Hello,
we have the same problem here after update to Opensolaris 2009.06 SU7
(+IDR30+35)
on a 40 clients production system.
About every second day one of our servers looses state, and gives the output
below on snoop
(numerous reopen attempts with a NFS4ERR_NO_GRACE error). All clients hang,
since
they don't get their data, only a restart of the nfs/server process cures this
problem.
This seems to be a serious bug in the NFS module introduced recently in both
Opensolaris
support line and solaris 10 u8.
sun -> local-s11 NFS R 4 (open ) NFS4ERR_STALE_CLIENTID PUTFH
NFS4_OK OPEN NFS4ERR_STALE_CLIENTID
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=B5F3 OPEN OT=NC SQ=14571
CT=P DT=N AC=W DN=N OO=0955 GE
TFH GETATTR 10011a b0a23a
sun -> local-s11 NFS R 4 (reopen ) NFS4ERR_NO_GRACE PUTFH NFS4_OK
OPEN NFS4ERR_NO_GRACE
? -> (multicast) ETHER Type=0001 (LLC/802.3), size=52 bytes
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=92CA OPEN OT=NC SQ=14539
CT=P DT=N AC=R DN=N OO=0A4C GE
TFH GETATTR 10011a b0a23a
local-s11 -> sun TCP D=2049 S=1023 Ack=293438085 Seq=4069541650 Len=0
Win=64074 Options=<nop,nop,tstamp
25776951 188898831>
local-s11 -> sun TCP D=2049 S=1023 Ack=293438153 Seq=4069541650 Len=0
Win=64074 Options=<nop,nop,tstamp
25776951 188898907>
sun -> local-s11 NFS R 4 (reopen ) NFS4ERR_NO_GRACE PUTFH NFS4_OK
OPEN NFS4ERR_NO_GRACE
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=AA7B OPEN
imksuns11:1.log OT=NC SQ=14572 CT=N AC=W DN=N
OO=0955 GETFH GETATTR 10011a b0a...
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=95AC OPEN start_version
OT=NC SQ=14540 CT=N AC=R DN=N O
O=0A4C GETFH GETATTR 10011a b0a23a
sun -> local-s11 TCP D=1023 S=2049 Ack=4069542150 Seq=293438289 Len=0
Win=64074 Options=<nop,nop,tstamp
188898915 25776951>
sun -> local-s11 NFS R 4 (reopen ) NFS4_OK PUTFH NFS4_OK OPEN
NFS4_OK ST=1A6F:7271 RF=PL DT=N GETFH
NFS4_OK FH=92CA GETATTR NFS4_OK
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=92CA OPEN OT=NC SQ=14539
CT=P DT=N AC=R DN=N OO=0A0F GE
TFH GETATTR 10011a b0a23a
sun -> local-s11 NFS R 4 (reopen ) NFS4ERR_NO_GRACE PUTFH NFS4_OK
OPEN NFS4ERR_NO_GRACE
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=95AC OPEN start_version
OT=NC SQ=14540 CT=N AC=R DN=N O
O=0A0F GETFH GETATTR 10011a b0a23a
sun -> local-s11 NFS R 4 (reopen ) NFS4_OK PUTFH NFS4_OK OPEN
NFS4_OK ST=1B35:7271 RF=PL DT=N GETFH
NFS4_OK FH=92CA GETATTR NFS4_OK
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=92CA OPEN OT=NC SQ=14539
CT=P DT=N AC=R DN=N OO=0AEE GE
TFH GETATTR 10011a b0a23a
sun -> local-s11 NFS R 4 (reopen ) NFS4ERR_NO_GRACE PUTFH NFS4_OK
OPEN NFS4ERR_NO_GRACE
local-s11 -> sun NFS C 4 (reopen ) PUTFH FH=95AC OPEN start_version
OT=NC SQ=14540 CT=N AC=R DN=N O
NFS4ERR_NO_GRACE
A reclaim of client state was attempted in circumstances in
which the server cannot guarantee that conflicting state has
not been provided to another client. This can occur because
the reclaim has been done outside of the grace period of the
server, after the client has done a RECLAIM_COMPLETE operation,
or because previous operations have created a situation in which
the server is not able to determine that a reclaim-interfering
edge condition does not exist.
--
This message posted from opensolaris.org
