Hi Eli,
No, unfortunately we found no explanation as yet. We moved the web site
off of Lustre/NFS but as time permits we may attempt tracing the problem
further.
Eric
On 12/15/2015 10:50 AM, E.S. Rosenberg wrote:
Hi Eric,
Since we also have some issues with servers accessing files this issue
interests me...
Did you find anything on this?
Thanks,
Eli
On Mon, Nov 30, 2015 at 7:53 PM, Eric Kolb <ek...@uvic.ca
<mailto:ek...@uvic.ca>> wrote:
Hello,
Perhaps someone has seen a similar issue? If so any insight would be
appreciated.
We recently migrated some websites from an NFS share by which the
NFS server is exporting a share sitting on a Lustre mount. Below is
the issue.
- sftp a file to website.ca <http://website.ca> - the load balancer
will direct session to server1 or server2, let us say server1 in
this case
- Accessing the file with Apache via server1 works but via server2 a
NFS EIO -13 error is encountered
- On server1 (or server2) copy the file to /dev/null makes the file
accessible to Apache on either server1 or server2
- As work around sftp file to a temporary location, then ssh into
website.ca <http://website.ca> and "cp tmp/file.jpeg www/file.jpeg",
this allows then
Apache on either server1 or server2 to access the file
- Created an lseek C program to try mimicking a captured Apache
strace but it shows success on any combination of file access scenarios
Prior to adding in Lustre no such such issues were encountered.
Thanks,
--
Eric Kolb
DCS - UVic Systems
University of Victoria
Office: 250-721-7658 <tel:250-721-7658>
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