Introduction and MapReduce - SNAP - Stanford University
Introduction and MapReduce - SNAP - Stanford University
Introduction and MapReduce - SNAP - Stanford University
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Map worker failure<br />
Map tasks completed or in-progress at worker are<br />
reset to idle<br />
Reduce workers are notified when task is<br />
rescheduled on another worker<br />
Reduce worker failure<br />
Only in-progress tasks are reset to idle<br />
Master failure<br />
<strong>MapReduce</strong> task is aborted <strong>and</strong> client is notified<br />
1/8/2012 Jure Leskovec, <strong>Stanford</strong> CS246: Mining Massive Datasets, http://cs246.stanford.edu 46
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