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Posted to user@hbase.apache.org by Andre Reiter <a....@web.de> on 2011/06/22 16:39:42 UTC
adding new node as tasktracker
just added a new node to our cluster like described here
http://wiki.apache.org/hadoop/FAQ#I_have_a_new_node_I_want_to_add_to_a_running_Hadoop_cluster.3B_how_do_I_start_services_on_just_one_node.3F
works just fine, except a minor flaw
on this site
http://jobtracker:50030/machines.jsp?type=active
all task trackers are listed, the first two columns are showing the url and the hostname of the task trackers
our "old" mahines do have proper fally qualified host names, but the new one, for some reason, has just the nacked IP address
why? how is the hostname of the new tasktracker calculated?
regards
andre
Re: adding new node as tasktracker
Posted by Andre Reiter <a....@web.de>.
solved:
reversed lookup, ie: host 192.168.0.1
indeed the reversed lookup did not wotk for the new host, fixed it in the dns server config, now everything is just fine, thanks Stack!
schrieb Andre Reiter:
> Hi Stack,
>
> actually we have an internal DNS server, and we are using dns names, all dns names are resolved properly
> how can i check that the revers lookup gives the same answer as forward lookup?
> andre
>
>
>> ----- Original Message -----
>> From: Stack <st...@duboce.net>
>> Sent: Wed Jun 22 2011 17:03:10 GMT+0200 (CET)
>> To:
>> CC:
>> Subject: Re: adding new node as tasktracker
>
>> Fix your dns so that both forward and reverse lookups give you the same answer.
>> St.Ack
>>
>
>
Re: adding new node as tasktracker
Posted by Andre Reiter <a....@web.de>.
Hi Stack,
actually we have an internal DNS server, and we are using dns names, all dns names are resolved properly
how can i check that the revers lookup gives the same answer as forward lookup?
andre
> ----- Original Message -----
> From: Stack <st...@duboce.net>
> Sent: Wed Jun 22 2011 17:03:10 GMT+0200 (CET)
> To:
> CC:
> Subject: Re: adding new node as tasktracker
> Fix your dns so that both forward and reverse lookups give you the same answer.
> St.Ack
>
Re: adding new node as tasktracker
Posted by Stack <st...@duboce.net>.
Fix your dns so that both forward and reverse lookups give you the same answer.
St.Ack
On Wed, Jun 22, 2011 at 7:39 AM, Andre Reiter <a....@web.de> wrote:
> just added a new node to our cluster like described here
> http://wiki.apache.org/hadoop/FAQ#I_have_a_new_node_I_want_to_add_to_a_running_Hadoop_cluster.3B_how_do_I_start_services_on_just_one_node.3F
>
> works just fine, except a minor flaw
>
> on this site
> http://jobtracker:50030/machines.jsp?type=active
> all task trackers are listed, the first two columns are showing the url and
> the hostname of the task trackers
> our "old" mahines do have proper fally qualified host names, but the new
> one, for some reason, has just the nacked IP address
>
> why? how is the hostname of the new tasktracker calculated?
>
> regards
> andre
>
>
>