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Posted to issues@sentry.apache.org by "Arjun Mishra (JIRA)" <ji...@apache.org> on 2018/10/01 04:09:00 UTC
[jira] [Commented] (SENTRY-2290) Avoid storing the path information
for partitions in default location
[ https://issues.apache.org/jira/browse/SENTRY-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16633599#comment-16633599 ]
Arjun Mishra commented on SENTRY-2290:
--------------------------------------
[~kkalyan] Can you change the resolution as this is not fixed
> Avoid storing the path information for partitions in default location
> ---------------------------------------------------------------------
>
> Key: SENTRY-2290
> URL: https://issues.apache.org/jira/browse/SENTRY-2290
> Project: Sentry
> Issue Type: Sub-task
> Components: Sentry
> Affects Versions: 2.1.0
> Reporter: kalyan kumar kalvagadda
> Assignee: kalyan kumar kalvagadda
> Priority: Major
> Fix For: 2.1.0
>
>
> Sentry can ignore the partitions entries which are located in default location as they share the same permissions as the table. This will reduce the snapshot size decreasing the time to persist the snapshot and also time to send the full update to Namenode. This is important as the partition information has lion’s share in a HMS Full snapshot. Same approach can be taken for tables as well but the issue is that we need to re-construct the location based on the database and table names while constructing the ACL for the table location. This may increase the CPU overhead. With partitions we are safe to ignore the partitions with default location as sentry doesn't support permissions on partitions.
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