[jira] Resolved: (IVY-996) Remove excessive HEAD requests for URL repository

["Xavier Hanin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IVY-996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xavier Hanin resolved IVY-996.
------------------------------

       Resolution: Fixed
    Fix Version/s: trunk

I've made some modifications on trunk which should fix this as you asked: making head requests only for potential matches. I've made some testing in my environment, and it works well. I'd appreciate feedback though to know if it works for you too.

> Remove excessive HEAD requests for URL repository
> -------------------------------------------------
>
>                 Key: IVY-996
>                 URL: https://issues.apache.org/jira/browse/IVY-996
>             Project: Ivy
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 2.0-RC2
>            Reporter: Eric Anderson
>            Assignee: Xavier Hanin
>             Fix For: trunk
>
>
> h3. Fixing useless extra HEAD requests
> When searching for an artifact named "project" version "2.2.+" for organization "org", Ivy attempts HEAD requests for completely not possible versions.
> IE: /org/project/0.9.2/ivy-0.9.2.xml
> This is not terribly painful unless you have thousands of builds and are not on the same network as your ivy server. 
> h3. Are HEAD requests even necessary?
> Simply getting a directory listing should be good enough to determine if there is an artifact (for choosing latest-release). Now, after one is chosen, if no ivy.xml file exists, I could understand trying the next one, but trying all of them, just to select the latest one anyways seems like a complete waste.

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