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тАО11-08-2010 06:01 AM
тАО11-08-2010 06:01 AM
nfs sporadic permission denied on automounted clients?
Hey;
We seemed to have had a sporadic nfs outage last night covering about four hours between two 11.11 systems.
On the client, in syslog, I can see the "automountd[###] server XXX not responding" and no other indications of a client side network outage.
The server side's syslog is showing no indication of anything amiss at all when the client's getting the permission denied messages.
netstat and lasncan show no errors..
If there were even a hint of any other network traffic being affected, I'd gleefully hand this off to the networking team; however, both systems show successful network connections throughout this time period.
Anyone have any other ideas on where I could check for a cause?
Thanks.
Doug O'Leary
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
We seemed to have had a sporadic nfs outage last night covering about four hours between two 11.11 systems.
On the client, in syslog, I can see the "automountd[###] server XXX not responding" and no other indications of a client side network outage.
The server side's syslog is showing no indication of anything amiss at all when the client's getting the permission denied messages.
netstat and lasncan show no errors..
If there were even a hint of any other network traffic being affected, I'd gleefully hand this off to the networking team; however, both systems show successful network connections throughout this time period.
Anyone have any other ideas on where I could check for a cause?
Thanks.
Doug O'Leary
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
3 REPLIES 3
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тАО11-08-2010 06:59 AM
тАО11-08-2010 06:59 AM
Re: nfs sporadic permission denied on automounted clients?
Shalom,
Time to review the /etc/exports settings, and nfsstat output.
Also, the specific share points, check the permissions, inconsistency in the /etc/passwd numeric user id's of certain users can cause this problem.
SEP
Time to review the /etc/exports settings, and nfsstat output.
Also, the specific share points, check the permissions, inconsistency in the /etc/passwd numeric user id's of certain users can cause this problem.
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО11-08-2010 07:33 AM
тАО11-08-2010 07:33 AM
Re: nfs sporadic permission denied on automounted clients?
Hey;
Thanks for the reply. Most of those things would cause permission problems all the time. This one's sporadic. It's working now and was working maybe about 85% of the time throughout the four hour period of "outage" time.
To the best of my knowledge, nothing was changing in that time. I certainly wasn't up at 0400 mucking about with permissions.
nfsstat has some significant amount of data; hwoever, the boxes have been up for about 180 days each. I'm going to zero those stats out; however, before doing so was hoping to get an idea of which column(s) I should be looking at, specifically. Any suggestions?
thanks again for the reply.
Doug O'leary
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
Thanks for the reply. Most of those things would cause permission problems all the time. This one's sporadic. It's working now and was working maybe about 85% of the time throughout the four hour period of "outage" time.
To the best of my knowledge, nothing was changing in that time. I certainly wasn't up at 0400 mucking about with permissions.
nfsstat has some significant amount of data; hwoever, the boxes have been up for about 180 days each. I'm going to zero those stats out; however, before doing so was hoping to get an idea of which column(s) I should be looking at, specifically. Any suggestions?
thanks again for the reply.
Doug O'leary
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
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тАО11-16-2010 03:51 AM
тАО11-16-2010 03:51 AM
Re: nfs sporadic permission denied on automounted clients?
If the server is sporadically not responding you could check the corresponding System Activity Records..
Look for sudden increases in system %CPU
that accompany NFS request spikes.
Is there another client that is active
at this time - just one process stuck in a loop
can load an NFS server.
From what you've said it doesn't seem
like a permissions thing.
Look for sudden increases in system %CPU
that accompany NFS request spikes.
Is there another client that is active
at this time - just one process stuck in a loop
can load an NFS server.
From what you've said it doesn't seem
like a permissions thing.
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