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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2019/02/06 22:11:00 UTC

[jira] [Updated] (HIVE-21225) ACID: getAcidState() should cache a recursive dir listing locally

     [ https://issues.apache.org/jira/browse/HIVE-21225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gopal V updated HIVE-21225:
---------------------------
    Issue Type: Improvement  (was: Bug)

> ACID: getAcidState() should cache a recursive dir listing locally
> -----------------------------------------------------------------
>
>                 Key: HIVE-21225
>                 URL: https://issues.apache.org/jira/browse/HIVE-21225
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Gopal V
>            Priority: Major
>
> 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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