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Posted to dev@phoenix.apache.org by "Lars Hofhansl (Jira)" <ji...@apache.org> on 2023/04/11 01:00:00 UTC

[jira] [Comment Edited] (OMID-240) Transactional visibility is broken

    [ https://issues.apache.org/jira/browse/OMID-240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17710359#comment-17710359 ] 

Lars Hofhansl edited comment on OMID-240 at 4/11/23 12:59 AM:
--------------------------------------------------------------

Happens whether PostCommitMode is SYNC or ASYNC, and ConflictDetectionLevel is ROW or CELL.

So it looks like this is generally broken!


was (Author: lhofhansl):
Happens whether PostCommitMode is SYNC or ASYNC

> Transactional visibility is broken
> ----------------------------------
>
>                 Key: OMID-240
>                 URL: https://issues.apache.org/jira/browse/OMID-240
>             Project: Phoenix Omid
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>            Reporter: Lars Hofhansl
>            Priority: Major
>         Attachments: hbase-omid-client-config.yml, omid-server-configuration.yml
>
>
> Client I:
> {code:java}
>  > create table test(x float primary key, y float) DISABLE_WAL=true, TRANSACTIONAL=true;
> No rows affected (1.872 seconds)
> > !autocommit off
> Autocommit status: false
> > upsert into test values(rand(), rand());
> 1 row affected (0.018 seconds)
> > upsert into test select rand(), rand() from test;
> -- 18-20x
> > !commit{code}
>  
> Client II:
> {code:java}
> -- repeat quickly after the commit on client I
> > select count(*) from test;
> +----------+
> | COUNT(1) |
> +----------+
> | 0        |
> +----------+
> 1 row selected (1.408 seconds)
> > select count(*) from test;
> +----------+
> | COUNT(1) |
> +----------+
> | 259884   |
> +----------+
> 1 row selected (2.959 seconds)
> > select count(*) from test;
> +----------+
> | COUNT(1) |
> +----------+
> | 260145   |
> +----------+
> 1 row selected (4.274 seconds)
> > select count(*) from test;
> +----------+
> | COUNT(1) |
> +----------+
> | 260148   |
> +----------+
> 1 row selected (5.563 seconds)
> > select count(*) from test;
> +----------+
> | COUNT(1) |
> +----------+
> | 260148   |
> +----------+
> 1 row selected (5.573 seconds){code}
> The second client should either show 0 or 260148. But no other value!



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