I talked to my colleague at network infrastructure and he helped me.
We have two Wildfly servers at different machines; let’s call it server1 and server2:
- both points to a NFS share which is on a third machine
- the visible directory on both servers is /opt/system/documents/ – it is a NFS share; it points to the same directory on the third machine
- inside this directory we have a ‘cache’ directory. It is only on this third server. Both server1 and server2 access it through the NFS /opt/system/documents/, and then /opt/system/documents/cache; this ‘cache’ directory doesn’t exist on server1 neither server2 machines