[Gluster-users] Question to help clarify something with regard to GlusterFS

aytac zeren aytaczeren at gmail.com
Thu Feb 26 03:05:27 UTC 2015

Hello Tony,

You need to understand what Gluster is intended for and nature of
A database needs high iops rates because of continuous CRUD operations.
There are distributed solutions in the industry like hadoop.
For traditional database structures, it's better to keep database on a
block storage.
Don't confuse with DB and Virtualization. These both are different worlds
and has different characteristics.
Gluster is a file system not a storage appliance.
I recommend you to check block storage alternatives like iSCSI SAN
appliances for DB specific tasks in cost centric perspective.
For vmWare environment, VSAN and Raw Device Mapping would serve you best.

Best Regards
Aytac Zeren

On Thu, Feb 26, 2015 at 4:53 AM, Tony Harris <nethfel at gmail.com> wrote:

> Hi all,
> I've been experimenting with Gluster for about a week now trying to get a
> feel for it to see how it might work for us as a back end storage for our
> virtual hosts.  While I was reading one day I came across this:
> 15. I am getting weird errors and inconsistencies from a database I am
> running in a Gluster volume
> Unless your database does almost nothing, this is expected. Gluster does
> not support structured data (like databases) due to issues you will likely
> encounter when you have a high number of transactions being persisted, lots
> of concurrent connections, etc. Gluster *IS*, however, a perfect place to
> store your database backups.
> from the troubleshooting page.  This concerns me a little, but I want to
> make sure I understand whether this will affect me or not.  Ok, so my file
> store wouldn't be storing a database directly, but it would store a VM that
> within it would host a database (like MSSQL Server - and actually it would
> be a few VMs that would host databases, 2 MSSQL and several MySQL) - would
> this experience the same "inconsistencies" as if I had a database directly
> stored on gluster, or is it not a problem due to it being VM traffic rather
> than a bunch of separate connections to a DB stored in a GlusterFS?
> For now I've had to cross off Gluster, but I began to wonder if I
> understood the warning in troubleshooting correctly.
> Thanks in advance for any info!
> -Tony
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