Sergey Shelukhin created HIVE-9420:
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Summary: LLAP: decide on initial threading structure for low-level
parts
Key: HIVE-9420
URL: https://issues.apache.org/jira/browse/HIVE-9420
Project: Hive
Issue Type: Sub-task
Reporter: Sergey Shelukhin
Right now reader is a callable that is dumped into threadpool, and all the data
loading for one request happens on one thread (in parallel with operator
pipeline).
We might want to separate reading from HDFS/decompressing data, from decoding
data and low-level row-level SARGs (that, and high level cache which is AWOL
now, were the reasons for encoded data production separation from final VRB
production)
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