Nagios Support Forum

Posted: **Mon Mar 23, 2015 4:31 pm**

Do you have any automounted fs on the remotes. Could you post a /etc/fstab for us? And a mount cmd, Thanks.

Posted: **Mon Mar 23, 2015 4:50 pm**

This is just an example from one of the boxes having the issues.

FSTAB

/dev/VolGroup00/rootVol00 /                       ext3    defaults        1 1
/dev/VolGroup00/tmpVol00 /tmp                    ext3    defaults        1 2
/dev/VolGroup00/usrVol00 /usr                    ext3    defaults        1 2
/dev/VolGroup00/varVol00 /var                    ext3    defaults        1 2
LABEL=/boot             /boot                   ext3    defaults        1 2
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/dev/VolGroup00/swpVol06 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol03 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol01 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol08 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol02 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol07 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol05 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol04 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol00 swap                    swap    defaults        0 0
/dev/VolGroup00/swpVol09 swap                    swap    defaults        0 0
###########################################################################################
/dev/mapper/us1001p1    /us1001                 ext3    _netdev,defaults,acl    0 0
/dev/mapper/ur1001p1    /ur1001                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ut1002p1    /ut1002                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/un1001p1    /un1001                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/un1002p1    /un1002                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/uc1001p1    /uc1001                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/uf1001p1    /uf1001                 ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ud1007p1           /ud1007          ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ud1008p1           /ud1008          ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ud1010p1           /ud1010          ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ud1011p1           /ud1011          ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ud1012p1           /ud1012          ocfs2  _netdev,datavolume,nointr 0 0
/dev/mapper/ut1003p1            /ut1003         ocfs2  _netdev,datavolume,nointr 0 0
################################################################################################################
10.5.1.225:/interface   /interface                   nfs      _netdev,nolock,rw,hard,retry=3 0 0
#10.5.1.225:/archlog/PRODEBS   /archlog/PRODEBS                   nfs      _netdev,nolock,rw,hard,retry=3 0 0
10.5.2.6:/vol/vol_extn_NFS/qt_extn_chi_pap02_ua1002   /ua1002    nfs     _netdev,rw,hard,retry=3 0 0
10.5.2.6:/vol/vol_extn_NFS/qt_extn_chi_pap02_ua1001   /ua1001    nfs     _netdev,rw,hard,retry=3 0 0
10.5.2.6:/vol/vol_extn_NFS_temp/qt_backupnew /backupnew         nfs     _netdev,rw,hard,retry=3 0 0
#10.5.2.6:/vol/vol_extn_NFS_temp/qt_backupnew   /backupnew      nfs     _netdev,rw,nolock,soft,bg,retry=3 0 0
########################## FOR OATM Project - Feb 17 2014 ##############################
/dev/mapper/backupp1    /backup         ext3    _netdev,defaults,acl    0 0

procs/mounts

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rootfs / rootfs rw 0 0
/dev/root / ext3 rw,data=ordered 0 0
/dev /dev tmpfs rw 0 0
/proc /proc proc rw 0 0
/sys /sys sysfs rw 0 0
/proc/bus/usb /proc/bus/usb usbfs rw 0 0
devpts /dev/pts devpts rw 0 0
/dev/VolGroup00/tmpVol00 /tmp ext3 rw,data=ordered 0 0
/dev/VolGroup00/usrVol00 /usr ext3 rw,data=ordered 0 0
/dev/VolGroup00/varVol00 /var ext3 rw,data=ordered 0 0
/dev/sdcg1 /boot ext3 rw,data=ordered 0 0
tmpfs /dev/shm tmpfs rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
configfs /sys/kernel/config configfs rw 0 0
ocfs2_dlmfs /dlm ocfs2_dlmfs rw 0 0
10.5.1.225:/interface /interface nfs rw,vers=3,rsize=524288,wsize=524288,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.5.1.225 0 0
10.5.2.6:/vol/vol_extn_NFS/qt_extn_chi_pap02_ua1002 /ua1002 nfs rw,vers=3,rsize=65536,wsize=65536,hard,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.5.2.6 0 0
10.5.2.6:/vol/vol_extn_NFS/qt_extn_chi_pap02_ua1001 /ua1001 nfs rw,vers=3,rsize=65536,wsize=65536,hard,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.5.2.6 0 0
10.5.2.6:/vol/vol_extn_NFS_temp/qt_backupnew /backupnew nfs rw,vers=3,rsize=65536,wsize=65536,hard,proto=tcp,timeo=600,retrans=2,sec=sys,addr=10.5.2.6 0 0
/dev/mapper/us1001p1 /us1001 ext3 rw,data=ordered 0 0
/dev/mapper/ur1001p1 /ur1001 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ut1002p1 /ut1002 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/un1001p1 /un1001 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/un1002p1 /un1002 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/uc1001p1 /uc1001 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/uf1001p1 /uf1001 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ud1007p1 /ud1007 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ud1008p1 /ud1008 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ud1010p1 /ud1010 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ud1011p1 /ud1011 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/ud1012p1 /ud1012 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0
/dev/mapper/backupp1 /backup ext3 rw,data=ordered 0 0
/dev/mapper/ut1003p1 /ut1003 ocfs2 rw,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,datavolume 0 0

DF (hung after tempfs)

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Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-rootVol00
                       2031440   1556456    370128  81% /
/dev/mapper/VolGroup00-tmpVol00
                      10157368   9648492         0 100% /tmp
/dev/mapper/VolGroup00-usrVol00
                      15236080  11039008   3410640  77% /usr
/dev/mapper/VolGroup00-varVol00
                      15236080  14446204      3444 100% /var
/dev/sdcg1              100738     17343     78193  19% /boot
tmpfs                 66009236     61844  65947392   1% /dev/shm

Not sure about the questions you asked.

Posted: **Tue Mar 24, 2015 9:48 am**

Thanks for the info. To explain what I was asking for was, what options were used on the fstab nfs mount. The hard option retries indefinitely, and timeo states how long the NFS client waits for a response before it retries an NFS request. retrans the number of retries a request.

Anyway, having df -h hang, tells us it's not just the check that the system would have problems with on those NFS mounts. If you can, please try to exclude the NFS on the check_disk with the -X nfs added on the check. Otherwise I would suggest you check with your systems admin folks to see why that NFS mount is not working.

Posted: **Mon Mar 30, 2015 10:46 am**

I haven't solved the issue yet, but I know the reason. Our NFS shares are all mounted with HARD and standard is to also use intr so they can be interrupted, but apparently a good percentage don't have intr set as well.

Even if that is set though, sometimes the check_disk doesn't properly end the process when the timeout variable is reached. That might be a bug in the actual plugin though. Nothing else for this thread though, so please feel free to close it. I may end up reaching out to the plugin dev team in regards to the check_disk not properly closing on timeout.

Thanks

Posted: **Mon Mar 30, 2015 10:49 am**

Thanks Banditt for getting back on this issue. Hope you can have the timeout issue resolved even with the NFS issues. We'll close this. Thanks.

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