[ovirt-users] Re: cluster 4 pc's for more scanning power?

2018-12-03 Thread Staniforth, Paul
Hello Peter,
   if you install it on one VM it will only run on one of 
the hosts however if you had a distributed scanner it could run on multiple 
hosts. I think there was some work with a distibuted scanner in docker (don't 
know if there is openshift or kubernetes) but it may be better to run it in a 
docker or kubernetes cluster rather than oVirt.

Regards,
 Paul S.

From: Peter C. 
Sent: 01 December 2018 00:15
To: users@ovirt.org
Subject: [ovirt-users] cluster 4 pc's for more scanning power?

Hello and sorry for the ignorance behind this question. I've been reading about 
various scale out, "hyper convergence" solutions and want to ask this about 
oVirt.

I do vulnerability scanning on my company's assets. I do it from an obsolete 
laptop that was given to me. The load goes over 13 sometimes, and the scans 
take a long time.

If I built an oVirt cluster from 4 or 5 desktop pc's, build  VM to run OpenVAS, 
would the cpu load demanded by the scanning be spread accross the 3-4 hosts, 
not inlcuding the management host, and therby give my scans more CPU power?

If not oVirt, is there another project that would be better suited to what I'm 
trying to achieve?

Qualifiers:
-I'm not asking if this is the best way to get high-load scanning done. I'm 
just asking if I'll get the combined power from the cpu cores of all the host 
machines. The scanning jobs thread already.
-I know it would probably be more efficient to get a powerful multi core 
workstation or server to do this. That is not my question.
-The pc's are perfectly good, they are just not being used and won't be used 
for anything else.

Thanks in advance.
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[ovirt-users] Re: cluster 4 pc's for more scanning power?

2018-12-03 Thread Peter Collins
Thanks very much for these suggestions and assistance.

Peter

On Mon., Dec. 3, 2018, 3:26 a.m. Staniforth, Paul <
p.stanifo...@leedsbeckett.ac.uk wrote:

> Hello Peter,
>if you install it on one VM it will only run on one
> of the hosts however if you had a distributed scanner it could run on
> multiple hosts. I think there was some work with a distibuted scanner in
> docker (don't know if there is openshift or kubernetes) but it may be
> better to run it in a docker or kubernetes cluster rather than oVirt.
>
> Regards,
>  Paul S.
> 
> From: Peter C. 
> Sent: 01 December 2018 00:15
> To: users@ovirt.org
> Subject: [ovirt-users] cluster 4 pc's for more scanning power?
>
> Hello and sorry for the ignorance behind this question. I've been reading
> about various scale out, "hyper convergence" solutions and want to ask this
> about oVirt.
>
> I do vulnerability scanning on my company's assets. I do it from an
> obsolete laptop that was given to me. The load goes over 13 sometimes, and
> the scans take a long time.
>
> If I built an oVirt cluster from 4 or 5 desktop pc's, build  VM to run
> OpenVAS, would the cpu load demanded by the scanning be spread accross the
> 3-4 hosts, not inlcuding the management host, and therby give my scans more
> CPU power?
>
> If not oVirt, is there another project that would be better suited to what
> I'm trying to achieve?
>
> Qualifiers:
> -I'm not asking if this is the best way to get high-load scanning done.
> I'm just asking if I'll get the combined power from the cpu cores of all
> the host machines. The scanning jobs thread already.
> -I know it would probably be more efficient to get a powerful multi core
> workstation or server to do this. That is not my question.
> -The pc's are perfectly good, they are just not being used and won't be
> used for anything else.
>
> Thanks in advance.
> ___
> Users mailing list -- users@ovirt.org
> To unsubscribe send an email to users-le...@ovirt.org
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> To view the terms under which this email is distributed, please go to:-
> http://leedsbeckett.ac.uk/disclaimer/email/
>
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[ovirt-users] Re: cluster 4 pc's for more scanning power?

2018-12-01 Thread Yedidyah Bar David
On Sat, Dec 1, 2018 at 8:18 AM Tony Brian Albers  wrote:
>
> On Sat, 2018-12-01 at 00:15 +, Peter C. wrote:
> > Hello and sorry for the ignorance behind this question. I've been
> > reading about various scale out, "hyper convergence" solutions and
> > want to ask this about oVirt.
> >
> > I do vulnerability scanning on my company's assets. I do it from an
> > obsolete laptop that was given to me. The load goes over 13
> > sometimes, and the scans take a long time.
> >
> > If I built an oVirt cluster from 4 or 5 desktop pc's, build  VM to
> > run OpenVAS, would the cpu load demanded by the scanning be spread
> > accross the 3-4 hosts, not inlcuding the management host, and therby
> > give my scans more CPU power?

