Hi If your intension is controlling the number of attempts every task make, then the property to be tweaked is
mapred.map.max.attempts The default value is 4, for no map task re attempts make it 1. Regards Bejoy KS Sent from handheld, please excuse typos. -----Original Message----- From: Jagat Singh <jagatsi...@gmail.com> Date: Tue, 12 Jun 2012 17:13:36 To: <common-user@hadoop.apache.org> Reply-To: common-user@hadoop.apache.org Subject: Re: set the mapred.map.tasks.speculative.execution=false, but it is not useful. Besides Speculative execution , Tasks can be attempted multiple times due to failures. So you can see 3 attempt there. On Tue, Jun 12, 2012 at 5:08 PM, 林育智 <mylinyu...@gmail.com> wrote: > hi all: > I set the mapred.map.tasks.speculative.execution=false,but in the > userlogs,you could found 3 attempt map task's log. have i miss something? > expect your help. thanks. >
