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https://issues.apache.org/jira/browse/IMPALA-3234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-3234:
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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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