See vzctl set --name Steve Wray wrote: > Hi there, > I'm a long time user of Xen virtualisation and have been evaluating > OpenVZ as a replacement for certain applications. > > OpenVZ appears to be technically superior under certain conditions and > I hope to iron out the issues that I have come across. > > The main issue confronting me at this time is scalability of > management; OpenVZ may scale well with respect to performance and > resource usage but at this time I don't see it scaling well when it > comes to management of virtual machines. > > I am sure that I must be missing something obvious since its a pretty > basic issue. I've searched extensively for some info on this but found > nothing. > > The problem? > > Numeric rather than symbolic identification of virtual machines. > > When I start a domU (a Xen virtual machine) in Xen I direct 'xm > create' at the config file the name of which corresponds to the name > of that domU. > > When I list currently running machines in Xen I see a listing of the > names of the Xen domUs and their corresponding numeric IDs. > > When I create a logical volume for a Xen domU I create that volume > based on the name of the corresponding Xen instance. > > In each case I try to ensure consistency by making the names of the > Xen domUs correspond to the hostnames of the servers which those domUs > are running. Host foo is on the domU named foo and is in a logical > volume named foo. To start domU foo I run 'xm create > /etc/xen/domains/foo.conf'. This scales well and makes things very > nice and obvious. > > OpenVZ seems to do away with symbolic names referring in all instances > to numeric ids, a bit like not using DNS but putting an IP address > into a URL. > > I have an awful feeling that when the pager goes off at 2am the person > on call, bleary-eyed and tired, will make some horrible mistake when > trying to mentally map numeric identifiers to server hostnames. This > is what I mean by 'not scaling well'. Use of numeric identifiers may > work ok when there is only one or two, but when there may be a dozen > things will get out of hand. > > I am sure that there must be a way to use symbolic names instead of > numbers in OpenVZ but I can't for the life of me find out how. > > Thanks! > > > > _______________________________________________ > Users mailing list > Users@openvz.org > https://openvz.org/mailman/listinfo/users
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