Github user EronWright commented on the issue:
https://github.com/apache/flink/pull/3388
Just a note: For Mesos, inevitably we'll add support for arbitrary URLs to
be downloaded by the container. The Mesos fetcher deals with HTTP URLs
primarily but actually supports HDFS URLs too (if configured; seems rarely
used).
Stepping back, we need the clustering layer to converge because supporting
these features in a one-off way is becoming unsustainable.
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