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Posted to common-user@hadoop.apache.org by Keith Wiley <kw...@keithwiley.com> on 2012/09/04 19:07:40 UTC

Can't get out of safemode

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
________________________________________________________________________________

Re: Can't get out of safemode

Posted by Keith Wiley <kw...@keithwiley.com>.

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.
> 
> On Fri, Sep 7, 2012 at 1:12 PM, Dino Kečo <di...@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 <ad...@hortonworks.com> wrote:
>>> 
>>> sorry
>>> 
>>> @Keith
>>> 
>>> are you sure your datanodes have reported in?
>>> 
>>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>>>> Hi Serge,
>>>> 
>>>> are you sure your datanodes have reported in ?
>>>> 
>>>> 
>>>> 
>>>> On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>>>> <Se...@nice.com> wrote:
>>>>> Can look in name node logs and post last few lines?
>>>>> 
>>>>> 
>>>>> 
>>>>> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

"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
________________________________________________________________________________

Re: Can't get out of safemode

Posted by Keith Wiley <kw...@keithwiley.com>.

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.
> 
> On Fri, Sep 7, 2012 at 1:12 PM, Dino Kečo <di...@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 <ad...@hortonworks.com> wrote:
>>> 
>>> sorry
>>> 
>>> @Keith
>>> 
>>> are you sure your datanodes have reported in?
>>> 
>>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>>>> Hi Serge,
>>>> 
>>>> are you sure your datanodes have reported in ?
>>>> 
>>>> 
>>>> 
>>>> On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>>>> <Se...@nice.com> wrote:
>>>>> Can look in name node logs and post last few lines?
>>>>> 
>>>>> 
>>>>> 
>>>>> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

"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
________________________________________________________________________________

Re: Can't get out of safemode

Posted by Keith Wiley <kw...@keithwiley.com>.

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.
> 
> On Fri, Sep 7, 2012 at 1:12 PM, Dino Kečo <di...@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 <ad...@hortonworks.com> wrote:
>>> 
>>> sorry
>>> 
>>> @Keith
>>> 
>>> are you sure your datanodes have reported in?
>>> 
>>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>>>> Hi Serge,
>>>> 
>>>> are you sure your datanodes have reported in ?
>>>> 
>>>> 
>>>> 
>>>> On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>>>> <Se...@nice.com> wrote:
>>>>> Can look in name node logs and post last few lines?
>>>>> 
>>>>> 
>>>>> 
>>>>> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

"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
________________________________________________________________________________

Re: Can't get out of safemode

Posted by Keith Wiley <kw...@keithwiley.com>.

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.
> 
> On Fri, Sep 7, 2012 at 1:12 PM, Dino Kečo <di...@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 <ad...@hortonworks.com> wrote:
>>> 
>>> sorry
>>> 
>>> @Keith
>>> 
>>> are you sure your datanodes have reported in?
>>> 
>>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>>>> Hi Serge,
>>>> 
>>>> are you sure your datanodes have reported in ?
>>>> 
>>>> 
>>>> 
>>>> On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>>>> <Se...@nice.com> wrote:
>>>>> Can look in name node logs and post last few lines?
>>>>> 
>>>>> 
>>>>> 
>>>>> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

"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
________________________________________________________________________________

Re: Can't get out of safemode

Posted by Harsh J <ha...@cloudera.com>.

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 <di...@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 <ad...@hortonworks.com> wrote:
>>
>> sorry
>>
>> @Keith
>>
>> are you sure your datanodes have reported in?
>>
>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>> > Hi Serge,
>> >
>> > are you sure your datanodes have reported in ?
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>> > <Se...@nice.com> wrote:
>> >> Can look in name node logs and post last few lines?
>> >>
>> >>
>> >>
>> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

Re: Can't get out of safemode

Posted by Harsh J <ha...@cloudera.com>.

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 <di...@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 <ad...@hortonworks.com> wrote:
>>
>> sorry
>>
>> @Keith
>>
>> are you sure your datanodes have reported in?
>>
>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>> > Hi Serge,
>> >
>> > are you sure your datanodes have reported in ?
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>> > <Se...@nice.com> wrote:
>> >> Can look in name node logs and post last few lines?
>> >>
>> >>
>> >>
>> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

Re: Can't get out of safemode

Posted by Harsh J <ha...@cloudera.com>.

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 <di...@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 <ad...@hortonworks.com> wrote:
>>
>> sorry
>>
>> @Keith
>>
>> are you sure your datanodes have reported in?
>>
>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>> > Hi Serge,
>> >
>> > are you sure your datanodes have reported in ?
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>> > <Se...@nice.com> wrote:
>> >> Can look in name node logs and post last few lines?
>> >>
>> >>
>> >>
>> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

Re: Can't get out of safemode

Posted by Harsh J <ha...@cloudera.com>.

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 <di...@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 <ad...@hortonworks.com> wrote:
>>
>> sorry
>>
>> @Keith
>>
>> are you sure your datanodes have reported in?
>>
>> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
>> > Hi Serge,
>> >
>> > are you sure your datanodes have reported in ?
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
>> > <Se...@nice.com> wrote:
>> >> Can look in name node logs and post last few lines?
>> >>
>> >>
>> >>
>> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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

Re: Can't get out of safemode

Posted by Dino Kečo <di...@gmail.com>.

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 <ad...@hortonworks.com> wrote:

> sorry
>
> @Keith
>
> are you sure your datanodes have reported in?
>
> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
> > Hi Serge,
> >
> > are you sure your datanodes have reported in ?
> >
> >
> >
> >
> >
> >
> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
> > <Se...@nice.com> wrote:
> >> Can look in name node logs and post last few lines?
> >>
> >>
> >>
> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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
>

Re: Can't get out of safemode

Posted by Dino Kečo <di...@gmail.com>.

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 <ad...@hortonworks.com> wrote:

> sorry
>
> @Keith
>
> are you sure your datanodes have reported in?
>
> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
> > Hi Serge,
> >
> > are you sure your datanodes have reported in ?
> >
> >
> >
> >
> >
> >
> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
> > <Se...@nice.com> wrote:
> >> Can look in name node logs and post last few lines?
> >>
> >>
> >>
> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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
>

Re: Can't get out of safemode

Posted by Dino Kečo <di...@gmail.com>.

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 <ad...@hortonworks.com> wrote:

> sorry
>
> @Keith
>
> are you sure your datanodes have reported in?
>
> On Thu, Sep 6, 2012 at 3:12 PM, Adam Brown <ad...@hortonworks.com> wrote:
> > Hi Serge,
> >
> > are you sure your datanodes have reported in ?
> >
> >
> >
> >
> >
> >
> > On Tue, Sep 4, 2012 at 10:10 AM, Serge Blazhiyevskyy
> > <Se...@nice.com> wrote:
> >> Can look in name node logs and post last few lines?
> >>
> >>
> >>
> >> On 9/4/12 10:07 AM, "Keith Wiley" <kw...@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
>