As Users enter into Euca system with CLC and Walrus use to transfer
images etc , so unless you have multiple walrus , clc , you will still
have SPOF (Single point of Failure).
(I am not sure if we can have multiple CLC and Walrus) .
Zeeshan
On 11/04/2010 09:06 AM, Björn Böttcher wrote:
Hm so it might be this setup for a single point of entry/failure-free
system configuration.
machine A: CC1/SC1/CLC1/Walrus1
machine B: CC2/SC2/CLC2/Walrus2
machine C: NC1
machine D: NC2
machine E: NC3
But do the multiple machines synchronize automatically?
~Bjoern
2010/11/4 Zeeshan Ali Shah <[email protected] <mailto:[email protected]>>
Hi ,
I think in your case the single point of entry/failure is still
Machine A. even if have multiple CCs , we will still have single
point of failure on ClC/Walrus level .
correct me if i am wrong please
BR
Zeeshan
On 11/04/2010 08:53 AM, Björn Böttcher wrote:
Hi Ziv,
yes thank you. If I install on two machines a CC like in the
example with 5 physical machines:
machine A: CLC/Walrus
machine B: CC1/SC1
machine C: NC1
machine D: CC2/SC2
machine E: NC2
Do the CC1 and CC2 and also the SC have automatically the same
information? Or do I need to configure something like
a Hot-Standby between both machines (in this example B and D) ?
Cheers,
Bjoern
2010/11/4 Ziv Leyes <[email protected] <mailto:[email protected]>>
Hi Björn,
I guess you might be confused due to subtle semantics, it
doesn't say it SHOULD be 1 CC, it says at least, the minimal
requirement (not recommended for production environments) is
to have 2 machines, but the more, the merrier.
Please take a look at the different possible topologies in
the link below:
https://help.ubuntu.com/community/UEC/Topologies
Hope this helps,
Ziv
2010/11/3 Björn Böttcher <[email protected]
<mailto:[email protected]>>
Hi everyone,
According to
https://help.ubuntu.com/community/UE...nstallSeparate
<https://help.ubuntu.com/community/UEC/PackageInstallSeparate>,
there should be only 1 Cloud Controller (CLC) and, as I
read the page, only 1 Walrus Controller. (WS3)
What would happen is 1 of these crash?
Is there a recommended solution for backup an UEC
Configuration?
~Bjoern
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Zeeshan Ali Shah
System Administrator
PDC-Center for High Performance Computing
KTH-Royal Institute of Technology , Sweden
+46 8 790 9115
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Regards
Zeeshan Ali Shah
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PDC-Center for High Performance Computing
KTH-Royal Institute of Technology , Sweden
+46 8 790 9115
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