Automatic live migration

Automatic live migration

[Gautam]

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i am trying to add auto migration feature in XEN.
so is anyone has worked related to migration part.
i need help regarding files related to migration.
-- 
Regards
Gautam

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Re: Automatic live migration

[Pasi Kärkkäinen]

On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
>    i am trying to add auto migration feature in XEN.
>    so is anyone has worked related to migration part.
>    i need help regarding files related to migration.
>

Hello,

First of all, what do you exactly mean with "automatic live migration" ?

-- Pasi

Re: Automatic live migration

[Gautam]

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Automatic live migration means XEN should monitor the workload of the
machine and user will define the threshold of
any parameter say(CPU usage) then if workload cross the threshold  value
then XEN should migrate a virtual machine
to the other machine automatically without any user interruption.

let me know if you need any further info.


On Sat, Jan 15, 2011 at 4:54 PM, Pasi Kärkkäinen <pasik@iki.fi> wrote:

> On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
> >    i am trying to add auto migration feature in XEN.
> >    so is anyone has worked related to migration part.
> >    i need help regarding files related to migration.
> >
>
> Hello,
>
> First of all, what do you exactly mean with "automatic live migration" ?
>
> -- Pasi
>
>


-- 
Regards
Gautam

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Re: Automatic live migration

[Pasi Kärkkäinen]

On Sat, Jan 15, 2011 at 04:59:28PM +0530, Gautam wrote:
>    Automatic live migration means XEN should monitor the workload of the
>    machine and user will define the threshold of
>    any parameter say(CPU usage) then if workload cross the threshold  value
>    then XEN should migrate a virtual machine
>    to the other machine automatically without any user interruption.
> 
>    let me know if you need any further info.
> 

This kind of functionality does not belong to Xen *hypervisor*,
it should be done from the management toolstack.

If we're talking about traditional xen.org hypervisor then the first implementation 
could be a script that monitors the resource usage on all physical hosts, 
and executes live migration commands based on the resource usage to balance the workloads.

I'm not sure if there's something like this already available for Xen ..
Remember Xen 4.0 and older versions use the xm/xend toolstack,
and the upcoming Xen 4.1 will use the xl/libxl toolstack as the primary toolstack.

Both xm/xend and xl/libxl toolstack are more focused on single host management,
while the XAPI toolstack in XenServer and XCP (Xen Cloud Platform) has
multi-host pools.

Which one are you targeting? xen.org hypervisor or XAPI/XCP ?

XAPI toolstack in XenServer/XCP has the concept of "Workload Balancing" (WLB),
which is meant for exactly what you described.

Citrix XenServer includes WLB service, but XCP doesn't, afaik.

See: 
- "XenServer Workload Balancing Administration Tool": http://support.citrix.com/article/CTX125365
- "Configuring XenServer Workload Balancing Settings Using XE Commands": http://support.citrix.com/article/CTX125186

There are some thirdparty WLB services available for XCP,
see for example http://www.xencloudcontrol.com/ and http://www.xencloudcontrol.com/DOCS/load-balancer.txt

Are you thinking of writing your own WLB service?
Hopefully that helps.

-- Pasi


>    On Sat, Jan 15, 2011 at 4:54 PM, Pasi Kärkkäinen <[1]pasik@iki.fi> wrote:
> 
>      On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
>      >    i am trying to add auto migration feature in XEN.
>      >    so is anyone has worked related to migration part.
>      >    i need help regarding files related to migration.
>      >
> 
>      Hello,
> 
>      First of all, what do you exactly mean with "automatic live migration" ?
>      -- Pasi
> 
>    --
>    Regards
>    Gautam
> 
> 
> 
> References
> 
>    Visible links
>    1. mailto:pasik@iki.fi

Re: Automatic live migration

[Pasi Kärkkäinen]

On Sat, Jan 15, 2011 at 05:39:54PM +0530, Gautam wrote:
>    Hi Pasi,
>    i am targeting xen hypervisor.
>

Ok.


>    i have already written one script which manage the work load.
>    my script uses xentop command.
>

Feel free to post your script to xen-devel for comments.

>    but i wanted to add this features in xen code rather than running an
>    outside script.
> 

New features should be developed against xen-unstable, ie. Xen 4.1 at this point.
Xen 4.1 uses the xl/libxl toolstack as the primary toolstack, so you should
make sure your script works with xl/libxl.

Other than that.. post your script as RFC (Request For Comments),
and we'll see how it looks like.

