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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4119) Compress on a large table fails with IllegalArgumentException - Illegal Capacity
Date Thu, 26 Mar 2009 21:39:50 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689682#action_12689682
] 

Kristian Waagan commented on DERBY-4119:
----------------------------------------

Thanks for the feedback, Larry!

I expect we'll investigate further and have a fix ready for the (expected) next 10.5 release
candidate.
How easily can you reproduce the bug?
Can you post the values for the page cache size, and the minimum and maximum heap set for
Java?

I'm having problems reproducing the bug with the application used when I saw the bug, and
due to the size of the data it takes a while to run it through.

> Compress on a large table fails with IllegalArgumentException - Illegal Capacity
> --------------------------------------------------------------------------------
>
>                 Key: DERBY-4119
>                 URL: https://issues.apache.org/jira/browse/DERBY-4119
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.5.1.0
>            Reporter: Kristian Waagan
>         Attachments: overflow.diff
>
>
> When compressing a large table, Derby failed with the following exception:
> IllegalArgumentException; Illegal Capacity: -X
> I was able to access the database afterwards, but haven't yet checked if all the data
is still available.
> The compress was started with CALL SYSCS_UTIL.SYSCS_COMPRESS_TABLE('schema', 'table',
1) from ij.
> The data in the table was inserted with 25 concurrent threads. This seems to cause excessive
table growth, as the data inserted should weigh in at around 2 GB. The table size after the
insert is ten times bigger, 20 GB.
> I have been able to generate the table and do a compress earlier, but then I have been
using fewer insert threads.
> I have also been able to successfully compress the table when retrying after the failure
occurred (shut down the database, then booted again and compressed).
> I'm trying to reproduce, and will post more information (like the stack trace) later.
> So far my attempts at reproducing has failed. Normally the data is generated and the
compress is started without shutting down the database. My attempts this far has consisted
of doing compress on the existing database (where the failure was first seen).

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