Hello
I'd like to understand what is the proper/safe way to
recover when a cephfs client becomes blocklisted by the MDS.
The man page of mount.ceph talks about recover_session=clean
option, but it has the following text I am not sure I am
interpreting correctly:
"After reconnect, file locks become stale because the MDS
loses track of them. If an inode contains any stale file
locks, read/write on the inode is not allowed until
applications release all stale file locks."
Does "application" in this context refer to the cephfs
kernel client or a user space process?
Does this mean that if the application terminates while the
client is blocklisted without releasing locks, the locked
inodes (and the files they belong to) become inaccessible
forever?
Is reboot the only safe way to deal with blocklisting,
assuming applications were writing to files when it happened?
Thanks very much
Vlad
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