Since RHEL6.1, all NFS operations trigger authrefrsh counters to climb

Solution Verified - Updated -

Issue

  • nfsstat returns with a high authrefrsh value. On Red Hat Enterprise Linux 6.0 and below this value normally equals 0.
# cat /etc/redhat-release;nfsstat -c|grep authrefrsh -A1;cp -fR /var/log/* /mnt;nfsstat -c|grep authrefrsh -A1
Red Hat Enterprise Linux Server release 6.1 (Santiago)
calls      retrans    authrefrsh
1600       0          1600   
calls      retrans    authrefrsh
2354       0          2354

# cat /etc/redhat-release;nfsstat -c|grep authrefrsh -A1;cp -fR /var/log/* /mnt;nfsstat -c|grep authrefrsh -A1
Red Hat Enterprise Linux Server release 6.0 (Santiago)
calls      retrans    authrefrsh
21         0          0      
calls      retrans    authrefrsh
178        0          0

Environment

  • Red Hat Enterprise Linux 6.1 and above

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