[jira] Updated: (COUCHDB-639) Pull replication should profit of compressed attachments for higher performance

["Filipe Manana (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COUCHDB-639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Filipe Manana updated COUCHDB-639:
----------------------------------

    Attachment: pull-rep-att-comp.patch

> Pull replication should profit of compressed attachments for higher performance
> -------------------------------------------------------------------------------
>
>                 Key: COUCHDB-639
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-639
>             Project: CouchDB
>          Issue Type: Improvement
>          Components: Replication
>    Affects Versions: 0.11
>         Environment: trunk
>            Reporter: Filipe Manana
>         Attachments: pull-rep-att-comp.patch
>
>
> Currently, when doing a pull replication where there are docs at the source DB with compressed attachments:
> 1) The source decompresses the attachment before sending it to the target DB
> 2) The target compresses the attachment before storing it
> Clearly, a waste of CPU, bandwidth and disk IO.
> The following patch fixes the issue. JavaScript test included.

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