Running osync on a 2xnode active/active webserver cluster, in daemon mode

[alokispandey]

Hi, Thanks for the great work..! I find this tool very useful for our setup. Besides for one of the use case, I am trying to set up synchronization between two standalone nodes behind a load balancer running a web server to form a cluster. Since we had limitations on data replication at the storage level, I needed to enable bi-directional sync from the OS layer. Consider the OSYNC-daemon mode limitation where there is a considerable delay in picking changes committed to the destination replica. Would you advise running ossync on both nodes in daemon mode with Inotify, to sync the same files system let's say /var/www/html ? The goal is to sync cluster nodes as soon user makes any changes on either of the nodes.

Suggest if there is any known issue/limitation/prerequisites which should be considered first.

[deajan]

To be honest, that's not really the target aimed. osync is a good solution for slow links, since it's not realtime, nor near-realtime. You'd be probably better of using glusterfs if you want realtime sync. You'll need at least three nodes (two real nodes + 1 arbiter) in order to achieve a quorum.