mapreduce - Can I rerun failed mappers in EMR -


i woke failed 16h long emr mpareduce job failed because of 'few' mappers timed out.

is there way rerun failed mappers (yes makes sense in specific use case)? how?

too late real-time question. in general - no.

but it's possible. if can take trouble of finding out splits being processed failed mappers (from mapper logs) - , if map-only job - create custom job went after failed splits. hard in general - since splits typically span files.


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