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Sergey Shelukhin commented on HIVE-12547:
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[~jdere] can you comment about the distributed hashjoin
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Sergey Shelukhin commented on HIVE-12547:
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[~mmccline] what do you think? I looked at the code, it
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Matt McCline commented on HIVE-12547:
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That makes sense.
> VectorMapJoinFastBytesHashTable fails
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Sergey Shelukhin commented on HIVE-12547:
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Actually, I wonder how we get into this situation. It's
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Matt McCline commented on HIVE-12547:
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At the time I wrote it I was using long to hold the hash code
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Matt McCline commented on HIVE-12547:
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(HIVE-12492 MapJoin: 4 million unique integers seems to be a
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Sergey Shelukhin commented on HIVE-12547:
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Why? Otherwise, we get query failures and the only
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Matt McCline commented on HIVE-12547:
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2 parallel arrays means a double CPU Data Cache miss.
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Sergey Shelukhin commented on HIVE-12547:
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Beats query failures in my book :P Also, these would be
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Matt McCline commented on HIVE-12547:
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I want to make sure the 99% normal case when we aren't creating
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Sergey Shelukhin commented on HIVE-12547:
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Well, that's a separate problem. For this JIRA, I think
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Matt McCline commented on HIVE-12547:
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No I don't think we should do that.
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Sergey Shelukhin commented on HIVE-12547:
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[~mmccline] is there a reason why 3 longs are used per
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Sergey Shelukhin commented on HIVE-12547:
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It's probably time to use multiple arrays.
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