As Tony replied below, no.

> >
> > If not oVirt, is there another project that would be better suited to
> > what I'm trying to achieve?

Depending on definition. If "what you are trying to achieve" is to
run a multi-threaded application on multiple independent physical machines,
then the the most famous answer ~20 years ago was "mosix". Feel free to
spend some time playing with it. When I tried it, it did work as advertised,
but as was quickly understood by many that were fascinated by it when first
announced (at least, when the linux version was first announced), it's
almost always the worst solution in terms of performance. It's still
being developed, probably getting better over the years, but you are much
better off splitting your work to multiple processes that are explicitly
managed on separate machines. One way to do that, for your specific case,
is what Tony suggested - split your network address range between the
machines and let each scan a chunk of the range.

Best regards,

> >
> > Qualifiers:
> > -I'm not asking if this is the best way to get high-load scanning
> > done. I'm just asking if I'll get the combined power from the cpu
> > cores of all the host machines. The scanning jobs thread already.
> > -I know it would probably be more efficient to get a powerful multi
> > core workstation or server to do this. That is not my question.
> > -The pc's are perfectly good, they are just not being used and won't
> > be used for anything else.
> >
> > Thanks in advance.
> > ___
> > Users mailing list -- users@ovirt.org
> > To unsubscribe send an email to users-le...@ovirt.org
> > Privacy Statement: https://www.ovirt.org/site/privacy-policy/
> > oVirt Code of Conduct: https://www.ovirt.org/community/about/communit
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> > message/S5WBOBNB6IRXWKIDITYIGGR6NUYMYSFM/
>
> Good morning,
>
> No, I'm afraid that won't work. oVirt does not pool the resources in
> a way that makes it possible to distribute a workload over severel hosts.
>
> IMO there are two options for you:
>
> 1. Set up the machines identicall but let them work on each their own part
> of your network, separated by subnets or something similiar.
>
> 2. Look into something like python-openvas that might make it possible for you
> to automate the distribution of the workload to several hosts.
>
> HTH
>
> /tony
>
>
>
> --
> --
> Tony Albers
> Systems Architect
> Systems Director, National Cultural Heritage Cluster
> Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark.
> Tel: +45 2566 2383 / +45 8946 2316
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-- 
Didi
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[ovirt-users] Re: cluster 4 pc's for more scanning power?

2018-11-30 Thread Tony Brian Albers
On Sat, 2018-12-01 at 00:15 +, Peter C. wrote:
> Hello and sorry for the ignorance behind this question. I've been
> reading about various scale out, "hyper convergence" solutions and
> want to ask this about oVirt.
> 
> I do vulnerability scanning on my company's assets. I do it from an
> obsolete laptop that was given to me. The load goes over 13
> sometimes, and the scans take a long time.
> 
> If I built an oVirt cluster from 4 or 5 desktop pc's, build  VM to
> run OpenVAS, would the cpu load demanded by the scanning be spread
> accross the 3-4 hosts, not inlcuding the management host, and therby
> give my scans more CPU power?
> 
> If not oVirt, is there another project that would be better suited to
> what I'm trying to achieve?
> 
> Qualifiers:
> -I'm not asking if this is the best way to get high-load scanning
> done. I'm just asking if I'll get the combined power from the cpu
> cores of all the host machines. The scanning jobs thread already.
> -I know it would probably be more efficient to get a powerful multi
> core workstation or server to do this. That is not my question.
> -The pc's are perfectly good, they are just not being used and won't
> be used for anything else.
> 
> Thanks in advance.
> ___
> Users mailing list -- users@ovirt.org
> To unsubscribe send an email to users-le...@ovirt.org
> Privacy Statement: https://www.ovirt.org/site/privacy-policy/
> oVirt Code of Conduct: https://www.ovirt.org/community/about/communit
> y-guidelines/
> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/
> message/S5WBOBNB6IRXWKIDITYIGGR6NUYMYSFM/

Good morning,

No, I'm afraid that won't work. oVirt does not pool the resources in 
a way that makes it possible to distribute a workload over severel hosts.

IMO there are two options for you:

1. Set up the machines identicall but let them work on each their own part
of your network, separated by subnets or something similiar.

2. Look into something like python-openvas that might make it possible for you
to automate the distribution of the workload to several hosts.

HTH

/tony



-- 
-- 
Tony Albers
Systems Architect
Systems Director, National Cultural Heritage Cluster
Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark.
Tel: +45 2566 2383 / +45 8946 2316
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