There are 2 clients, A and B. There is a directory /a/b/c/d/. Client A create a file /a/b/c/d/a.txt. Client B move the folder d to /a/. Now, this directory looks like this:/a/b/c/ and /a/d/. /a/b/c/d is not exist any more. Client A try to create a file /a/b/c/d/b.txt.
The result is, when use nfs-ganesha & mount -t nfs4,it successfully create a file but in /a/d/b.txt, of course it’s wrong. However, it failed to create a file when use mount -t ceph. What I wonder is, Client A saved the Session and Dentry when create the first file. Why it failed the second time? How does cephfs prevent it? I am a student and I read the Client.cc but get no answer.
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