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http://jira.codehaus.org/browse/MNG-3379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=165586#action_165586
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Brett Porter commented on MNG-3379:
-----------------------------------
even better, configure number of parallel threads, just set it to 1 to turn it
off?
> Parallel resolution of artifacts
> --------------------------------
>
> Key: MNG-3379
> URL: http://jira.codehaus.org/browse/MNG-3379
> Project: Maven 2
> Issue Type: New Feature
> Components: Artifacts and Repositories
> Affects Versions: 2.0.8
> Reporter: Don Brown
> Assignee: Brett Porter
> Fix For: 2.1.0
>
> Attachments: parallel-resolution-2.diff, parallel-resolution-3.diff,
> parallel-resolution.diff
>
>
> Artifacts should be resolved in parallel, grouped by group id's to get around
> the lack of synchronization in the local repository. The patch does the
> following:
> * Use a ThreadPoolExecutor to parallelize artifact resolution, but takes care
> not to resolve multiple artifacts from the same group id simultaneously.
> (requires Java 5)
> * Makes the http wagon the default instead of the poor performing http-client
> Disadvantages:
> * Requires Java 5, but the backport jars could be substituted pretty easily
> * Breaks some plugins due to commons-logging being in the Maven uber jar
> (required by commons-httpclient), notably the apt plugin (maybe more should
> use the isolatedRealm setting?)
> * Screws up the progress monitor as multiple threads are updating it
> Advantages:
> * Much faster when combined with the http wagon (WAGON-98). I was seeing 40%
> improvement on some test builds.
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