I've given the task to create two CentOS 7 servers where not only the databases will be replicated but also files. Now my problem is that there will be probably hundred-thousands of files if not a million of files with a wide variety of sizes from a few Kbytes to ~1 Gbyte.
I've read about
Now I wish to ask your experiences about any of these if you have been using it or currently using it. How is the performance doing with the file changes regarding to copies and deletions? I'm very affraid of using any rsync because my experience is that it is not very fast with a lot of small files, therefore I can't really use it for a real-time file replication. Or am I wrong? Please prove me wrong. :)
Or maybe I'll need a 3rd and 4th server as fileservers? If yes, then the question still remains: How to replicate the files between the two servers in realtime?