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Rsync alternatives

From Wikitech

Rsync isn't the only game in town when it comes to high-performance bulk data transfers.

High Performance Bulk Data Transfer (PDF) explains why rsync's performance can be disappointing and gives tips for tuning it, as well as a survey of alternative tools (page 32 onwards):

  • GridFTP
  • bbcp
  • lftp (parallel accelerator for HTTP & FTP)
  • axel (parallel accelerator for HTTP & FTP)

See also High Performance SSH/SCP - HPN-SSH, a set of performance patches for OpenSSH.