[Gluster-users] self-heal impact on performance
Fernando Frediani (Qube)
fernando.frediani at qubenet.net
Thu Oct 4 08:50:32 UTC 2012
Joao, Gluster is not yet good to run Virtual Machines yet. That's a statement from RedHat sales. So although it works you will find issues like this.
From: gluster-users-bounces at gluster.org [mailto:gluster-users-bounces at gluster.org] On Behalf Of João Pagaime
Sent: 03 October 2012 17:40
To: Gluster-users at gluster.org
Subject: [Gluster-users] self-heal impact on performance
I'm testing glusterfs 3.3.0-1 on a couple of CentOS 6.3 servers,
than run KVM
after inserting a new empty brick due to a simulated failure, the Self-healing process kicked in, as expected
after that however the VMs became mostly unsuable due to IO delay
it looks like the Self-healing process doesn't let anything else run normally
I believe glusterfs 3.3 has some improvments to avoid this problem
is there some performe tunning that has to be done?
is there some specific command to start a special self-healing process for systems that have large files (lke virtualization systems)?
thanks, best regards,
PS: this probably isn't a new problem: I've picked up the email
subject from a message dating Mar 24 2011
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