I had to switch to aria2c for fetching larger from AWS S3 (50-150 MB). Otherwise a small peecent of downloads were slow (in EC2), b/c most other fetchers have r

I had to switch to aria2c for fetching larger from AWS S3 (50-150 MB). Otherwise a small peecent of downloads were slow (in EC2), b/c most other fetchers have really poor retry logic.