Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop, mail # user - Help - Rack Topology Script - Hadoop 0.20 (CDH3u1)


Copy link to this message
-
Re: Help - Rack Topology Script - Hadoop 0.20 (CDH3u1)
Joey Echeverria 2011-08-21, 14:22
Not that I know of.

-Joey

On Fri, Aug 19, 2011 at 1:16 PM, modemide <[EMAIL PROTECTED]> wrote:
> Ha, what a silly mistake.
>
> Thank you Joey.
>
> Do you also happen to know of an easier way to tell which racks the
> jobtracker/namenode think each node is in?
>
>
>
> On 8/19/11, Joey Echeverria <[EMAIL PROTECTED]> wrote:
>> Did you restart the JobTracker?
>>
>> -Joey
>>
>> On Fri, Aug 19, 2011 at 12:45 PM, modemide <[EMAIL PROTECTED]> wrote:
>>> Hi all,
>>> I've tried to make a rack topology script.  I've written it in python
>>> and it works if I call it with the following arguments:
>>> 10.2.0.1 10.2.0.11 10.2.0.11 10.2.0.12 10.2.0.21 10.2.0.26  10.2.0.31
>>> 10.2.0.33
>>>
>>> The output is:
>>> /rack0 /rack1 /rack1 /rack1 /rack2 /rack2 /rack3 /rack3
>>> Should the output be on newlines or is any whitespace sufficient?
>>>
>>> Additionally, my cluster's datanodes have DNS names such as:
>>> r1dn02
>>> r2dn05
>>> etc...
>>>
>>> I restarted the namenode in my running cluster (after configuring the
>>> topology script setting in core-site.xml).
>>> I ran a job and checked what the job tracker thinks the rack id's are
>>> and it showed default-rack.
>>> Can anyone tell me what I'm doing wrong?
>>>
>>> Thanks,
>>> tim
>>>
>>
>>
>>
>> --
>> Joseph Echeverria
>> Cloudera, Inc.
>> 443.305.9434
>>
>

--
Joseph Echeverria
Cloudera, Inc.
443.305.9434