[Gluster-users] Can't write to volume using vim/nano

[Jim Kinney]

That really sounds like a bug with the sharding. I'm not using sharding
on my setup and files are writeable (vim) with 2 bytes and no errors
occur.Perhaps the small size is cached until it's large enough to
trigger a write
On Wed, 2019-01-23 at 21:46 -0200, Lindolfo Meira wrote:
> Also I noticed that any subsequent write (after the first write with
> 340 bytes or more), regardless the size, will work as expected.
> 
> Lindolfo Meira, MScDiretor Geral, Centro Nacional de
> SupercomputaçãoUniversidade Federal do Rio Grande do Sul+55 (51)
> 3308-3139
> On Wed, 23 Jan 2019, Lindolfo Meira wrote:
> > Just checked: when the write is >= 340 bytes, everything works as
> > supposed. If the write is smaller, the error takes place. And when
> > it does, nothing is logged on the server. The client, however, logs
> > the following:
> > [2019-01-23 23:28:54.554664] W [MSGID: 103046]
> > [rdma.c:3502:gf_rdma_decode_header] 0-rpc-transport/rdma: received
> > a msg of type RDMA_ERROR
> > [2019-01-23 23:28:54.554728] W [MSGID: 103046]
> > [rdma.c:3939:gf_rdma_process_recv] 0-rpc-transport/rdma: peer
> > (172.24.1.6:49152), couldn't encode or decode the msg properly or
> > write chunks were not provided for replies that were bigger than
> > RDMA_INLINE_THRESHOLD (2048)
> > [2019-01-23 23:28:54.554765] W [MSGID: 114031] [client-rpc-
> > fops_v2.c:680:client4_0_writev_cbk] 0-gfs-client-5: remote
> > operation failed [Transport endpoint is not connected]
> > [2019-01-23 23:28:54.554850] W [fuse-bridge.c:1436:fuse_err_cbk] 0-
> > glusterfs-fuse: 1723199: FLUSH() ERR => -1 (Transport endpoint is
> > not connected)
> > 
> > 
> > Lindolfo Meira, MScDiretor Geral, Centro Nacional de
> > SupercomputaçãoUniversidade Federal do Rio Grande do Sul+55 (51)
> > 3308-3139
> > On Wed, 23 Jan 2019, Lindolfo Meira wrote:
> > > Hi Jim. Thanks for taking the time.
> > > Sorry I didn't express myself properly. It's not a simple matter
> > > of permissions. Users can write to the volume alright. It's when
> > > vim and nano are used, or when small file writes are performed
> > > (by cat or echo), that it doesn't work. The file is updated with
> > > the write in the server, but it shows up as empty in the client.
> > > I guess it has something to do with the size of the write,
> > > because I ran a test writing to a file one byte at a time, and it
> > > never showed up as having any content in the client (although in
> > > the server it kept growing accordingly).
> > > I should point out that I'm using a sharded volume. But when I
> > > was testing a striped volume, it also happened. Output of
> > > "gluster volume info" follows bellow:
> > > Volume Name: gfsType: DistributeVolume ID: b5ef065f-1ba2-481f-
> > > 8108-e8f6d2d3f036Status: StartedSnapshot Count: 0Number of
> > > Bricks: 6Transport-type: rdmaBricks:Brick1: pfs01-
> > > ib:/mnt/dataBrick2: pfs02-ib:/mnt/dataBrick3: pfs03-
> > > ib:/mnt/dataBrick4: pfs04-ib:/mnt/dataBrick5: pfs05-
> > > ib:/mnt/dataBrick6: pfs06-ib:/mnt/dataOptions
> > > Reconfigured:nfs.disable: onfeatures.shard: on
> > > 
> > > 
> > > Lindolfo Meira, MScDiretor Geral, Centro Nacional de
> > > SupercomputaçãoUniversidade Federal do Rio Grande do Sul+55 (51)
> > > 3308-3139
> > > On Wed, 23 Jan 2019, Jim Kinney wrote:
> > > > Check permissions on the mount. I have multiple dozens of
> > > > systemsmounting 18 "exports" using fuse and it works for
> > > > multiple userread/write based on user access permissions to the
> > > > mount point space./home is mounted for 150+ users plus another
> > > > dozen+ lab storage spaces.I do manage user access with freeIPA
> > > > across all systems to keep thingsconsistent.On Wed, 2019-01-23
> > > > at 19:31 -0200, Lindolfo Meira wrote:
> > > > > Am I missing something here? A mere write operation, using
> > > > > vim ornano, cannot be performed on a gluster volume mounted
> > > > > over fuse! Whatgives?Lindolfo Meira, MScDiretor Geral, Centro
> > > > > Nacional deSupercomputaçãoUniversidade Federal do Rio Grande
> > > > > do Sul+55 (51)3308-
> > > > > 3139_______________________________________________Gluster-
> > > > > users mailing listGluster-users at gluster.org
> > > > > https://lists.gluster.org/mailman/listinfo/gluster-users
> > > > -- James P. Kinney III
> > > > Every time you stop a school, you will have to build a jail.
> > > > What yougain at one end you lose at the other. It's like
> > > > feeding a dog on hisown tail. It won't fatten the dog.- Speech
> > > > 11/23/1900 Mark Twain
> > > > http://heretothereideas.blogspot.com/
> > > > 
-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain

http://heretothereideas.blogspot.com/

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