[Lustre-discuss] ll_glimpse_size() causing intermittent EIO

[Fan Yong]

  On 9/17/10 2:43 AM, Fraser McCrossan wrote:
>    We're seeing a problem recently with a 1.8.4 server and both 1.8.2 and
> 1.8.4 clients. We get intermittent log entries on the client like this:
>
> LustreError: 32493:0:(file.c:995:ll_glimpse_size()) obd_enqueue returned
> rc -5, returning -EIO
>
> Occasionally we get "rc -4" instead of -5. The client code fails with an
> I/O error, as you'd expect. We can't find matching log entries on the
> server.
>
> Trying the same file on the same or different clients again a few
> minutes later works fine. We're seeing this on lots of different clients
> but intermittently and fairly rarely, but it obviously it tends to crash
> user jobs. Any ideas what could be causing it?
>
Have you compared your issues with Lustre bug 22622?
https://bugzilla.lustre.org/show_bug.cgi?id=22622
Some similar, but not sure. Good Luck.

Cheers,
Nasf