I installed Subversion 1.9 in two servers (Ubuntu Linux). One act as a production server and second one work as a mirror server (svnsync) . I would like to implement high availability setup in Subversion servers. What would be the recommended options. I know that subversion does not provide HA feature ( Wandisco does but it's costly). I am familiar with HAProxy but svnsync only sync master to mirror so I could not use HA proxy. Could you please suggest a recommended option?