Ran
2010-Jan-30 14:13 UTC
[Gluster-users] I/O fair share to avoid I/O bottlenecks on small clsuters
Hi , I recently posted an issue regarding a situation that happen when say 1 virtual machine images takes down the entire server IO then the entire storage become slow in such way that noting work emails , web etc... gluster gays posted that virtual machine is a main goal of the storage and that they probebly implement a fair share IO options to avoid this cases . Can anyone tell me what are the plans for this , it apear to me that this is 1 of the most important issues on such storage seens it is not possible to run more then a few virtual machins in parallel . Many thanks ,
Mickey Mazarick
2010-Jan-31 06:11 UTC
[Gluster-users] I/O fair share to avoid I/O bottlenecks on small clsuters
Can you tell us a little more about your setup? I'm running many hundreds of vms on our cluster but I found infiniband is necessary if you have any large amount of io (databases, lots of drive access etc). You may simply be saturating your io if you only have a single gigabit interface to your storage. Things like NFS mount can direct all your io down one gig link and can be the death knell to your distributed parallel filer. -Mic Ran wrote:> Hi , > I recently posted an issue regarding a situation that happen when > say 1 virtual machine images takes down the entire server IO > then the entire storage become slow in such way that noting work > emails , web etc... > gluster gays posted that virtual machine is a main goal of the storage > and that they probebly implement a fair share IO options to avoid this cases . > > Can anyone tell me what are the plans for this , it apear to me that > this is 1 of the most important issues on such storage seens it is not > possible to run more then a few virtual machins in parallel . > > Many thanks , > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users >