote:
>>>
>>>> Hi,
>>>>
>>>>      How to get the namenode data(edits and fsimage) from the main
>>>> memory(RAM)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> http://www.lingcc.com
>>>
>>
>>
>>
>> --
>> --Regards
>>   Sandeep Nemuri
>>
>
>
>
> --
> Nitin Pawar
>



-- 
--Regards
  Sandeep Nemuri

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