[Pvfs2-users] Error messages on client and server

[Murali Vilayannur]

Hi,
On a ^C, pvfs2-client cleans up all existing flows for that particular operation
and it also sends those warning messages to gossip/stderr.
They are really only warning messages in this case since it was
explicitly initiated by a ^C from user.
Perhaps, we should change some of the gossip_err() to a gossip_debug(), sam?

All that said,
It is a little worrying that mpif90 was taking so much time to compile
a hello world program..
Does it ever finish? Perhaps some I/O servers are done causing the stalls?
thanks,
Murali

On 1/30/07, Trach-Minh Tran <trach-minh.tran at epfl.ch> wrote:
> Hi Murali,
>
> In at least one case, I can provoke the error messages on the client.
> It was when I interrupt a simple compile "mpif90 hello.f90"
> on a pvfs2 mounted volume with ^C (because it took so long) ...
> and it is reproducible!
>
> Best regards,   -Minh.
>
> Murali Vilayannur wrote:
> > Hi Trach,
> > Hmm.. are you experiencing any I/O failures as a result of these?
> > It looks like some I/O timeouts may have caused the cancellations in
> > the flow layer or something.. I think Sam or Phil may have something
> > more insightful to say than me..
> > thanks!
> > Murali
> >
> > On 1/25/07, Trach-Minh Tran <trach-minh.tran at epfl.ch> wrote:
> >> Dear all,
> >>
> >> I have upgraded to pvfs-2.6.1 about 1 month ago and all seems to work
> >> fine since then. However, from time to time I get the following messagea
> >> on /tmp/pvfs2-client.log:
> >>
> >> ===
> >> [E 14:49:21.789014] fp_multiqueue_cancel: flow proto cancel called on
> >> 0xba49a8
> >> [E 14:49:21.801303] handle_io_error: flow proto error cleanup started
> >> on 0xba49a8, error_code: -1610612737
> >> [E 14:49:21.801381] handle_io_error: flow proto 0xba49a8 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.801404] fp_multiqueue_cancel: flow proto cancel called on
> >> 0xba5110
> >> [E 14:49:21.801422] handle_io_error: flow proto error cleanup started
> >> on 0xba5110, error_code: -1610612737
> >> [E 14:49:21.801458] handle_io_error: flow proto 0xba5110 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.801478] fp_multiqueue_cancel: flow proto cancel called on
> >> 0xba5fe0
> >> [E 14:49:21.801495] handle_io_error: flow proto error cleanup started
> >> on 0xba5fe0, error_code: -1610612737
> >> [E 14:49:21.801529] handle_io_error: flow proto 0xba5fe0 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.801554] fp_multiqueue_cancel: flow proto cancel called on
> >> 0xba6748
> >> [E 14:49:21.801570] handle_io_error: flow proto error cleanup started
> >> on 0xba6748, error_code: -1610612737
> >> [E 14:49:21.801631] handle_io_error: flow proto 0xba6748 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.801650] fp_multiqueue_cancel: flow proto cancel called on
> >> 0xba6eb0
> >> [E 14:49:21.801670] handle_io_error: flow proto error cleanup started
> >> on 0xba6eb0, error_code: -1610612737
> >> [E 14:49:21.801739] handle_io_error: flow proto 0xba6eb0 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.801827] handle_io_error: flow proto 0xba49a8 error cleanup
> >> finished, error_code: -1610612737
> >> [E 14:49:21.801852] handle_io_error: flow proto 0xba5110 error cleanup
> >> finished, error_code: -1610612737
> >> [E 14:49:21.801873] handle_io_error: flow proto 0xba5fe0 error cleanup
> >> finished, error_code: -1610612737
> >> [E 14:49:21.801893] handle_io_error: flow proto 0xba6748 error cleanup
> >> finished, error_code: -1610612737
> >> [E 14:49:21.801916] handle_io_error: flow proto 0xba6eb0 error cleanup
> >> finished, error_code: -1610612737
> >> ===
> >>
> >> and at the same time on 5 of my data servers the following messages
> >> (produced here
> >> only on 1 server) appear in /tmp/pvfs2-server.log:
> >>
> >> ===
> >> [E 14:49:21.804608] handle_io_error: flow proto error cleanup started
> >> on 0x119b830, error_code: -104
> >> [E 14:49:21.812521] handle_io_error: flow proto 0x119b830 canceled 1
> >> operations, will clean up.
> >> [E 14:49:21.812543] handle_io_error: flow proto 0x119b830 error
> >> cleanup finished, error_code: -104
> >> ===
> >>
> >> Do I have to worry about that?
> >>
> >> Thanks for any infos,   -Minh.
> >> _______________________________________________
> >> Pvfs2-users mailing list
> >> Pvfs2-users at beowulf-underground.org
> >> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
> >>
> >
>
>
> --
> Dr. Trach-Minh Tran
> CRPP/SB/EPFL http://crppwww.epfl.ch
> Swiss Federal Institute of Technology
> CH-1015 Lausanne
> Office: http://plan.epfl.ch/?room=PPB111
> Tel: +41 21 693 4569
> Fax: +41 21 693 5176
>