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Posted to issues-all@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2021/07/16 12:38:00 UTC

[jira] [Assigned] (IMPALA-10737) Optimize Iceberg metadata handling

     [ https://issues.apache.org/jira/browse/IMPALA-10737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy reassigned IMPALA-10737:
------------------------------------------

    Assignee: Zoltán Borók-Nagy

> Optimize Iceberg metadata handling
> ----------------------------------
>
>                 Key: IMPALA-10737
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10737
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>            Reporter: Zoltán Borók-Nagy
>            Assignee: Zoltán Borók-Nagy
>            Priority: Major
>              Labels: impala-iceberg
>
> Currently we re-read Iceberg table metadata in several cases.
> We should rather keep it in memory and use it when possible.
> Also, when refreshing a table we should use Iceberg's refresh() API to avoid unnecessary re-reads of manifest files:
> [https://github.com/apache/iceberg/blob/282b6f9f1cae8d4fd5ff7c73de513ca91f01fddc/core/src/main/java/org/apache/iceberg/TableOperations.java#L45]
>  



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