[Gluster-users] Cannot see all data in mount

[Strahil Nikolov]

 It seems that I got confused.So you see the files on the bricks (servers) , but not when you mount glusterfs on the clients ?
If so - this is not the sharding feature as it works the opposite way.
Best Regards,Strahil Nikolov
    В четвъртък, 16 май 2019 г., 0:35:04 ч. Гринуич+3, Paul van der Vlis <paul at vandervlis.nl> написа:  
 
 Op 15-05-19 om 15:45 schreef Nithya Balachandran:
> Hi Paul,
> 
> A few questions:
> Which version of gluster are you using?

On the server and some clients: glusterfs 4.1.2
On a new client: glusterfs 5.5

> Did this behaviour start recently? As in were the contents of that
> directory visible earlier?

This directory was normally used in the headoffice, and there is direct
access to the files without Glusterfs. So I don't know.

With regards,
Paul van der Vlis

> Regards,
> Nithya
> 
> 
> On Wed, 15 May 2019 at 18:55, Paul van der Vlis <paul at vandervlis.nl
> <mailto:paul at vandervlis.nl>> wrote:
> 
>    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 <mailto: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/
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-- 
Paul van der Vlis Linux systeembeheer Groningen
https://www.vandervlis.nl/
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