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MapReduce >> mail # user >> Re: Map Task Capacity Not Changing


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James Warren 2011-12-15, 23:37
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Re: Map Task Capacity Not Changing
pid files are there, I checked for running processes with the sameID's
and they all checked out.
--Joey
On Fri, Dec 16, 2011 at 5:40 PM, Rahul Jain <[EMAIL PROTECTED]> wrote:
> You might be suffering from HADOOP-7822; I'd suggest you verify your pid
> files and fix the problem by hand if it is the same issue.
>
> -Rahul
>
> On Fri, Dec 16, 2011 at 2:40 PM, Joey Krabacher <[EMAIL PROTECTED]>wrote:
>
>> Turns out my tasktrackers(on the datanodes) are not starting properly....
>>
>> so I guess they are taking some alternate route??
>>
>> because they are up and running...even though when I run
>> stop-mapred.sh it says "data01: no tasktracker to stop"
>>
>> --Joey
>>
>> On Thu, Dec 15, 2011 at 5:37 PM, James Warren
>> <[EMAIL PROTECTED]> wrote:
>> > (moving to mapreduce-user@, bcc'ing common-user@)
>> >
>> > Hi Joey -
>> >
>> > You'll want to change the value on all of your servers running
>> tasktrackers
>> > and then restart each tasktracker to reread the configuration.
>> >
>> > cheers,
>> > -James
>> >
>> > On Thu, Dec 15, 2011 at 3:30 PM, Joey Krabacher <[EMAIL PROTECTED]
>> >wrote:
>> >
>> >> I have looked up how to up this value on the web and have tried all
>> >> suggestions to no avail.
>> >>
>> >> Any help would be great.
>> >>
>> >> Here is some background:
>> >>
>> >> Version: 0.20.2, r911707
>> >> Compiled: Fri Feb 19 08:07:34 UTC 2010 by chrisdo
>> >>
>> >> Nodes: 5
>> >> Current Map Task Capacity : 10  <--- this is what I want to increase.
>> >>
>> >> What I have tried :
>> >>
>> >> Adding
>> >>   <property>
>> >>    <name>mapred.tasktracker.map.tasks.maximum</name>
>> >>    <value>8</value>
>> >>    <final>true</final>
>> >>  </property>
>> >> to mapred-site.xml on NameNode.  I also added this to one of the
>> >> datanodes for the hell of it and that didn't work either.
>> >>
>> >> Thanks.
>> >>
>>
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Joey Krabacher 2011-12-29, 16:32