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From "Samarth Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-4333) Stats - Incorrect estimate when stats are updated on a tenant specific view
Date Thu, 02 Nov 2017 05:30:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-4333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Samarth Jain updated PHOENIX-4333:
----------------------------------
    Attachment: PHOENIX-4333_v1.patch

With this patch, we now detect that if we don't have stats information available for all the
regions, then we report estimates as null. The updated test tests out this scenario.

[~jamestaylor], please review.

> Stats - Incorrect estimate when stats are updated on a tenant specific view
> ---------------------------------------------------------------------------
>
>                 Key: PHOENIX-4333
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4333
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.12.0
>            Reporter: Mujtaba Chohan
>            Assignee: Samarth Jain
>            Priority: Major
>         Attachments: PHOENIX-4333_test.patch, PHOENIX-4333_v1.patch
>
>
> Consider two tenants A, B with tenant specific view on 2 separate regions/region servers.
> {noformat}
> Region 1 keys:
> A,1
> A,2
> B,1
> Region 2 keys:
> B,2
> B,3
> {noformat}
> When stats are updated on tenant A view. Querying stats on tenant B view yield partial
results (only contains stats for B,1) which are incorrect even though it shows updated timestamp
as current.



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