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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

Question Posted / vijay


Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?..

Answer / Sahil Makkar

If a task fails in a MapReduce job, Hadoop's task tracking system will detect this failure and reschedule the task on another TaskTracker node or even the same node if it becomes available. The default behavior is to run the failed task up to 8 times before giving up.

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