[lustre-discuss] unmount FS when endpoint is gone

Florin Andrei florin at andrei.myip.org
Mon Dec 20 15:53:59 PST 2021

We've created a few Lustre FS endpoints in AWS. They were mounted on a 
system. The Lustre endpoints got terminated soon after that, and others 
were created instead.

Now the old Lustre filesystems appear to be mounted on that node, and 
there's automation trying to unmount them, resulting in a very large 
number of umount processes just hanging. In dmesg I see this message 
repeated many, many times:

Lustre: 919:0:(client.c:2116:ptlrpc_expire_one_request()) @@@ Request 
sent has failed due to network error:

What is the recommended procedure to unmount those FSs? Just running 
umount manually also hangs indefinitely. I would prefer to not reboot 
that node.

Florin Andrei

More information about the lustre-discuss mailing list