[Lustre-discuss] more problems with lustre,

[Brock Palen]

I found today that a very large number of nodes who are lustre  
clients show ptlrpcd taking 100% cpu and the lustre mount is  
completely unavailable!

I have attached the output of 'lctl dk /tmp/data'  to this message.   
Any insight would be helpful.  I am afraid though that this with the  
problem of clients being evicted all the time, that our evaluation of  
lustre will end, and we will not be using it in the future :-(

When it works it works great,  but to our group we can not deal with  
how unstable it is.  We will try lustre again when it hits version  
2.0 (running 1.6.4.1 right now with patchless clients).  Thanks for  
all the help you have given us while we have been evaluating it!

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Brock Palen
www.umich.edu/~brockp
Center for Advanced Computing
brockp at umich.edu
(734)936-1985