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Posted to issues-all@impala.apache.org by "Tamas Mate (Jira)" <ji...@apache.org> on 2019/09/05 15:16:00 UTC
[jira] [Commented] (IMPALA-6663) Expose current DDL metrics
(grouped by type) in the Catalog web UI
[ https://issues.apache.org/jira/browse/IMPALA-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16923526#comment-16923526 ]
Tamas Mate commented on IMPALA-6663:
------------------------------------
Hi [~bharathv], thanks for looking into it.
After [~vihangk1]'s observations I modified the change, so that the information displayed is more straightforward and meaningful. What do you think about the new concept, catalog_new_operations_page.png?
> 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 v
> Assignee: Tamas Mate
> Priority: Major
> Labels: observability, ramp-up, supportability
> Attachments: catalog_new_operations_page.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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