infra: prefer downloads.apache.org, fallback to archive.apache.org #2494
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Rationale for this change
This PR changes the Dockerfile url to use
downloads.apache.org/sparkfirst and then fallbacks tohttps://archive.apache.org/dist.This should give us speed and reliability.
https://archive.apache.org/distis very slow, we switch to it because its more reliable and contains all versions of Spark.downloads.apache.org/sparkhosts the latest versions of spark, its typically faster.Thanks @mccormickt12 for the great idea!
Are these changes tested?
yes
also tested fallback logic
Are there any user-facing changes?