-- Pasi


>    On Sat, Jan 15, 2011 at 5:24 PM, Pasi Kärkkäinen <[1]pasik@iki.fi> wrote:
> 
>      On Sat, Jan 15, 2011 at 04:59:28PM +0530, Gautam wrote:
>      >    Automatic live migration means XEN should monitor the workload of
>      the
>      >    machine and user will define the threshold of
>      >    any parameter say(CPU usage) then if workload cross the threshold
>       value
>      >    then XEN should migrate a virtual machine
>      >    to the other machine automatically without any user interruption.
>      >
>      >    let me know if you need any further info.
>      >
> 
>      This kind of functionality does not belong to Xen *hypervisor*,
>      it should be done from the management toolstack.
> 
>      If we're talking about traditional [2]xen.org hypervisor then the first
>      implementation
>      could be a script that monitors the resource usage on all physical
>      hosts,
>      and executes live migration commands based on the resource usage to
>      balance the workloads.
> 
>      I'm not sure if there's something like this already available for Xen ..
>      Remember Xen 4.0 and older versions use the xm/xend toolstack,
>      and the upcoming Xen 4.1 will use the xl/libxl toolstack as the primary
>      toolstack.
> 
>      Both xm/xend and xl/libxl toolstack are more focused on single host
>      management,
>      while the XAPI toolstack in XenServer and XCP (Xen Cloud Platform) has
>      multi-host pools.
> 
>      Which one are you targeting? [3]xen.org hypervisor or XAPI/XCP ?
> 
>      XAPI toolstack in XenServer/XCP has the concept of "Workload Balancing"
>      (WLB),
>      which is meant for exactly what you described.
> 
>      Citrix XenServer includes WLB service, but XCP doesn't, afaik.
> 
>      See:
>      - "XenServer Workload Balancing Administration Tool":
>      [4]http://support.citrix.com/article/CTX125365
>      - "Configuring XenServer Workload Balancing Settings Using XE Commands":
>      [5]http://support.citrix.com/article/CTX125186
> 
>      There are some thirdparty WLB services available for XCP,
>      see for example [6]http://www.xencloudcontrol.com/ and
>      [7]http://www.xencloudcontrol.com/DOCS/load-balancer.txt
> 
>      Are you thinking of writing your own WLB service?
>      Hopefully that helps.
> 
>      -- Pasi
> 
>      >    On Sat, Jan 15, 2011 at 4:54 PM, Pasi Kärkkäinen
>      <[1][8]pasik@iki.fi> wrote:
>      >
>      >      On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
>      >      >    i am trying to add auto migration feature in XEN.
>      >      >    so is anyone has worked related to migration part.
>      >      >    i need help regarding files related to migration.
>      >      >
>      >
>      >      Hello,
>      >
>      >      First of all, what do you exactly mean with "automatic live
>      migration" ?
>      >      -- Pasi
>      >
>      >    --
>      >    Regards
>      >    Gautam
>      >
>      >
>      >
>      > References
>      >
>      >    Visible links
>      >    1. mailto:[9]pasik@iki.fi
> 
>    --
>    Regards
>    Gautam
> 
> 
> 
> References
> 
>    Visible links
>    1. mailto:pasik@iki.fi
>    2. http://xen.org/
>    3. http://xen.org/
>    4. http://support.citrix.com/article/CTX125365
>    5. http://support.citrix.com/article/CTX125186
>    6. http://www.xencloudcontrol.com/
>    7. http://www.xencloudcontrol.com/DOCS/load-balancer.txt
>    8. mailto:pasik@iki.fi
>    9. mailto:pasik@iki.fi

Re: Automatic live migration

[Gautam]

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Thanks pasi,
i am planing to inject that script code in xen code.
what you say about this??

On Sat, Jan 15, 2011 at 5:45 PM, Pasi Kärkkäinen <pasik@iki.fi> wrote:

