For the purposes of this guide, we are going to refer to the server that is going to be sharing its directories the host and the server that will mount these directories as the client.In order to keep these straight throughout the guide, I will be using the following IP addresses as stand-ins for the host and server values: You should substitute the values above with your own host and client values.NFS - Detecting remotely created files programmatically? NFS cache : file content not updated on client when modified on server 4. Especially the "Data And Metadata Coherence" section.was apparently able to list files that had previously been removed by another NFS client, but was unable to access the contents of the files. The NFS client that initially removed the files did not experience any problems and the user reported that the files had indeed been removed from the server's directory.DESCRIPTION An NFS server maintains a table of local physical file systems that are accessible to NFS clients.Each file system in this table is referred to as an exported file system, or export, for short.
This allows you to leverage storage space in a different location and to write to the same space from multiple servers easily.On the other hand, if the modification times are different, the NFS client purges its cache, and issues a new NFS request to the server to obtain the updated directory contents and attributes.Some non-Unix NFS servers are known for not updating the modification time of directories when files are removed, leading to directory caching problems.To facilitate the discussion, we list the Excerpt from: snoop -i /tmp/capture -p 7,8 -v ETHER: ----- Ether Header ----- ETHER: ETHER: Packet 8 arrived at :9.75 ...When issued manually, the /usr/sbin/exportfs command allows the root user to selectively export or unexport directories without restarting the NFS service.