Sergey Shelukhin created HIVE-17827:
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Summary: refactor TezTask file management
Key: HIVE-17827
URL: https://issues.apache.org/jira/browse/HIVE-17827
Project: Hive
Issue Type: Bug
Reporter: Sergey Shelukhin
There are about 5 different duplicate and intersecting structures used in
TezTask so to manage the file list (additionalLr, inputOutputX x2 (array and
list and/or map?), resourceMap; plus a list in the actual session object;
multiple methods called like addExtraResourcesBlah, localizeBlah; at least 2
places where TezClient is invoked to add resources to AM, on the same path.
All this mess needs to be changed to have exactly one place that figures out
what needs to be localized, and exactly one place (in TezSessionState so we
don't duplicate state and TezClient usage inside and outside of it) where we
look at what's already there and localize things that are not.
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