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Posted to dev@jena.apache.org by "Paolo Castagna (JIRA)" <ji...@apache.org> on 2011/03/29 09:41:05 UTC

[jira] [Commented] (JENA-45) Spill to disk SPARQL Update

    [ https://issues.apache.org/jira/browse/JENA-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012366#comment-13012366 ] 

Paolo Castagna commented on JENA-45:
------------------------------------

Hi Stephen, first of all thanks for the patch.
The patch does not apply cleanly with current ARQ trunk. There are problems with UpdateEngineWorker.
I tried to fix those, but now I have two failures in TestUpdateGraphMem: testModify2 and testCopy.


> Spill to disk SPARQL Update
> ---------------------------
>
>                 Key: JENA-45
>                 URL: https://issues.apache.org/jira/browse/JENA-45
>             Project: Jena
>          Issue Type: New Feature
>          Components: ARQ
>            Reporter: Stephen Allen
>         Attachments: ARQ-Disk-Backed-Updates-r8504.patch
>
>
> Attached is a patch that implements a spill-to-disk container for performing SPARQL Update commands.  It utilizes a DeferredFileQueue that can serialize/deserialize Bindings, Quads, and Triples.  Also included are some unit tests.
> Items yet to be addressed:
> 1) Read the threshold and temporary file location from a config file
> 2) Examine compression of the bindings/quads/triples to see if we can improve I/O speed
> [1] http://mail-archives.apache.org/mod_mbox/incubator-jena-dev/201102.mbox/%3C003901cbc22e$2e5c5bc0$8b151340$@com%3E

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Re: [jira] [Commented] (JENA-45) Spill to disk SPARQL Update

Posted by Paolo Castagna <ca...@googlemail.com>.
Paolo Castagna (JIRA) wrote:
> Hi Stephen, first of all thanks for the patch.
> The patch does not apply cleanly with current ARQ trunk. There are problems with UpdateEngineWorker.
> I tried to fix those, but now I have two failures in TestUpdateGraphMem: testModify2 and testCopy.

I also have tried this:
svn co https://jena.svn.sourceforge.net/svnroot/jena/ARQ/trunk/@8504 ARQ
wget https://issues.apache.org/jira/secure/attachment/12470799/ARQ-Disk-Backed-Updates-r8504.patch
cd ARQ
patch -p0 < ../ARQ-Disk-Backed-Updates-r8504.patch
mvn test

This way there are compile errors.

The patch did not apply cleanly therefore I am not sure it has generated from the r8504 revision.

Paolo