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https://issues.apache.org/jira/browse/MNG-8207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872885#comment-17872885
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Tamas Cservenak commented on MNG-8207:
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This is called "split repository", see here
https://maven.apache.org/resolver/local-repository.html#split-local-repository
> Support 2 level local maven repo, one for downloading, the other for local
> install
> ----------------------------------------------------------------------------------
>
> Key: MNG-8207
> URL: https://issues.apache.org/jira/browse/MNG-8207
> Project: Maven
> Issue Type: New Feature
> Components: Artifacts and Repositories
> Affects Versions: waiting-for-feedback
> Reporter: wei cai
> Priority: Major
>
> Our CI solution is based on K8s. All builds happen in a worker pod created
> from scratch and will be reclaimed once job completes. When the CI worker pod
> is created, a dir path on the host (which the pod belongs) will be mounted to
> the pod which serves as the shared maven repo path to reduce downloads.
>
> The current problem we are facing is:
> * As multiple projects build shared the same maven repo path, when some
> project executes mvn install, artifacts will be installed to local maven
> repo. The artifacts installed might be having some issues and are
> inconsistent with the artifacts in remote repo, which would pollute the Maven
> shared cache and affect other builds.
>
> We expect to support:
> * Support two local repos, one is the shared local repo which is for
> downloading all artifacts from remote repo, and the other is the application
> level maven local repo where all project artifacts will be installed to.
> * When the install command is executed, the artifacts built will be written
> into the application level maven local repo and will never pollute the shared
> one.
> Is this currently possible? I don't find any useful doc or guide could solve
> the polluted cache issue.
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