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Posted to issues@kudu.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2016/06/07 15:06:21 UTC
[jira] [Updated] (KUDU-1440) Wrong result ordering for scanning a
table with millions of rows
[ https://issues.apache.org/jira/browse/KUDU-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon updated KUDU-1440:
------------------------------
Issue Type: New Feature (was: Bug)
> Wrong result ordering for scanning a table with millions of rows
> ----------------------------------------------------------------
>
> Key: KUDU-1440
> URL: https://issues.apache.org/jira/browse/KUDU-1440
> Project: Kudu
> Issue Type: New Feature
> Components: client, master, tablet
> Affects Versions: 0.8.0
> Environment: CentOS 7
> Reporter: Martin Weindel
> Priority: Critical
> Attachments: CreateTableTimeSeriesBug.java
>
>
> I have following simple table with two columns:
> {code}
> time TIMESTAMP,
> value FLOAT
> {code}
> The time column is used as range partition key.
> If I have understand the architecture of Kudu correctly, the rows should then be returned in ascending order for the time column.
> This works as long as not more than about 600000 rows are inserted.
> If the number of inserted rows is above 1 mio, the order is messed up globally. On a microlevel it is still correct 99.9% if you look on successive rows.
> My setup is single master / single tablet server on a linux server. The table is created, filled and read with the Kudu Java client version 0.8.0.
> See attached Java code to reproduce the problem.
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