Re: [HPDD-discuss] Infiniband & Lustre Module Unloading on RHEL 6.4
In my case, I'm seeing this occur on OSS's not unloading IB modules. The
errors we're seeing are the IB modules themselves failing to unload at
shutdown/rdma service stop due to remnant Lustre modules leaving them in
use. The OSTs seem to unmount without issue.
Andrew Wagner
Research System Administrator
Technical Computing
UW-Space Science and Engineering
AOSS Room 439
On 12/17/13 2:10 PM, Patrick Farrell wrote:
Andrew, Rob,
We may be seeing some related behavior here as well.
Can you give any more details about the errors you're getting on
shutdown/unmount?
Our problem manifested itself as the MDS not being able to unmount,
because it's waiting for communication from the clients, while
unmounting/shutting down. (Eventually, messages about hung threads
appear on the MDS.) It may not be the sane thing (we're seeing it
with 2.5 and have only begun seeing it recently), but it is similar
and happening on systems using IB.
--
Patrick Farrell
Developer, IO File Systems
Cray, Inc.
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