[Gluster-users] writev: Transport endpoint is not connected

[Amar Tumballi Suryanarayan]

Hi Lindolfo,

Can you now share the 'gluster volume info' from your setup?

Please note some basic documentation on shard is available @
https://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/shard/

-Amar

On Wed, Jan 23, 2019 at 7:55 PM Lindolfo Meira <meira at cesup.ufrgs.br> wrote:

> Does this remark has anything to do with the problem I'm talking about?
> Because I took the time the recreate the volume, changing its type and
> enabling shard and the problem persists :/
>
>
> Lindolfo Meira, MSc
> Diretor Geral, Centro Nacional de Supercomputação
> Universidade Federal do Rio Grande do Sul
> +55 (51) 3308-3139
>
> On Wed, 23 Jan 2019, Raghavendra Gowdappa wrote:
>
> > On Wed, Jan 23, 2019 at 1:59 AM Lindolfo Meira <meira at cesup.ufrgs.br>
> wrote:
> >
> > > Dear all,
> > >
> > > I've been trying to benchmark a gluster file system using the MPIIO
> API of
> > > IOR. Almost all of the times I try to run the application with more
> than 6
> > > tasks performing I/O (mpirun -n N, for N > 6) I get the error: "writev:
> > > Transport endpoint is not connected". And then each one of the N tasks
> > > returns "ERROR: cannot open file to get file size, MPI MPI_ERR_FILE:
> > > invalid file, (aiori-MPIIO.c:488)".
> > >
> > > Does anyone have any idea what's going on?
> > >
> > > I'm writing from a single node, to a system configured for stripe over
> 6
> > > bricks. The volume is mounted with the options _netdev and
> transport=rdma.
> > > I'm using OpenMPI 2.1.2 (I tested version 4.0.0 and nothing changed).
> IOR
> > > arguments used: -B -E -F -q -w -k -z -i=1 -t=2m -b=1g -a=MPIIO. Running
> > > OpenSUSE Leap 15.0 and GlusterFS 5.3. Output of "gluster volume info"
> > > follows bellow:
> > >
> > > Volume Name: gfs
> > > Type: Stripe
> > >
> >
> > +Dhananjay, Krutika <kdhananj at redhat.com>
> > stripe has been deprecated. You can use sharded volumes.
> >
> >
> > > Volume ID: ea159033-5f7f-40ac-bad0-6f46613a336b
> > > Status: Started
> > > Snapshot Count: 0
> > > Number of Bricks: 1 x 6 = 6
> > > Transport-type: rdma
> > > Bricks:
> > > Brick1: pfs01-ib:/mnt/data/gfs
> > > Brick2: pfs02-ib:/mnt/data/gfs
> > > Brick3: pfs03-ib:/mnt/data/gfs
> > > Brick4: pfs04-ib:/mnt/data/gfs
> > > Brick5: pfs05-ib:/mnt/data/gfs
> > > Brick6: pfs06-ib:/mnt/data/gfs
> > > Options Reconfigured:
> > > nfs.disable: on
> > >
> > >
> > > Thanks in advance,
> > >
> > > Lindolfo Meira, MSc
> > > Diretor Geral, Centro Nacional de Supercomputação
> > > Universidade Federal do Rio Grande do Sul
> > > +55 (51) 3308-3139_______________________________________________
> > > Gluster-users mailing list
> > > Gluster-users at gluster.org
> > > https://lists.gluster.org/mailman/listinfo/gluster-users
> > _______________________________________________
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-- 
Amar Tumballi (amarts)
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