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Posted to mapreduce-user@hadoop.apache.org by ch huang <ju...@gmail.com> on 2014/05/29 02:34:42 UTC
how to save dead node when it's disk is full?
hi,maillist:
one of my datanode is full ,so dead in cluster ,how can i
do to let it live again?
Re: how to save dead node when it's disk is full?
Posted by Shumin Guo <gs...@gmail.com>.
If the datanode is dead, block replications will be re-replicated on other
datanodes automatically. So, after a while, when those blocks have been
re-replicated, you should be able to delete the data on the dead nodes and
restart it. Here, I am assuming your cluster have enough space on other
live nodes for the block replications.
On Wed, May 28, 2014 at 7:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by ch huang <ju...@gmail.com>.
thanks for reply ,but my situaction is different , all the dead node disk
is full,i can not move data to another empty disk
On Thu, May 29, 2014 at 8:55 AM, Ted Yu <yu...@gmail.com> wrote:
> Cycling old bits:
>
> http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
>
>
> On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
>
>> hi,maillist:
>> one of my datanode is full ,so dead in cluster ,how can
>> i do to let it live again?
>>
>
>
Re: how to save dead node when it's disk is full?
Posted by ch huang <ju...@gmail.com>.
thanks for reply ,but my situaction is different , all the dead node disk
is full,i can not move data to another empty disk
On Thu, May 29, 2014 at 8:55 AM, Ted Yu <yu...@gmail.com> wrote:
> Cycling old bits:
>
> http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
>
>
> On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
>
>> hi,maillist:
>> one of my datanode is full ,so dead in cluster ,how can
>> i do to let it live again?
>>
>
>
Re: how to save dead node when it's disk is full?
Posted by ch huang <ju...@gmail.com>.
thanks for reply ,but my situaction is different , all the dead node disk
is full,i can not move data to another empty disk
On Thu, May 29, 2014 at 8:55 AM, Ted Yu <yu...@gmail.com> wrote:
> Cycling old bits:
>
> http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
>
>
> On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
>
>> hi,maillist:
>> one of my datanode is full ,so dead in cluster ,how can
>> i do to let it live again?
>>
>
>
Re: how to save dead node when it's disk is full?
Posted by ch huang <ju...@gmail.com>.
thanks for reply ,but my situaction is different , all the dead node disk
is full,i can not move data to another empty disk
On Thu, May 29, 2014 at 8:55 AM, Ted Yu <yu...@gmail.com> wrote:
> Cycling old bits:
>
> http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
>
>
> On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
>
>> hi,maillist:
>> one of my datanode is full ,so dead in cluster ,how can
>> i do to let it live again?
>>
>
>
Re: how to save dead node when it's disk is full?
Posted by Ted Yu <yu...@gmail.com>.
Cycling old bits:
http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Shumin Guo <gs...@gmail.com>.
If the datanode is dead, block replications will be re-replicated on other
datanodes automatically. So, after a while, when those blocks have been
re-replicated, you should be able to delete the data on the dead nodes and
restart it. Here, I am assuming your cluster have enough space on other
live nodes for the block replications.
On Wed, May 28, 2014 at 7:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Ted Yu <yu...@gmail.com>.
Cycling old bits:
http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Shumin Guo <gs...@gmail.com>.
If the datanode is dead, block replications will be re-replicated on other
datanodes automatically. So, after a while, when those blocks have been
re-replicated, you should be able to delete the data on the dead nodes and
restart it. Here, I am assuming your cluster have enough space on other
live nodes for the block replications.
On Wed, May 28, 2014 at 7:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Ted Yu <yu...@gmail.com>.
Cycling old bits:
http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Ted Yu <yu...@gmail.com>.
Cycling old bits:
http://search-hadoop.com/m/uMDyU1bxBJS/datanode+disk+full&subj=Re+Disk+on+data+node+full
On Wed, May 28, 2014 at 5:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>
Re: how to save dead node when it's disk is full?
Posted by Shumin Guo <gs...@gmail.com>.
If the datanode is dead, block replications will be re-replicated on other
datanodes automatically. So, after a while, when those blocks have been
re-replicated, you should be able to delete the data on the dead nodes and
restart it. Here, I am assuming your cluster have enough space on other
live nodes for the block replications.
On Wed, May 28, 2014 at 7:34 PM, ch huang <ju...@gmail.com> wrote:
> hi,maillist:
> one of my datanode is full ,so dead in cluster ,how can i
> do to let it live again?
>