db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4833) Prepare existing JUnit tests for running with automatic index statistics generation
Date Fri, 10 Dec 2010 16:47:01 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan updated DERBY-4833:
-----------------------------------

    Attachment: derby-4833-2a-updatelocks_disable_autostats.diff

Attaching patch 2a, which disabled automatic index stats update for the test store/updatelocks.sql.
The locks taken, or possibly timing differences, are interfering with the test.There are also
reports of intermittent failures for this test (before any of the new istat code was added).

Patch ready for review.

> Prepare existing JUnit tests for running with automatic index statistics generation
> -----------------------------------------------------------------------------------
>
>                 Key: DERBY-4833
>                 URL: https://issues.apache.org/jira/browse/DERBY-4833
>             Project: Derby
>          Issue Type: Task
>          Components: Test
>    Affects Versions: 10.7.1.1
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>            Priority: Minor
>         Attachments: derby-4833-1a-orderbyandsortavoidancetest_adjustment.diff, derby-4833-2a-updatelocks_disable_autostats.diff
>
>
> During prototyping of a mechanism to create and update index statistics automatically
(see DERBY-4771) it turned out that some of the tests fail due to the presence of [improved]
index statistics.
> Where appropriate the tests should be adjusted to cope with this background activity,
and where not appropriate it should be noted such that the feature, when introduced, can be
disabled.
> As part of this effort I will introduce a utility class for dealing with index statistics
in tests. These will be used by some existing tests and also the new tests that will be written
for the new feature.
> At this point two tests requiring adjustments have been identified (OrderByAndSortAvoidance,
UpdateStatisticsTest), and one is under investigation (AutoIncrementTest). More may surface
as the work on the feature progress.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message