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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/10/23 22:43:00 UTC
[jira] [Updated] (IMPALA-3234) Catalog should send incremental
metadata changes to Impalads
[ https://issues.apache.org/jira/browse/IMPALA-3234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong updated IMPALA-3234:
----------------------------------
Priority: Major (was: Critical)
> Catalog should send incremental metadata changes to Impalads
> ------------------------------------------------------------
>
> Key: IMPALA-3234
> URL: https://issues.apache.org/jira/browse/IMPALA-3234
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Affects Versions: Impala 2.5.0
> Reporter: Dimitris Tsirogiannis
> Priority: Major
> Labels: catalog-server
>
> Currently, every table metadata change (DDL/DML operation) causes the catalog to serialize the entire table metadata and send it to: a) the impalad node that triggered the operation and b) all the impalad nodes via a statestore update. The catalog should instead send only the portion of the table metadata that changed. Furthermore, certain operations, like DESCRIBE statements, don't require the full table metadata.
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