[LU-6404] unable to monut fs through router Created: 26/Mar/15  Updated: 01/Apr/15  Resolved: 01/Apr/15

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.5.3
Fix Version/s: None

Type: Bug Priority: Major
Reporter: Mahmoud Hanafi Assignee: Doug Oucharek (Inactive)
Resolution: Not a Bug Votes: 0
Labels: None

Attachments: File client.out.gz     File out1.gz    
Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

When trying to mount fs through router the mgs connects but never completes. the client gets this error

mount.lustre: mount 10.151.25.251@o2ib:/nbp12k at /nobackuptest failed: Input/output error
Is the MGS running?

out1.gz is logs from the mds/mgs
client.out.gz is logs from the client.

-client-
r733i3n15 ~ # lctl show_route
net o2ib hops 1 gw 10.153.20.77@o2ib233 up pri 0

-mgs-
service322 ~ # lctl show_route
net o2ib233 hops 1 gw 10.151.27.77@o2ib up pri 0

--router--
maia77 /proc/sys/lnet # cat /sys/module/lnet/parameters/forwarding
enabled

maia77 /proc/sys/lnet # lctl list_nids
10.151.20.77@o2ib
10.153.20.77@o2ib233



 Comments   
Comment by Peter Jones [ 26/Mar/15 ]

Mahmoud

Is this vanilla 2.5.3 or are any patches applied?

Peter

Comment by Mahmoud Hanafi [ 26/Mar/15 ]

It is not vanilla but should be very close.

Comment by Doug Oucharek (Inactive) [ 26/Mar/15 ]

From what you posted above, the router's o2ib address is 10.151.20.77 whereas the routing table on the MGS is going to 10.151.27.77 (third number is different).

Comment by Jay Lan (Inactive) [ 31/Mar/15 ]

Peter, as usual, our nas-2.5.3 git repo is at github:
https://github.com/jlan/lustre-nas/commits/nas-2.5.3

Not a vanilla 2.5.3, but close to what you have on b2_5 about 4 weeks ago.

Comment by Peter Jones [ 31/Mar/15 ]

Jay

Did you check out the apparent anomaly Doug highlighted above?

Peter

Comment by Mahmoud Hanafi [ 01/Apr/15 ]

please close this. Issue was resolved. I had typo in nid.

Comment by Peter Jones [ 01/Apr/15 ]

ok - thanks Mahmoud!

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