People, Gerry Reno raised a very interesting question about AFR. Let's imagine the following case: two bricks AFRed. I create a few files (say mail files inside a Maildir). The second brick goes down. I erase a few e-mails (checking my POP3 account). Them I bring back the second brick. The files created/changed during this time will be copied to the second as soon as I open() them. The problem is: if I "ls -la" I'll see the old erased files. If I try to open them GlusterFS will even replicate it. Why this is happening: when I do a "ls -la" Gluster will check both bricks and give the list of files inside both servers. I'm using only AFR, without unify. I tested it here and got the expected result. I can propose one solution for this problem. If you apply the same versioning algorithm used with files to the directories themselves the self-heal could detect witch dir has the newest file list and erase what's necessary. What do you think? Best regards, Daniel Colchete
