phoenix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Samarth Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4333) Stats - Incorrect estimate when stats are updated on a tenant specific view
Date Thu, 02 Nov 2017 07:06:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16235294#comment-16235294
] 

Samarth Jain commented on PHOENIX-4333:
---------------------------------------

Good point, [~jamestaylor]. I don't think my check would work in the below case:

REGION 1 - VIEW1 and VIEW2
REGION2 - VIEW2 and VIEW3

If we collect stats for VIEW1 and VIEW3, then even though both regions have stats, they don't
have stats for VIEW2. I think I would also need to check whether there any guidepost intersected
for the region.

> 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, PHOENIX-4333_v2.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.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message