[Gluster-users] Cannot see all data in mount

[Paul van der Vlis]

Hello Strahil,

Thanks for your answer. I don't find the word "sharding" in the
configfiles. There is not much shared data (24GB), and only 1 brick:
---
root at xxx:/etc/glusterfs# gluster volume info DATA

Volume Name: DATA
Type: Distribute
Volume ID: db53ece1-5def-4f7c-b59d-3a230824032a
Status: Started
Snapshot Count: 0
Number of Bricks: 1
Transport-type: tcp
Bricks:
Brick1: xxx-vpn:/DATA
Options Reconfigured:
transport.address-family: inet
nfs.disable: on
----
(I have edited this a bit for privacy of my customer).

I think they have used glusterfs because it can do ACLs.

With regards,
Paul van der Vlis


Op 15-05-19 om 14:59 schreef Strahil Nikolov:
> Most probably you use sharding , which splits the files into smaller
> chunks so you can fit a 1TB file into gluster nodes with bricks of
> smaller size.
> So if you have 2 dispersed servers each having 500Gb brick->  without
> sharding you won't be able to store files larger than the brick size -
> no matter you have free space on the other server.
> 
> When sharding is enabled - you will see on the brick the first shard as
> a file and the rest is in a hidden folder called ".shards" (or something
> like that).
> 
> The benefit is also viewable when you need to do some maintenance on a
> gluster node, as you will need to heal only the shards containing
> modified by the customers' data.
> 
> Best Regards,
> Strahil Nikolov
> 
> 
> В сряда, 15 май 2019 г., 7:31:39 ч. Гринуич-4, Paul van der Vlis
> <paul at vandervlis.nl> написа:
> 
> 
> Hello,
> 
> I am the new sysadmin of an organization what uses Glusterfs.
> I did not set it up, and I don't know much about Glusterfs.
> 
> What I do not understand is that I do not see all data in the mount.
> Not as root, not as a normal user who has privileges.
> 
> When I do "ls" in one of the subdirectories I don't see any data, but
> this data exists at the server!
> 
> In another subdirectory I see everything fine, the rights of the
> directories and files inside are the same.
> 
> I mount with something like:
> /bin/mount -t glusterfs -o acl 10.8.0.1:/data /data
> I see data in /data/VOORBEELD/, and I don't see any data in /data/ALGEMEEN/.
> 
> I don't see something special in /etc/exports or in /etc/glusterfs on
> the server.
> 
> Is there maybe a mechanism in Glusterfs what can exclude data from
> export?  Or is there a way to debug this problem?
> 
> With regards,
> Paul van der Vlis
> 
> ----
> # file: VOORBEELD
> # owner: root
> # group: secretariaat
> # flags: -s-
> user::rwx
> group::rwx
> group:medewerkers:r-x
> mask::rwx
> other::---
> default:user::rwx
> default:group::rwx
> default:group:medewerkers:r-x
> default:mask::rwx
> default:other::---
> 
> # file: ALGEMEEN
> # owner: root
> # group: secretariaat
> # flags: -s-
> user::rwx
> group::rwx
> group:medewerkers:r-x
> mask::rwx
> other::---
> default:user::rwx
> default:group::rwx
> default:group:medewerkers:r-x
> default:mask::rwx
> default:other::---
> ------
> 
> 
> 
> 
> 
> -- 
> Paul van der Vlis Linux systeembeheer Groningen
> https://www.vandervlis.nl/
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-- 
Paul van der Vlis Linux systeembeheer Groningen
https://www.vandervlis.nl/