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Posted to user@spark.apache.org by Peter Thai <th...@gmail.com> on 2015/02/27 01:10:03 UTC

Non-deterministic Accumulator Values

Hi all,

I'm incrementing several accumulators inside a foreach. Most of the time,
the accumulators will return the same value for the same dataset. However,
they sometimes differ. 

I'm not sure how accumulators are implemented. Could this behavior be caused
by data not arriving before I print out the value of the accumulator? 



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