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Subject: Re: Can't get out of safemode
From: Keith Wiley <kwiley@keithwiley.com>
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 <CAOcnVr2wJYctS4XMAWN+yO7eQ6Hg=aWoO+JyySzaMC9TAk1Y1A@mail.gmail.com>
Date: Sun, 9 Sep 2012 15:39:12 -0700
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To: user@hadoop.apache.org

Yep, moving the NN to the secondary larger disk seems to have improved =
it.  Thanks again for your great help Harsh (and others).

Cheers!

On Sep 7, 2012, at 08:31 , Harsh J wrote:

> 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.
>=20
> On Fri, Sep 7, 2012 at 1:12 PM, Dino Ke=C4=8Do <dino.keco@gmail.com> =
wrote:
>> Hi Keith,
>>=20
>> I was having same problem on my small cluster and some blocks where =
missing
>> on DFS. I have used this command
>>=20
>> hadoop dfsadmin -safemode leave
>>=20
>> and after that i have run dfs disk check to see which files are =
corrupted.
>>=20
>> Hope this helps,
>> Dino Ke=C4=8Do
>> msn: xdinno@hotmail.com
>> mail: dino.keco@gmail.com
>> skype: dino.keco
>> phone: +387 61 507 851
>>=20
>>=20
>> On Fri, Sep 7, 2012 at 12:13 AM, Adam Brown <adam@hortonworks.com> =
wrote:
>>>=20
>>> sorry
>>>=20
>>> @Keith
>>>=20
>>> are you sure your datanodes have reported in?
>>>=20
>>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <adam@hortonworks.com> =
wrote:
>>>> Hi Serge,
>>>>=20
>>>> are you sure your datanodes have reported in ?
>>>>=20
>>>>=20
>>>>=20
>>>> 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?
>>>>>=20
>>>>>=20
>>>>>=20
>>>>> On 9/4/12 10:07 AM, "Keith Wiley" <kwiley@keithwiley.com> wrote:
>>>>>=20
>>>>>> Observe:
>>>>>>=20
>>>>>> ~/ $ 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.
>>>>>> ~/ $
>>>>>>=20
>>>>>> Grrr!


=
__________________________________________________________________________=
______
Keith Wiley     kwiley@keithwiley.com     keithwiley.com    =
music.keithwiley.com

"Yet mark his perfect self-contentment, and hence learn his lesson, that =
to be
self-contented is to be vile and ignorant, and that to aspire is better =
than to
be blindly and impotently happy."
                                           --  Edwin A. Abbott, Flatland
=
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