I'm having a problem with a nfs mount. Sometimes reading a file takes exactly 30 seconds to start. dmesg reporst:
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[ 75.759610] NFSD: starting 90-second grace period (net c03da538)
[ 195.978047] NFSD: Unable to end grace period: -110
NFSD: Unable to create client record on stable storage: -110
According to this link i have to mkdir /var/lib/nfs/v4recovery to match the content of /proc/fs/nfsd/nfsv4recoverydir. THe problem is that after reboot the dir is gone.
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root@nas:/ # cd /var/lib/nfs/
root@nas:/var/lib/nfs # ls -al
total 24
drwxr-xr-x 4 root root 4096 2015-08-19 14:45 .
drwxr-xr-x 3 root root 4096 2015-08-19 14:44 ..
-rw-r--r-- 1 root root 206 2015-08-19 14:45 etab
-rw------- 1 root root 0 2015-08-19 14:45 .etab.lock
-rw-r--r-- 1 root root 0 2015-08-19 14:45 export-lock
-rw-r--r-- 1 root root 0 2015-08-19 14:44 rmtab
drwx------ 2 nobody root 4096 2015-08-19 14:44 sm
drwx------ 2 nobody root 4096 2015-08-19 14:44 sm.bak
-rw-r--r-- 1 root root 4 2015-08-19 14:45 state
-rw-r--r-- 1 root root 0 2015-08-19 14:44 xtab
-rw------- 1 root root 0 2015-08-19 14:45 .xtab.lock
root@nas:/var/lib/nfs # mkdir /var/lib/nfs/v4recovery
root@nas:/var/lib/nfs # ls -al
total 28
drwxr-xr-x 5 root root 4096 2015-08-19 14:50 .
drwxr-xr-x 3 root root 4096 2015-08-19 14:44 ..
-rw-r--r-- 1 root root 206 2015-08-19 14:45 etab
-rw------- 1 root root 0 2015-08-19 14:45 .etab.lock
-rw-r--r-- 1 root root 0 2015-08-19 14:45 export-lock
-rw-r--r-- 1 root root 0 2015-08-19 14:44 rmtab
drwx------ 2 nobody root 4096 2015-08-19 14:44 sm
drwx------ 2 nobody root 4096 2015-08-19 14:44 sm.bak
-rw-r--r-- 1 root root 4 2015-08-19 14:45 state
drwxr-xr-x 2 root root 4096 2015-08-19 14:50 v4recovery
-rw-r--r-- 1 root root 0 2015-08-19 14:44 xtab
-rw------- 1 root root 0 2015-08-19 14:45 .xtab.lock
root@nas:/var/lib/nfs # reboot
root@nas:/var/lib/nfs #
And after reboot:
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login as: root
root@nas's password:
root@nas:/ # cd /var/lib/nfs/
root@nas:/var/lib/nfs # ls -al
total 24
drwxr-xr-x 4 root root 4096 2015-08-19 14:52 .
drwxr-xr-x 3 root root 4096 2015-08-19 14:51 ..
-rw-r--r-- 1 root root 206 2015-08-19 14:52 etab
-rw------- 1 root root 0 2015-08-19 14:52 .etab.lock
-rw-r--r-- 1 root root 0 2015-08-19 14:52 export-lock
-rw-r--r-- 1 root root 0 2015-08-19 14:51 rmtab
drwx------ 2 nobody root 4096 2015-08-19 14:51 sm
drwx------ 2 nobody root 4096 2015-08-19 14:51 sm.bak
-rw-r--r-- 1 root root 4 2015-08-19 14:52 state
-rw-r--r-- 1 root root 0 2015-08-19 14:51 xtab
-rw------- 1 root root 0 2015-08-19 14:52 .xtab.lock
root@nas:/var/lib/nfs #
:hammerhead