K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2018-07-05T20:20:06.653519Z
K 7
svn:log
V 714
Change the pNFS client so that it does not report an NFSERR_STALE from
an I/O attempt on a DS to the server via LayoutReturn.
The current FreeBSD client can generate these errors for an operational
DS while doing a recovery of a mirror after a mirrored DS has been repaired.
I am not sure why these errors occur, but my best current guess is a race
between the Layout Recall issued by the kernel code run from pnfsdscopymr(8)
and a Read operation on the DS for the file bing copied.
The errrors are not fatal, since the client falls back on doing I/O through
the MDS, which can do the I/O successfully as a proxy. (The fact that the
MDS can do this indicates that the file does still exist on the functioning
DS.)

END