What I try to do is to create a virtual cluster with 4 nodes in one
physical machine. Currently each node is a virtualbox VM. The cluster may
be scaled to include many more nodes later.
With the configuration file I have (part of Vagrantfile is shown below),
VMs are started sequentially. It takes a lot of time to start the complete
cluster, since every VM goes through a boot process as you pointed out. I
am wondering if there is any way to speed it up. I figure one possible
solution is that VMs are started in parallel.
(1..4).each do |i|
config.vm.define "node-#{i}" do |node|
node.vm.box = "base-node"
node.vm.provider :virtualbox do |v|
v.name = "node-#{i}"
v.customize ["modifyvm", :id, "--memory", "640"]
end
end
end
The main reason that I use virtualbox is I know virtualbox better and it
works well with vagrant. Going with a container is definitely an option. I
will look into this if I cannot make the current setup (based on
virtualbox) faster.
Thanks for the help.
On Friday, May 16, 2014 2:10:10 PM UTC-7, Sebastian Otaegui wrote:
>
> What I mean is that vmware and virtual box differ from docker/lxc in that
> vmware and virtual box virtualize hardware (create a software emulation of
> the hardware) while docker is a container.
>
> In Vmware and Virtualbox your guest os boots as if it was a machine while
> on docker the kernel is already instantiated and docker/lxc create an
> isolated compartment within, that is, there is no "real" boot process in
> docker.
>
> But I do not know what you are trying to do.
>
>
> Regards
>
>
> On Fri, May 16, 2014 at 3:12 PM, Yiliang Bao <[email protected]<javascript:>
> > wrote:
>
>> Hi Sebastian,
>>
>> Thanks for the quick help. Are you referring to the latest support of
>> Docker inside vagrant? I will take a look at Docker anyways.
>>
>> I do not understand what "virtualization environment" means in your
>> email. I assume you are not talking about the virtualization provided by
>> virtualbox or VMware, since that is what I using now.
>>
>> Thanks again!
>> Yiliang
>>
>> On Friday, May 16, 2014 12:12:13 PM UTC-7, Sebastian Otaegui wrote:
>>
>>> If you used docker it would probably be much faster, but is not
>>> virtualization.
>>>
>>> Do you need a virtualization environment?
>>>
>>>
>>>
>>>
>>> On Fri, May 16, 2014 at 2:10 PM, Yiliang Bao <[email protected]> wrote:
>>>
>>>> Hi,
>>>>
>>>> I am using vagrant to start many VMs for a test setup. Currently I am
>>>> using virtualbox, and it takes about 25 seconds to start a VM. It takes
>>>> about 8 seconds for Ubuntu server guest to boot, but there is some other
>>>> overhead.
>>>>
>>>> Since I may need to start many VMs, I am wondering if there is anything
>>>> I can do to speed it up. For example, is it possible to start VMs in
>>>> parallel. I do not mind to switch to other virtualization platform, like
>>>> VMware, if the virtualization platform is the limitation.
>>>>
>>>> Thanks,
>>>> Yiliang
>>>>
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>>>
>>>
>>>
>>> --
>>> Those who do not understand Unix are condemned to reinvent it, poorly.
>>> Any sufficiently recent Microsoft OS contains an ad hoc,
>>> informally-specified, bug-ridden, slow implementation of half of Unix.
>>>
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>
>
>
> --
> Those who do not understand Unix are condemned to reinvent it, poorly.
> Any sufficiently recent Microsoft OS contains an ad hoc,
> informally-specified, bug-ridden, slow implementation of half of Unix.
>
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