Update the interaction answer summaries continuous job to load answers in the reduce step rather than map since the aggregated lists of answers could exceed the allowed size of stored shard data as part of later steps in the MR pipeline. For large amounts of data, the shuffle hash step would fail with an error that the buffer size was too large for the map value being stored, probably from the VERSION_ALL shards for very large volumes of answers.
Update the interaction answer summaries continuous job to load answers
in the reduce step rather than map since the aggregated lists of
answers could exceed the allowed size of stored shard data as part of later
steps in the MR pipeline. For large amounts of data, the shuffle
hash step would fail with an error that the buffer size was too large for
the map value being stored, probably from the VERSION_ALL shards for
very large volumes of answers.

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