> On Sat, Jan 15, 2011 at 05:39:54PM +0530, Gautam wrote:
> >    Hi Pasi,
> >    i am targeting xen hypervisor.
> >
>
> Ok.
>
>
> >    i have already written one script which manage the work load.
> >    my script uses xentop command.
> >
>
> Feel free to post your script to xen-devel for comments.
>
> >    but i wanted to add this features in xen code rather than running an
> >    outside script.
> >
>
> New features should be developed against xen-unstable, ie. Xen 4.1 at this
> point.
> Xen 4.1 uses the xl/libxl toolstack as the primary toolstack, so you should
> make sure your script works with xl/libxl.
>
> Other than that.. post your script as RFC (Request For Comments),
> and we'll see how it looks like.
>
> -- Pasi
>
>
> >    On Sat, Jan 15, 2011 at 5:24 PM, Pasi Kärkkäinen <[1]pasik@iki.fi>
> wrote:
> >
> >      On Sat, Jan 15, 2011 at 04:59:28PM +0530, Gautam wrote:
> >      >    Automatic live migration means XEN should monitor the workload
> of
> >      the
> >      >    machine and user will define the threshold of
> >      >    any parameter say(CPU usage) then if workload cross the
> threshold
> >       value
> >      >    then XEN should migrate a virtual machine
> >      >    to the other machine automatically without any user
> interruption.
> >      >
> >      >    let me know if you need any further info.
> >      >
> >
> >      This kind of functionality does not belong to Xen *hypervisor*,
> >      it should be done from the management toolstack.
> >
> >      If we're talking about traditional [2]xen.org hypervisor then the
> first
> >      implementation
> >      could be a script that monitors the resource usage on all physical
> >      hosts,
> >      and executes live migration commands based on the resource usage to
> >      balance the workloads.
> >
> >      I'm not sure if there's something like this already available for
> Xen ..
> >      Remember Xen 4.0 and older versions use the xm/xend toolstack,
> >      and the upcoming Xen 4.1 will use the xl/libxl toolstack as the
> primary
> >      toolstack.
> >
> >      Both xm/xend and xl/libxl toolstack are more focused on single host
> >      management,
> >      while the XAPI toolstack in XenServer and XCP (Xen Cloud Platform)
> has
> >      multi-host pools.
> >
> >      Which one are you targeting? [3]xen.org hypervisor or XAPI/XCP ?
> >
> >      XAPI toolstack in XenServer/XCP has the concept of "Workload
> Balancing"
> >      (WLB),
> >      which is meant for exactly what you described.
> >
> >      Citrix XenServer includes WLB service, but XCP doesn't, afaik.
> >
> >      See:
> >      - "XenServer Workload Balancing Administration Tool":
> >      [4]http://support.citrix.com/article/CTX125365
> >      - "Configuring XenServer Workload Balancing Settings Using XE
> Commands":
> >      [5]http://support.citrix.com/article/CTX125186
> >
> >      There are some thirdparty WLB services available for XCP,
> >      see for example [6]http://www.xencloudcontrol.com/ and
> >      [7]http://www.xencloudcontrol.com/DOCS/load-balancer.txt
> >
> >      Are you thinking of writing your own WLB service?
> >      Hopefully that helps.
> >
> >      -- Pasi
> >
> >      >    On Sat, Jan 15, 2011 at 4:54 PM, Pasi Kärkkäinen
> >      <[1][8]pasik@iki.fi> wrote:
> >      >
> >      >      On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
> >      >      >    i am trying to add auto migration feature in XEN.
> >      >      >    so is anyone has worked related to migration part.
> >      >      >    i need help regarding files related to migration.
> >      >      >
> >      >
> >      >      Hello,
> >      >
> >      >      First of all, what do you exactly mean with "automatic live
> >      migration" ?
> >      >      -- Pasi
> >      >
> >      >    --
> >      >    Regards
> >      >    Gautam
> >      >
> >      >
> >      >
> >      > References
> >      >
> >      >    Visible links
> >      >    1. mailto:[9]pasik@iki.fi
> >
> >    --
> >    Regards
> >    Gautam
> >
> >
> >
> > References
> >
> >    Visible links
> >    1. mailto:pasik@iki.fi
> >    2. http://xen.org/
> >    3. http://xen.org/
> >    4. http://support.citrix.com/article/CTX125365
> >    5. http://support.citrix.com/article/CTX125186
> >    6. http://www.xencloudcontrol.com/
> >    7. http://www.xencloudcontrol.com/DOCS/load-balancer.txt
> >    8. mailto:pasik@iki.fi
> >    9. mailto:pasik@iki.fi
>



-- 
Regards
Gautam

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http://lists.xensource.com/xen-devel

Re: Automatic live migration

[Jean Baptiste Favre]

Hello,
You may have a look on Entropy project here:
http://entropy.gforge.inria.fr/

