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Posted to hdfs-user@hadoop.apache.org by ch huang <ju...@gmail.com> on 2013/08/16 04:46:03 UTC
question about hadoop HA
hi,all
i have a question that i can not answer by myself,hope any one can help.
if i do not set up HA,client can query DNS get the hdfs entrance,but if i
set up namenode HA,how client know which host it should talk?
Re: question about hadoop HA
Posted by bharath vissapragada <bh...@gmail.com>.
Client uses the class dfs.client.failover.proxy.provider.[nameservice ID]* *to
find the active namenode. Default is ConfiguredFailOverProxyProvider. You
can plug in your own implementation and specify it in the config file.
Regards,
Bharath .V
w:http://researchweb.iiit.ac.in/~bharath.v
On Fri, Aug 16, 2013 at 8:16 AM, ch huang <ju...@gmail.com> wrote:
> hi,all
> i have a question that i can not answer by myself,hope any one can help.
> if i do not set up HA,client can query DNS get the hdfs entrance,but if i
> set up namenode HA,how client know which host it should talk?
>
>
>
Re: question about hadoop HA
Posted by bharath vissapragada <bh...@gmail.com>.
Client uses the class dfs.client.failover.proxy.provider.[nameservice ID]* *to
find the active namenode. Default is ConfiguredFailOverProxyProvider. You
can plug in your own implementation and specify it in the config file.
Regards,
Bharath .V
w:http://researchweb.iiit.ac.in/~bharath.v
On Fri, Aug 16, 2013 at 8:16 AM, ch huang <ju...@gmail.com> wrote:
> hi,all
> i have a question that i can not answer by myself,hope any one can help.
> if i do not set up HA,client can query DNS get the hdfs entrance,but if i
> set up namenode HA,how client know which host it should talk?
>
>
>
Re: question about hadoop HA
Posted by bharath vissapragada <bh...@gmail.com>.
Client uses the class dfs.client.failover.proxy.provider.[nameservice ID]* *to
find the active namenode. Default is ConfiguredFailOverProxyProvider. You
can plug in your own implementation and specify it in the config file.
Regards,
Bharath .V
w:http://researchweb.iiit.ac.in/~bharath.v
On Fri, Aug 16, 2013 at 8:16 AM, ch huang <ju...@gmail.com> wrote:
> hi,all
> i have a question that i can not answer by myself,hope any one can help.
> if i do not set up HA,client can query DNS get the hdfs entrance,but if i
> set up namenode HA,how client know which host it should talk?
>
>
>
Re: question about hadoop HA
Posted by bharath vissapragada <bh...@gmail.com>.
Client uses the class dfs.client.failover.proxy.provider.[nameservice ID]* *to
find the active namenode. Default is ConfiguredFailOverProxyProvider. You
can plug in your own implementation and specify it in the config file.
Regards,
Bharath .V
w:http://researchweb.iiit.ac.in/~bharath.v
On Fri, Aug 16, 2013 at 8:16 AM, ch huang <ju...@gmail.com> wrote:
> hi,all
> i have a question that i can not answer by myself,hope any one can help.
> if i do not set up HA,client can query DNS get the hdfs entrance,but if i
> set up namenode HA,how client know which host it should talk?
>
>
>