How to integrate HDFS to CloudStack

[Ivson Borges <iv...@gmail.com>]

How to use HDFS as Primary storage? 

NFS has not fault-tolerant feature. I want to use HDFS for Primary Storage in CS to garantee fault-tolerant. Its possible?

Re: How to integrate HDFS to CloudStack

[Ivan Kudryavtsev <iv...@bw-sw.com>]

Looks like a joke. HDFS is not an FS you WANT or CAN use for VM
filesystems.
Its architecture is completely different from what POSIX-compliant OS wants
to keep QCOW2 images (or even RAW images).

If you want fault-tolerant FS, use Ceph or Gluster or even NFS over DRBD.
NFS is a stateless protocol, failover is just fine with VRRP or another
shared IP option, but writeback options on the storage host can influence
of course, Ceph or Gluster is a way to go.


On Wed, Oct 20, 2021 at 10:53 PM <nu...@li.nux.ro> wrote:

> IS HDFS still a thing? :)
> I thought those things were horrible and slow.
>
> Anyway, you can in theory use it via a "shared mount point" type of
> primary storage. I hope you are on KVM or XCP-ng.
>
> Why not look at more modern stuff such as CEPH or at least Glusterfs?
>
> Regards
>
> On 2021-10-20 16:24, Ivson Borges wrote:
> > How to use HDFS as Primary storage?
> >
> > NFS has not fault-tolerant feature. I want to use HDFS for Primary
> > Storage in CS to garantee fault-tolerant. Its possible?
>

Re: How to integrate HDFS to CloudStack

[nu...@li.nux.ro]

IS HDFS still a thing? :)
I thought those things were horrible and slow.

Anyway, you can in theory use it via a "shared mount point" type of 
primary storage. I hope you are on KVM or XCP-ng.

Why not look at more modern stuff such as CEPH or at least Glusterfs?

Regards

On 2021-10-20 16:24, Ivson Borges wrote:
> How to use HDFS as Primary storage?
> 
> NFS has not fault-tolerant feature. I want to use HDFS for Primary
> Storage in CS to garantee fault-tolerant. Its possible?