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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-646) In-memory backend storage support
Date Tue, 24 Feb 2009 20:29:01 GMT

     [ https://issues.apache.org/jira/browse/DERBY-646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Matrigali updated DERBY-646:
---------------------------------


As to how to proceed, first is there an icla for cheng's contribution?

Is it possible for either of these patches to run through the entire derby test suite, in
in-memory mode? 

how does either compare to "test mode" with the page cache set as big as expected in-memory
use?

Kristian, or any other committer, can you take a look at both implementations and comment

on any 
strength's/weeknesses from both.  As you suggest it would be nice if we could get a combined
agreed implementation from both.  

If goal is really the fast approaching 10.5, then it would be nice to have some sort of upper
level user documentation.  How to use it, what are limits, is all functionality supported.
 What happens in case it runs out of memory, or internal limits. 

> In-memory backend storage support
> ---------------------------------
>
>                 Key: DERBY-646
>                 URL: https://issues.apache.org/jira/browse/DERBY-646
>             Project: Derby
>          Issue Type: New Feature
>          Components: Store
>         Environment: All
>            Reporter: Stephen Fitch
>         Attachments: derby-646-1a-raw-compiles.diff, derby-646-1a-raw-compiles.stat,
derby-646-20090222.diff, derby-646-20090222.stat, derby-646-2a-vfmem_first_rev.diff, derby-646-2a-vfmem_first_rev.stat,
derby-646-performance_comparison_1a.txt, svn.diff
>
>
> To allow creation and modification of databases in-memory without requiring disk access
or space to store the database.

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