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From Harsh J <ha...@cloudera.com>
Subject Re: Can't get out of safemode
Date Fri, 07 Sep 2012 15:31:56 GMT
The issue was that Keith's NN was out of resources (low disk space)
and that forced the NN into safemode. This was detected on another
thread from him.

On Fri, Sep 7, 2012 at 1:12 PM, Dino Kečo <dino.keco@gmail.com> wrote:
> Hi Keith,
>
> I was having same problem on my small cluster and some blocks where missing
> on DFS. I have used this command
>
> hadoop dfsadmin -safemode leave
>
> and after that i have run dfs disk check to see which files are corrupted.
>
> Hope this helps,
> Dino Kečo
> msn: xdinno@hotmail.com
> mail: dino.keco@gmail.com
> skype: dino.keco
> phone: +387 61 507 851
>
>
> On Fri, Sep 7, 2012 at 12:13 AM, Adam Brown <adam@hortonworks.com> wrote:
>>
>> sorry
>>
>> @Keith
>>
>> are you sure your datanodes have reported in?
>>
>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <adam@hortonworks.com> wrote:
>> > Hi Serge,
>> >
>> > are you sure your datanodes have reported in ?
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>> > <Serge.Blazhiyevskyy@nice.com> wrote:
>> >> Can look in name node logs and post last few lines?
>> >>
>> >>
>> >>
>> >> On 9/4/12 10:07 AM, "Keith Wiley" <kwiley@keithwiley.com> wrote:
>> >>
>> >>>Observe:
>> >>>
>> >>>~/ $ hd fs -put test /test
>> >>>put: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot
>> >>>create file/test. Name node is in safe mode.
>> >>>~/ $ hadoop dfsadmin -safemode leave
>> >>>Safe mode is OFF
>> >>>~/ $ hadoop dfsadmin -safemode get
>> >>>Safe mode is ON
>> >>>~/ $ hadoop dfsadmin -safemode leave
>> >>>Safe mode is OFF
>> >>>~/ $ hadoop dfsadmin -safemode get
>> >>>Safe mode is ON
>> >>>~/ $ hd fs -put test /test
>> >>>put: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot
>> >>>create file/test. Name node is in safe mode.
>> >>>~/ $
>> >>>
>> >>>Grrr!
>> >>>
>>
>> >>> >>>__________________________________________________________________________
>> >>>______
>> >>>Keith Wiley     kwiley@keithwiley.com     keithwiley.com
>> >>>music.keithwiley.com
>> >>>
>> >>>"I do not feel obliged to believe that the same God who has endowed us
>> >>>with
>> >>>sense, reason, and intellect has intended us to forgo their use."
>> >>>                                           --  Galileo Galilei
>>
>> >>> >>>__________________________________________________________________________
>> >>>______
>> >>>
>> >>
>> >
>> >
>> >
>> > --
>> > Adam Brown
>> > Enablement Engineer
>> > Hortonworks
>>
>>
>>
>> --
>> Adam Brown
>> Enablement Engineer
>> Hortonworks
>
>



-- 
Harsh J

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