[Lustre-devel] open(), getattr(), and negative dentries

John Hammond jhammond at tacc.utexas.edu
Thu Jul 21 13:15:14 PDT 2011

Dear Lustre-devel,

It appears that stating a non-existent file on Lustre causes a negative
dentry to be created, while opening it does not.  If I understand
correctly, this also means that every open of a non-existent file that
misses the dentry cache causes an RPC to the MDS.  Is there a reason for
the difference?



John L. Hammond
TACC, The University of Texas at Austin
jhammond at tacc.utexas.edu

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