How Jobtrakcer stores Tasktrackers Information

  Friends,     I want to know, how Jobtracker stores information about tasktracker & their tasks?        is it stored in memory or is it stored in file?     If anyone knows it, please let me know it   Thanks & Regards, Mohmmadanis Moulavi

Fw: Tasktrackers Information

  Friends,     I want to know, how Jobtracker stores information about tasktracker & their tasks?   and also where does Jobtracker store this information?, if anyone know about this, please let me know it.   Thanks & Regards, Mohmmadanis Moulavi Student, MTech (

maven for hadoop

Hi all, How to create maven local repository for hadoop. I want to work with ant to build the code on  machine which has proxy, what I can i do for it? please reply   Thanks & Regards, Mohmmadanis Moulavi

resheduling of job after killing of tasktraker

  after how much time interval, the jobtracker reschedules the task on other node when tasktracker lost, and it depends on which parameter.   Thanks & Regards, Mohmmadanis Moulavi

building hadoop

Friends, I have modified the source program of hadoop, and i want to build it using  "ant"  but it's not working . I use the following command ant -Doffline=true -Dresolvers=internal the ouput of this command looks like as follows: clover.setup: clover.info: [echo] [echo] 

source code of hadoop 0.20.2

Friends, Where can i find the source code of hadoop 0.20.2 version, i specifically want the source code of jobtracker. I am using hadoop which comes along with the nutch-1.2. Reagrds, Mohmmadanis Moualvi

Tasktracker & Jobtracker

Hello friends, I want to know, Suppose if tasktracker goes down, or I stopeed the tasktracker, then can Jobtrakcer waits until it comes up. Please let me know it. Regards, Mohmmadanis Moulavi

Re: how to start tasktracker only on single port

w instances, not replacements. Older instances are cleaned away after they time out. On 14-Nov-2011, at 1:09 PM, mohmmadanis moulavi wrote: > Hello, > > > > Friends I am using Hadoop 0.20.2 version, > My problem is whenever I kill the tasktracker and start it again, jobtrakcer sh

Re: how to start tasktracker only on single port

yeah, I mean kill as stop tasktracker. - Original Message - From: Alexander C.H. Lorenz To: common-user@hadoop.apache.org; mohmmadanis moulavi Cc: Sent: Monday, 14 November 2011 1:16 PM Subject: Re: how to start tasktracker only on single port Hi, please explain the reason to kill

how to start tasktracker only on single port

stop sending the heartbeats, but when I again start tasktracker, It should start again sending  heartbeats, i.e it should start that tasktrakcer on same port as that of before, what changes should I made in configuration parameters for that, please let me know it Thanks & Regads, Mohmmadanis Moulavi