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From "John H. Embretsen (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1872) Backport lang/wisconsin.java at to the 10.1 branch
Date Wed, 20 Sep 2006 19:37:25 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1872?page=all ]

John H. Embretsen updated DERBY-1872:

    Attachment: port-wisconsin-from-

Attaching patch for porting the lang/wisconsin.java test from its state in to the
10.1 branch.

This patch, 'port-wisconsin-from-' ('.diff' when unzipped), replaces
the _v1, patch that was attached to DERBY-1564. There is only one change from the _v1 patch:

* Added lang/wisc_setup.sql to lang/copyfiles.ant, so that it gets included in
  the build. copyfiles.ant is no longer needed in trunk or 10.2 (DERBY-892), so it
  took me a while to figure out what caused my build problem with the _v1-patch,
  and why. The build works fine with the _v2 patch.

Here is a summary of changes provided by the patch:

- renames the test from lang/wisconsin.sql to lang/wisconsin.java (DERBY-398) 
- adds wisc_setup.sql support file (DERBY-398) 
- removes framework-specific master files (for DerbyNet and DerbyNetClient) (DERBY-1014) 
- runs compress on tables before retreiving runtimestatistics (DERBY-937) 
- adds property derby.optimizer.noTimeout=true to wisconsin_derby.properties (DERBY-413/DERBY-937)

(I do not expect any problems related to DERBY-822 (as mentioned in the _v1 patch description),
as the changes relating to the wisconsin test stems from DERBY-1014 _in preparation for_ DERBY-822,
not DERBY-822 itself.)

Please note that the patch requires several 'svn add' and 'svn delete' commands, as shown
in 'port-wisconsin-from-'.

The patch is zipped because it is 3.3 MB uncompressed.

I have tested this patch by running:

* lang/wisconsin.java (10.1), single-runs in all three frameworks on
   * Solaris 10 x86, Sun JVM 1.5.0_07 - passed
   * Solaris 10 x86, Sun JVM 1.4.2_12 - passed
   * Solaris 10 x86, Sun JVM 1.3.1_15 - passed

* derbyall on Solaris 10 x86, Sun JVM 1.5.0_07  - 1 unrelated failure, derbynetmats/testSecMec.diff

Please review/commit if you think this adds value to the 10.1 branch.

> Backport lang/wisconsin.java at to the 10.1 branch
> -----------------------------------------------------------------
>                 Key: DERBY-1872
>                 URL: http://issues.apache.org/jira/browse/DERBY-1872
>             Project: Derby
>          Issue Type: Test
>          Components: Test
>    Affects Versions:
>         Environment: N/A
>            Reporter: John H. Embretsen
>         Assigned To: John H. Embretsen
>            Priority: Minor
>             Fix For:
>         Attachments: port-wisconsin-from-, port-wisconsin-from-
> Investigations relating to DERBY-1564 ("wisconsin.java test failed in DerbyNet or DerbyNetClient
frameworks, VM for network server got OutOfMemoryError") revealed that comparing memory usage
for the lang/wisconsin.[java|sql] test in 10.1.x versus 10.2.x was like comparing apples and
oranges. After the 10.1 branch was created, several updates were made to the wisconsin test
in trunk that were not backported to 10.1, e.g:
> * giving the optimizer unlimited time to choose query plans
> * compressing the tables to avoid the instabilities reported in DERBY-937
> Backporting the test will make it less unfair to compare 10.1 vs. 10.2 (or trunk) test
results and memory usage, and it will make it easier to determine if failures (such as DERBY-1564)
are regressions or not. On the other hand, other differences between the branches that may
influence the test will remain, so this will not be a wonder cure.
> The failures seen in DERBY-1564 were mainly caused by bugs (DERBY-1091, DERBY-1614) in
the test harness, causing the wisconsin test for the snapshot to run with low memory
settings. These issues have been fixed.
> The most practical backporting approach will probably be to take the wisconsin test as
it was in the (SVN revision 423199), and port it to the current 10.1 branch.
Other changes have been made to the wisconsin test in trunk/10.2 after, but to avoid
various dependencies (e.g. DERBY-1609), these should not be backported.

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