heynemann

        upstream thumborbe {
            server thumbor.myhost.com:8090 ;
            server thumbor.myhost.com:8091 ;
            server thumbor.myhost.com:8092 ;
            server thumbor.myhost.com:8093 ;
            server thumbor.myhost.com:8094 ;
            server thumbor.myhost.com:8095 ;
        }

        location ~* "^/.{28}/.*(jpg|jpeg|gif|png)(#.*)?$" {

ruckus

WAL-E needs to be installed on all machines, masters and slaves.

How to install WAL-E

Only one machine, the master, writes WAL segments via continuous archiving. The configuration for the master postgresql.conf is:

archive_mode = on
archive_command = 'envdir /etc/wal-e.d/env wal-e wal-push %p'
archive_timeout = 60