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From Murali Reddy <Murali.Re...@citrix.com>
Subject Re: NetworkOrchestrator selects 2 NetworkGurus at one time....
Date Thu, 12 Jun 2014 07:53:34 GMT
On 12/06/14 12:13 AM, "Ritu Sabharwal" <rsabharw@Brocade.com> wrote:

>Thanks Chiradeep and Murali for the reply!
>
>I am thinking of explicitly telling ExternalNetworkGuru to skip design
>when Brocade plugin is designing the network. I don't want to disable
>ExternalNetworkGuru from default build when Brocade plugin is not present
>so won't exclude it from the spring class loader.

Small correction, I did not mean to remove it from the build, but remove
bean from loading at run time. Unless any one has objection, explicit
check seems fine for now until design issue is fixed.

>
>Thanks & Regards,
>Ritu S.
>
>-----Original Message-----
>From: Murali Reddy [mailto:Murali.Reddy@citrix.com]
>Sent: Tuesday, June 10, 2014 10:54 PM
>To: Chiradeep Vittal; dev@cloudstack.apache.org
>Cc: Sheng Yang; Jayapal Reddy Uradi; Alena Prokharchyk
>Subject: Re: NetworkOrchestrator selects 2 NetworkGurus at one time....
>
>This is know design issue. Unlike service orchestration (which has
>prescriptive way to tell which network elements to be called for with
>network offerings ) there is no such logic for network design.
>Orchestrator just loops through all the network guru's asking to design
>the network which can results in one or more networks. Hugo did a cleanup
>[1] but I believe it was not merged as there was no consensus. There is
>1-1 mapping between isolation type and Guru but In this case both Brocade
>Guru and ExternalNetworkGuru will attempt to design the VLAN isolated
>networks.
>
>One in-elegent solution is to hard code ExternalGuestNetworu guru to skip
>network deign when Brocade plug-in is supposed to do design the network.
>Other option could be exclude ExternalNetworkGuru bean from spring class
>loader.
>
>[1] https://www.mail-archive.com/dev@cloudstack.apache.org/msg17344.html
>
>From: Chiradeep Vittal
><Chiradeep.Vittal@citrix.com<mailto:Chiradeep.Vittal@citrix.com>>
>Date: Wednesday, 11 June 2014 6:24 AM
>To: "dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>"
><dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>>
>Cc: Sheng Yang <Sheng.Yang@citrix.com<mailto:Sheng.Yang@citrix.com>>,
>Murali Reddy <murali.reddy@citrix.com<mailto:murali.reddy@citrix.com>>,
>Jayapal Reddy Uradi
><jayapalreddy.uradi@citrix.com<mailto:jayapalreddy.uradi@citrix.com>>,
>Alena Prokharchyk 
><Alena.Prokharchyk@citrix.com<mailto:Alena.Prokharchyk@citrix.com>>
>Subject: Re: NetworkOrchestrator selects 2 NetworkGurus at one time....
>
>That is strange. Looks like a bug to me. That is because the
>ExternalGuestNetworkGuru returns 'true' for canHandle.
>
>From: Ritu Sabharwal <rsabharw@Brocade.com<mailto:rsabharw@Brocade.com>>
>Reply-To: "dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>"
><dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>>
>Date: Tuesday, June 10, 2014 at 11:02 AM
>To: "dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>"
><dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org>>
>Subject: NetworkOrchestrator selects 2 NetworkGurus at one time....
>
>Hi,
>
>I am writing a Network Guru for automatically orchestrating Brocade VDX
>switches to provide tenant isolation via VLAN. In my NetworkGuru, I have
>implemented the canHandle() method for Guest isolated network in Advanced
>zone using VLAN isolation. When the NetworkOrchestrator selects the
>NetworkGuru, it selects my NetworkGuru and the ExternalGuestNetworkGuru
>also and I see 2 networks created. How do I make sure that
>ExternalGuestNetworkGuru is not selected by NetworkOrchestrator.
>
>Thanks & Regards,
>Ritu S.
>
>



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