PSA: maven central and sonatype are slow

less than 1 minute read


Most of the public maven repositories for downloading java artifacts (notably maven-central, and sonatype) are slow. Besides, build tools do not have a perfect track record of resolving dependencies from these repositories in an efficient manner.

A consequence of that is that if you are not sitting on a T1 or better connection and building from pure repos (sonatype, maven-central), rather than using a proxy, you are wasting your time waiting for the network on each build. This takes 15 mins to fix, forever:

  • docker pull sonatype/nexus
  • docker run -d -p 8081:8081 --name nexus -v /mnt/nexus-data:/nexus-data --restart unless-stopped sonatype/nexus3
  • go to http://localhost:8081, login, configure two proxies for maven-central and sonatype, expose them through a group called public.
  • in your local .m2/settings.xml, add:




    <name>Local Mirror.</name>