unison or Rsync for session files between servers in php app

In my cheap config I am using 2x app servers and 1x DB server.

My question now is what I should use in order to sync session files between the servers for my php app?

Is unison or Rsync good here, or is there something more light?

All systems are running Ubuntu.

Thanks in advance,


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Don’t use GlusterFS, Ceph , XtreemFS or anything similar if you do any writes to your file system. Data latency is a big issue with all of these solutions.

You could also use Glusterfs or another shared filesystem like an NFS. Unison or Rsync are great, but might be a bit slower.