[jira] [Assigned] (HIVE-24806) Compactor: Initiator should lazy evaluate findUserToRunAs()

["Rajesh Balamohan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-24806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan reassigned HIVE-24806:
---------------------------------------

    Assignee: Rajesh Balamohan

> Compactor: Initiator should lazy evaluate findUserToRunAs()
> -----------------------------------------------------------
>
>                 Key: HIVE-24806
>                 URL: https://issues.apache.org/jira/browse/HIVE-24806
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> https://github.com/apache/hive/blob/64bb52316f19426ebea0087ee15e282cbde1d852/ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Initiator.java#L232
> {noformat}
> cache.putIfAbsent(fullTableName, findUserToRunAs(sd.getLocation(), t));
> {noformat}
> This ends up evaluating findUserToRunAs() everytime, and looks up from FileSystem on every call (thousands of times in large database).
> This can be lazy initialized instead (e.g computeIfAbsent);



--
This message was sent by Atlassian Jira
(v8.3.4#803005)