Re: LoadBalancing & FailOver
Gérard BUNEL <[email protected]> Fri, 07 Apr 2006 14:11:34 +0200
| Newsgroups | gmane.comp.corba.orbacus |
|---|---|
| Message-ID | <[email protected]> |
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Ok Neil, but I need urgent answers to technical questions.
I'm currently architecturing a system which requires High availability=20
features.
So that's why my questions targeted Load Balancing and Fault Tolerance.
The scheme is as:
I've 2 redunded servers (machines). Each one hosting a LoadBalancer.
Each LoadBalancer manages a group a 2 machines hosting the real=20
CORBA server.
So my understanding was:
I can handle redundancy by the use of multiple profiles. The IORs=20
used by the clients should target the 2 LoadBalanced groups with merged=20
IORs.
So that if the main LoadBalancer crashes, the second one could=20
render the service by dispatching requests on its 2 balanced servers. Am=20
I right ?
If ok, how could I be notified of the first LoadBalancer crash ?
In the LoadBalanced group, what happens if one of the loadbalanced=20
server crashes. Is it discarded from the group ? Will it be tried=20
forever ? Can I be notified of its failed status ?
Gerard
Kenealy, Neil a =E9crit :
> Hi Gerard,
>
> Orbacus is very much alive and working. We have many customers using Or=
bacus in mission critical deployments and we are signing support contract=
s on Orbacus for up to 5 years now.
>
> Server failover depends on how much failover you need.
>
> Somebody will get back to later on give you more details.
>
> Neil Kenealy=20
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]=
] On Behalf Of G=E9rard BUNEL
> Sent: 07 April 2006 09:17
> To: [email protected]
> Subject: Re: [OB-Users] LoadBalancing & FailOver
>
> Ooops !!!
>
> I've known this mailing-list much more active some years ago.
> I've posted this mail 2 days ago, and still no answer. But worse, no po=
st on the list ?
> So, is ORBacus still alive ???
> Should I leave this product for another one ?
>
> BTW, I've downloaded the eval (Java-Windows) version to get an idea. Bu=
t nothing about LoadBalancing !!!
> I'm a bit disapointed !!!
>
> G=E9rard BUNEL a =E9crit :
> =20
>> Hello,
>>
>> I'm having a look at OB LoadBalancing features and very interested by=20
>> using it in project we could develop.
>> I should have a configuration where my requests should be load=20
>> balanced between 2 servers.
>> So my question is: Does LoadBalancing takes into account failover.=20
>> What if one of my servers is out of order ?
>>
>> G=E9rard
>> _______________________________________________
>> OB-Users Mailing List - [email protected]=20
>> http://mail.ooc.nf.ca/mailman/listinfo/ob-users
>> Visit our support FAQ before you send a message.
>> http://www.orbacus.com/faq/support.html
>>
>> =20
>
> _______________________________________________
> OB-Users Mailing List - [email protected] http://mail.ooc.nf.ca/mail=
man/listinfo/ob-users
> Visit our support FAQ before you send a message.
> http://www.orbacus.com/faq/support.html
>
> =20
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Ok Neil, but I need urgent answers to technical questions.<br>
<br>
I'm currently architecturing a system which requires High availability
features.<br>
So that's why my questions targeted Load Balancing and Fault Tolerance.<br>
<br>
The scheme is as:<br>
I've 2 redunded servers (machines). Each one hosting a LoadBalancer.<br>
Each LoadBalancer manages a group a 2 machines hosting the real
CORBA server.<br>
<br>
So my understanding was:<br>
I can handle redundancy by the use of multiple profiles. The
IORs used by the clients should target the 2 LoadBalanced groups with
merged IORs.<br>
So that if the main LoadBalancer crashes, the second one could
render the service by dispatching requests on its 2 balanced servers.
Am I right ?<br>
If ok, how could I be notified of the first LoadBalancer crash ?<br>
<br>
In the LoadBalanced group, what happens if one of the loadbalanced
server crashes. Is it discarded from the group ? Will it be tried
forever ? Can I be notified of its failed status ?<br>
<br>
Gerard<br>
<br>
Kenealy, Neil a écrit :
<blockquote
cite="mid83F6E6272111B04D94BA284BC68BC0B75C3D27@emea-ems1.dublin.emea.iona.com"
type="cite">
<pre wrap="">Hi Gerard,
Orbacus is very much alive and working. We have many customers using Orbacus in mission critical deployments and we are signing support contracts on Orbacus for up to 5 years now.
Server failover depends on how much failover you need.
Somebody will get back to later on give you more details.
Neil Kenealy
-----Original Message-----
From: <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a> [<a class="moz-txt-link-freetext" href="mailto:[email protected]">mailto:[email protected]</a>] On Behalf Of Gérard BUNEL
Sent: 07 April 2006 09:17
To: <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a>
Subject: Re: [OB-Users] LoadBalancing & FailOver
Ooops !!!
I've known this mailing-list much more active some years ago.
I've posted this mail 2 days ago, and still no answer. But worse, no post on the list ?
So, is ORBacus still alive ???
Should I leave this product for another one ?
BTW, I've downloaded the eval (Java-Windows) version to get an idea. But nothing about LoadBalancing !!!
I'm a bit disapointed !!!
Gérard BUNEL a écrit :
</pre>
<blockquote type="cite">
<pre wrap="">Hello,
I'm having a look at OB LoadBalancing features and very interested by
using it in project we could develop.
I should have a configuration where my requests should be load
balanced between 2 servers.
So my question is: Does LoadBalancing takes into account failover.
What if one of my servers is out of order ?
Gérard
_______________________________________________
OB-Users Mailing List - <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a>
<a class="moz-txt-link-freetext" href="http://mail.ooc.nf.ca/mailman/listinfo/ob-users">http://mail.ooc.nf.ca/mailman/listinfo/ob-users</a>
Visit our support FAQ before you send a message.
<a class="moz-txt-link-freetext" href="http://www.orbacus.com/faq/support.html">http://www.orbacus.com/faq/support.html</a>
</pre>
</blockquote>
<pre wrap=""><!---->
_______________________________________________
OB-Users Mailing List - <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a> <a class="moz-txt-link-freetext" href="http://mail.ooc.nf.ca/mailman/listinfo/ob-users">http://mail.ooc.nf.ca/mailman/listinfo/ob-users</a>
Visit our support FAQ before you send a message.
<a class="moz-txt-link-freetext" href="http://www.orbacus.com/faq/support.html">http://www.orbacus.com/faq/support.html</a>
</pre>
</blockquote>
<br>
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