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

[Raghavendra Gowdappa]

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_______________________________________________
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> Gluster-users at gluster.org
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