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From "Vaibhav Gumashta (JIRA)" <>
Subject [jira] [Updated] (HIVE-21225) ACID: getAcidState() should cache a recursive dir listing locally
Date Mon, 15 Jul 2019 09:59:00 GMT


Vaibhav Gumashta updated HIVE-21225:
    Attachment: HIVE-21225.13.patch

> ACID: getAcidState() should cache a recursive dir listing locally
> -----------------------------------------------------------------
>                 Key: HIVE-21225
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Gopal V
>            Assignee: Vaibhav Gumashta
>            Priority: Major
>         Attachments: HIVE-21225.1.patch, HIVE-21225.10.patch, HIVE-21225.11.patch, HIVE-21225.12.patch,
HIVE-21225.13.patch, HIVE-21225.2.patch, HIVE-21225.3.patch, HIVE-21225.4.patch, HIVE-21225.4.patch,
HIVE-21225.5.patch, HIVE-21225.6.patch, HIVE-21225.7.patch, HIVE-21225.7.patch, HIVE-21225.8.patch,
HIVE-21225.9.patch, async-pid-44-2.svg
> Currently getAcidState() makes 3 calls into the FS api which could be answered by making
a single recursive listDir call and reusing the same data to check for isRawFormat() and isValidBase().
> All delta operations for a single partition can go against a single listed directory
snapshot instead of interacting with the NameNode or ObjectStore within the inner loop.

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