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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4152) mailjdbc test database grows very fast with 10.5
Date Mon, 20 Apr 2009 17:12:47 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Mike Matrigali updated DERBY-4152:

The initial behavior you report for inplace space compress and pk violation does seem like
a bug.  I was expecting all pages to be marked as free that were associcated with the clob/blob
that were aborted as part of the pk violation.  It is known this does not happen at abort
time but was expecting inplace compress to get it back at least as free pages.  

The only thing I am wondering about is that there may be multiple layers of post commit actions
and timing involved.   the inplace compress searches the head pages for deleted rows and purges
these.  These purges I belive in term queue post commit actions to free the underlying long
column chains, which will take place in background.
I am going to run some tests to see if this is happening.

> mailjdbc test database  grows very fast with 10.5
> -------------------------------------------------
>                 Key: DERBY-4152
>                 URL: https://issues.apache.org/jira/browse/DERBY-4152
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions:
>         Environment: java version "1.6.0"
> Java(TM) SE Runtime Environment (build pwi3260sr3-20081106_07(SR3))
> IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 Windows 2000 x86-32 jvmwi3260-200811
> 05_25433 (JIT enabled, AOT enabled)
> J9VM - 20081105_025433_lHdSMr
> JIT  - r9_20081031_1330
> GC   - 20081027_AB)
> Windows 2000 5.00.2195 /Service pack 4
> 4 CPU 3.00GHz
>            Reporter: Kathey Marsden
>            Priority: Critical
>         Attachments: derby-4152_quick_change_to_stop_pk_violation_diff.txt, insertMailSummary.txt,
TestInPlaceCompressWithPKViolation.java, TestInPlaceCompressWithPKViolation.java
> When I ran the mailjdbc test on RC I found that the mailsdb database grew to
16GB after two days.  On  on the same machine with the same configuration (no derby.properties)
it grew to only 1.7GB after 7 days.  Both were sane builds.
> This is with the embedded configuration:
> java org.apache.derbyTesting.system.mailjdbc.MailJdbc embedded

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