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Posted to issues@hive.apache.org by "Vaibhav Gumashta (JIRA)" <ji...@apache.org> on 2018/03/06 23:14:00 UTC
[jira] [Updated] (HIVE-18661) CachedStore: Use metastore
notification log events to update cache
[ https://issues.apache.org/jira/browse/HIVE-18661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vaibhav Gumashta updated HIVE-18661:
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Issue Type: Sub-task (was: Bug)
Parent: HIVE-16520
> CachedStore: Use metastore notification log events to update cache
> ------------------------------------------------------------------
>
> Key: HIVE-18661
> URL: https://issues.apache.org/jira/browse/HIVE-18661
> Project: Hive
> Issue Type: Sub-task
> Components: Metastore
> Reporter: Vaibhav Gumashta
> Assignee: Vaibhav Gumashta
> Priority: Major
>
> Currently, a background thread updates the entire cache which is pretty inefficient. We capture the updates to metadata in NOTIFICATION_LOG table which is getting used in the Replication work. We should have the background thread apply these notifications to incrementally update the cache.
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