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Posted to issues@impala.apache.org by "Steve Carlin (Jira)" <ji...@apache.org> on 2026/02/20 20:53:00 UTC

[jira] [Closed] (IMPALA-14384) Calcite Planner: reduce the calls to Class.forName, as this can create a performance bottleneck under high concurrency

     [ https://issues.apache.org/jira/browse/IMPALA-14384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Carlin closed IMPALA-14384.
---------------------------------
    Resolution: Fixed

> Calcite Planner: reduce the calls to Class.forName, as this can create a performance bottleneck under high concurrency
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: IMPALA-14384
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14384
>             Project: IMPALA
>          Issue Type: Sub-task
>            Reporter: weihua zhang
>            Priority: Major
>
> [https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/service/Frontend.java#L3724]
> Can we reduce the calls to Class.forName, as this can create a performance bottleneck under high concurrency?



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