I think this could achieve what you want to do.
Regards,
JB


Le 15/01/2011 13:19, Gautam a écrit :
> Thanks pasi,
> i am planing to inject that script code in xen code.
> what you say about this??
> 
> On Sat, Jan 15, 2011 at 5:45 PM, Pasi Kärkkäinen <pasik@iki.fi
> <mailto:pasik@iki.fi>> wrote:
> 
>     On Sat, Jan 15, 2011 at 05:39:54PM +0530, Gautam wrote:
>     >    Hi Pasi,
>     >    i am targeting xen hypervisor.
>     >
> 
>     Ok.
> 
> 
>     >    i have already written one script which manage the work load.
>     >    my script uses xentop command.
>     >
> 
>     Feel free to post your script to xen-devel for comments.
> 
>     >    but i wanted to add this features in xen code rather than
>     running an
>     >    outside script.
>     >
> 
>     New features should be developed against xen-unstable, ie. Xen 4.1
>     at this point.
>     Xen 4.1 uses the xl/libxl toolstack as the primary toolstack, so you
>     should
>     make sure your script works with xl/libxl.
> 
>     Other than that.. post your script as RFC (Request For Comments),
>     and we'll see how it looks like.
> 
>     -- Pasi
> 
> 
>     >    On Sat, Jan 15, 2011 at 5:24 PM, Pasi Kärkkäinen
>     <[1]pasik@iki.fi <mailto:pasik@iki.fi>> wrote:
>     >
>     >      On Sat, Jan 15, 2011 at 04:59:28PM +0530, Gautam wrote:
>     >      >    Automatic live migration means XEN should monitor the
>     workload of
>     >      the
>     >      >    machine and user will define the threshold of
>     >      >    any parameter say(CPU usage) then if workload cross the
>     threshold
>     >       value
>     >      >    then XEN should migrate a virtual machine
>     >      >    to the other machine automatically without any user
>     interruption.
>     >      >
>     >      >    let me know if you need any further info.
>     >      >
>     >
>     >      This kind of functionality does not belong to Xen *hypervisor*,
>     >      it should be done from the management toolstack.
>     >
>     >      If we're talking about traditional [2]xen.org
>     <http://xen.org> hypervisor then the first
>     >      implementation
>     >      could be a script that monitors the resource usage on all
>     physical
>     >      hosts,
>     >      and executes live migration commands based on the resource
>     usage to
>     >      balance the workloads.
>     >
>     >      I'm not sure if there's something like this already available
>     for Xen ..
>     >      Remember Xen 4.0 and older versions use the xm/xend toolstack,
>     >      and the upcoming Xen 4.1 will use the xl/libxl toolstack as
>     the primary
>     >      toolstack.
>     >
>     >      Both xm/xend and xl/libxl toolstack are more focused on
>     single host
>     >      management,
>     >      while the XAPI toolstack in XenServer and XCP (Xen Cloud
>     Platform) has
>     >      multi-host pools.
>     >
>     >      Which one are you targeting? [3]xen.org <http://xen.org>
>     hypervisor or XAPI/XCP ?
>     >
>     >      XAPI toolstack in XenServer/XCP has the concept of "Workload
>     Balancing"
>     >      (WLB),
>     >      which is meant for exactly what you described.
>     >
>     >      Citrix XenServer includes WLB service, but XCP doesn't, afaik.
>     >
>     >      See:
>     >      - "XenServer Workload Balancing Administration Tool":
>     >      [4]http://support.citrix.com/article/CTX125365
>     >      - "Configuring XenServer Workload Balancing Settings Using XE
>     Commands":
>     >      [5]http://support.citrix.com/article/CTX125186
>     >
>     >      There are some thirdparty WLB services available for XCP,
>     >      see for example [6]http://www.xencloudcontrol.com/ and
>     >      [7]http://www.xencloudcontrol.com/DOCS/load-balancer.txt
>     >
>     >      Are you thinking of writing your own WLB service?
>     >      Hopefully that helps.
>     >
>     >      -- Pasi
>     >
>     >      >    On Sat, Jan 15, 2011 at 4:54 PM, Pasi Kärkkäinen
>     >      <[1][8]pasik@iki.fi <mailto:pasik@iki.fi>> wrote:
>     >      >
>     >      >      On Sat, Jan 15, 2011 at 02:02:40PM +0530, Gautam wrote:
>     >      >      >    i am trying to add auto migration feature in XEN.
>     >      >      >    so is anyone has worked related to migration part.
>     >      >      >    i need help regarding files related to migration.
>     >      >      >
>     >      >
>     >      >      Hello,
>     >      >
>     >      >      First of all, what do you exactly mean with "automatic
>     live
>     >      migration" ?
>     >      >      -- Pasi
>     >      >
>     >      >    --
>     >      >    Regards
>     >      >    Gautam
>     >      >
>     >      >
>     >      >
>     >      > References
>     >      >
>     >      >    Visible links
>     >      >    1. mailto:[9]pasik@iki.fi <mailto:pasik@iki.fi>
>     >
>     >    --
>     >    Regards
>     >    Gautam
>     >
>     >
>     >
>     > References
>     >
>     >    Visible links
>     >    1. mailto:pasik@iki.fi <mailto:pasik@iki.fi>
>     >    2. http://xen.org/
>     >    3. http://xen.org/
>     >    4. http://support.citrix.com/article/CTX125365
>     >    5. http://support.citrix.com/article/CTX125186
>     >    6. http://www.xencloudcontrol.com/
>     >    7. http://www.xencloudcontrol.com/DOCS/load-balancer.txt
>     >    8. mailto:pasik@iki.fi <mailto:pasik@iki.fi>
>     >    9. mailto:pasik@iki.fi <mailto:pasik@iki.fi>
> 
> 
> 
> 
> -- 
> Regards
> Gautam
> 
>   
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel