[jira] [Resolved] (IMPALA-6663) Expose current DDL metrics (grouped by type) in the Catalog web UI

["Tamas Mate (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tamas Mate resolved IMPALA-6663.
--------------------------------
    Fix Version/s: Impala 4.0
       Resolution: Resolved

> Expose current DDL metrics (grouped by type) in the Catalog web UI
> ------------------------------------------------------------------
>
>                 Key: IMPALA-6663
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6663
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Catalog
>    Affects Versions: Impala 2.12.0
>            Reporter: Bharath Vissapragada
>            Assignee: Tamas Mate
>            Priority: Major
>              Labels: observability, ramp-up, supportability
>             Fix For: Impala 4.0
>
>         Attachments: catalog_new_operations_page.png, catalog_new_operations_page_v2.png, catalog_page_new_bottom_v2.png, catalog_page_new_top.png, catalog_page_original.png
>
>
> It helps if the catalog server can expose currently running (counts) DDL and RESET_METADATA requests via the web UI metrics. From an observability/supportability point of view, these numbers help reason about the Cluster behavior during Catalog heavy load or in situations where Catalog server is the bottleneck
> Following are some of the interesting ones that I think are interesting.
> {noformat}
> enum TDdlType {
>   ALTER_TABLE,
>   ALTER_VIEW,
>   CREATE_DATABASE,
>   CREATE_TABLE,
>   CREATE_TABLE_AS_SELECT,
>   CREATE_TABLE_LIKE,
>   CREATE_VIEW,
>   CREATE_FUNCTION,
>   COMPUTE_STATS,
>   DROP_DATABASE,
>   DROP_TABLE,
>   DROP_VIEW,
>   DROP_FUNCTION,
>   CREATE_DATA_SOURCE,
>   DROP_DATA_SOURCE,
>   DROP_STATS,
>   CREATE_ROLE,
>   DROP_ROLE,
>   GRANT_ROLE,
>   REVOKE_ROLE,
>   GRANT_PRIVILEGE,
>   REVOKE_PRIVILEGE,
>   TRUNCATE_TABLE,
> }
> TCatalogOpType.RESET_METADATA
> TStmtType.DML
> {noformat}
> This should be based on the metrics framework added in IMPALA-4886.



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