Hi Marco You can disable retries by setting mapred.map.max.attempts and mapred.reduce.max.attempts to 1.
Also if you need to disable speculative execution. You can disable it by setting mapred.map.tasks.speculative.execution and mapred.reduce.tasks.speculative.execution to false. With these two steps you can ensure that a task is attempted only once. These properties to be set in mapred-site.xml or at job level. Regards Bejoy KS Sent from handheld, please excuse typos. -----Original Message----- From: Marco Gallotta <ma...@gallotta.co.za> Date: Thu, 2 Aug 2012 16:52:00 To: <common-user@hadoop.apache.org> Reply-To: common-user@hadoop.apache.org Subject: Disable retries Hi there Is there a way to disable retries when a mapper/reducer fails? I'm writing data in my mapper and I'd rather catch the failure, recover from a backup (fairly lightweight in this case, as the output tables aren't big) and restart. -- Marco Gallotta | Mountain View, California Software Engineer, Infrastructure | Loki Studios fb.me/marco.gallotta | twitter.com/marcog ma...@gallotta.co.za | +1 (650) 417-3313 Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
