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From "angela (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-1300) spi2dav Improve performance for large binary properties
Date Tue, 19 Feb 2008 17:10:43 GMT

     [ https://issues.apache.org/jira/browse/JCR-1300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

angela updated JCR-1300:

    Attachment: JCR-1300_spi2dav.patch

> spi2dav Improve performance for large binary properties
> -------------------------------------------------------
>                 Key: JCR-1300
>                 URL: https://issues.apache.org/jira/browse/JCR-1300
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: contrib, jackrabbit-jcr-server
>            Reporter: Jozef Wagner
>         Attachments: JCR-1300_jcr-server.patch, JCR-1300_spi2dav.patch
> Sending large binary properties over spi2dav is slow and requires a lot of heap space
in both client and server.
> One problematic part is base64 conversion of the property value.
> On the contrary, using 'normal' webdav interface (/repository/default/ instead of /server)
for uploading a file (through traditional webdav client) it is pretty fast and don't have
such impact on heap space.
> Some suggestions from the previous discussion:
>  - avoid temporary copies of the data, and persist large objects as early as possible.

>  - transfer large objects in blocks from the Jackrabbit SPI client to the server (and
>  - make usage of the global data store (JCR-926). 
>  - straight forward PUT for single-valued properties
> Link to discussion: http://www.mail-archive.com/dev@jackrabbit.apache.org/msg09481.html

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