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Posted to issues@hive.apache.org by "mahesh kumar behera (JIRA)" <ji...@apache.org> on 2018/10/29 13:38:00 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 ]

mahesh kumar behera updated HIVE-18661:
---------------------------------------
    Status: Patch Available  (was: Open)

> 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: mahesh kumar behera
>            Priority: Major
>         Attachments: HIVE-18661.02.patch
>
>
> 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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