[Gluster-users] mkdir -p, cp -R fails

[Stefan Solbrig]

Dear all,

I identified the source of the problem:

if i set   "server.root-squash on", then the problem is 100% reproducible,
with "server.root-squash off", the problem vanishes.

This is true for glusterfs 3.12.3, 3.12.4 and 3.12.6  (haven't tested other versions)

best wishes,
Stefan

-- 
Dr. Stefan Solbrig
Universität Regensburg, Fakultät für Physik,
93040 Regensburg, Germany
Tel +49-941-943-2097


> Am 21.01.2018 um 13:15 schrieb Stefan Solbrig <stefan.solbrig at ur.de>:
> 
> Dear all,
> 
> I have problem with glusterfs 3.12.4  
> 
> mkdir -p  fails with "no data available" when umask is 0022, but works when umask is 0002. 
> 
> Also recursive copy  (cp -R  or cp -r) fails with "no data available", independly of the umask.
> 
> See below for an example to reproduce the error.  I already tried to change transport from rdma to tcp. (Changing the transport works, but the error persists.)
> 
> I'd be grateful for some insight.
> 
> I have small test system that still runs on glusterfs 3.12.3, where everything works fine.
> 
> best wishes,
> Stefan
> 
> 
> 
> [hpcadmin at pcph00131 bug]$ mount | grep gluster 
> qloginx:/glurch.rdma on /glurch type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,allow_other,max_read=131072)
> 
> 
> [hpcadmin at pcph00131 bug]$ pwd
> /glurch/test/bug
> 
> [hpcadmin at pcph00131 bug]$ umask 0022 
> [hpcadmin at pcph00131 bug]$ mkdir aa     #works
> [hpcadmin at pcph00131 bug]$ mkdir -p aa/bb/cc/dd 
> mkdir: cannot create directory ‘aa/bb’: No data available
> 
> 
> [hpcadmin at pcph00131 bug]$ umask 0002 
> [hpcadmin at pcph00131 bug]$ mkdir -p aa/bb/cc/dd 
> mkdir: cannot create directory ‘aa/bb’: No data available
> 
> [hpcadmin at pcph00131 bug]$ rm -rf aa 
> [hpcadmin at pcph00131 bug]$ mkdir -p aa/bb/cc/dd #works now
> # looks like all directories in the path of mkdir -p ...
> # have to be group-writable... 
> 
> [hpcadmin at pcph00131 bug]$ cp -R aa foo 
> cp: cannot create directory ‘foo/bb’: No data available
> # I cannot get this to work, independ of the umask...
> 
> [hpcadmin at pcph00131 bug]$ glusterd --version 
> glusterfs 3.12.4
> 
> [hpcadmin at pcph00131 bug]$ glusterfs  --version
> glusterfs 3.12.4
> 
> [hpcadmin at pcph00131 bug]$ glusterfsd --version
> glusterfs 3.12.4
> 
> [hpcadmin at pcph00131 bug]$ sudo gluster v status all 
> Status of volume: glurch
> Gluster process                             TCP Port  RDMA Port  Online  Pid
> ------------------------------------------------------------------------------
> Brick qloginx:/gl/lv1osb06/glurchbrick      0         49152      Y       17623
> Brick qloginx:/gl/lv2osb06/glurchbrick      0         49153      Y       17647
> Brick gluster2x:/gl/lv3osb06/glurchbrick    0         49152      Y       2845 
> Brick gluster2x:/gl/lv4osb06/glurchbrick    0         49153      Y       2868 
> 
> #note: im mounting on the qlogin
> 
> 
> 
> -- 
> Dr. Stefan Solbrig
> Universität Regensburg, Fakultät für Physik,
> 93040 Regensburg, Germany
> Tel +49-941-943-2097
> 
> 
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> Gluster-users at gluster.org
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