[PVE-User] Several issues with gluster as storage.

Angel Docampo adocampo at dltec.net
Mon Jan 27 15:52:11 CET 2014

El 27/01/14 14:38, Leslie-Alexandre DENIS escribió:
> Hello Angel,
> Did you figure it out why you had timeout problem ?
Yes, I did. The main problem was the underlying filesystem. I do not 
know why, but XFS does not thin provision the space of the hard disk 
when create the virtual machine. Then proxmox times out at 30 seconds, 
or so. Because it should be matter of one or two seconds.

Changing it to ext4 solved the main problem.

Another issue, even with ext4, was the timing when in the gluster 
cluster (2 nodes), there were one node down. There is a bug on gfapi 
that times out the proxmox cluster when trying to start a VM on that 
gluster storage.

While gluster developers fix that bug. I lowered the value on 
/proc/sys/net/ipv4/tcp_syn_retries from 5 to 3 to reduce the time 
necessary to start the VM and now everything works,

> Regards
> Le 11/12/2013 17:28, Angel Docampo a écrit :
>> Hello,
>> There is no special topology between the nodes, it's a 10Gb dedicated 
>> segment only for that purpose.
>> To mount glusterfs into PVE you can follow this tutorial
>> http://www.jamescoyle.net/how-to/533-glusterfs-storage-mount-in-proxmox
>> That is the proxmox way, and it's supposed to not to use FUSE, but to 
>> use the gluster translator (correct me if I'm wrong) and therefore no 
>> mount options are needed.
>> Regards,
>> Angel Docampo
>> Datalab Tecnologia, s.a.
>> Castillejos, 352 - 08025 Barcelona
>> Tel. 93.476.69.10 - 6711


*Angel Docampo
*Datalab Tecnologia, s.a.*
Castillejos, 352 - 08025 Barcelona
Tel. 93 476 69 14 - Ext: 706
Mob. 670.299.381

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