RE: [DISCUSS] Persistent Networks without a running VM

[Likitha Shetty <li...@citrix.com>]

Hi Sailaja,

Please find my answers inline

Thank you,
Likitha

>-----Original Message-----
>From: Sailaja Mada
>Sent: Tuesday, January 29, 2013 4:54 PM
>To: Likitha Shetty; cloudstack-dev@incubator.apache.org
>Subject: RE: [DISCUSS] Persistent Networks without a running VM
>
>Hi Likitha,
>
>Few more questions :
>
>1. What is the behavior with gc "vpc.cleanup.interval"  set when VPC has
>persistent guest networks with no VM's added to the tier?
[Likitha] If the VPC has any tier that is a persistent network, the VPC will not be cleaned up during gc.
>2.  When the domain is deleted forcibly , it deletes all the accounts/Guest
>networks/VPC's/VM's/Routers belonging to the domain. I would assume there is
>no change in behavior even with persistent networks - Please confirm.
[Likitha] You are right, there is no change in behavior
>Thanks,
>Sailaja.M
>
>-----Original Message-----
>From: Likitha Shetty
>Sent: Wednesday, January 16, 2013 11:56 AM
>To: Sailaja Mada; cloudstack-dev@incubator.apache.org
>Subject: RE: [DISCUSS] Persistent Networks without a running VM
>
>Please find my answers inline.
>
>Thank you,
>Likitha
>>-----Original Message-----
>>From: Sailaja Mada
>>Sent: Wednesday, January 16, 2013 8:49 AM
>>To: cloudstack-dev@incubator.apache.org; Likitha Shetty
>>Subject: RE: [DISCUSS] Persistent Networks without a running VM
>>
>>Hi Likitha,
>>
>>Can you please clarify below questions :
>>
>>a.  Does the ListNetworks API response gives the details of Persistent Network?
>[Likitha] Yes the response should say if the network is persistent or not.
>>b.  When the account is deleted , Do we allow deletion of persistent
>>networks created by this account ?
>[Likitha] Yes, both persistent and non-persistent networks will be cleaned up.
>>c.   Is there any change with persistent networks when Restart Network is
>>triggered  with cleanup=true ?
>[Likitha] No
>>d.  Do we have support for network update from non-persistent to
>>persistent network using network offering upgrade or vice-versa?
>[Likitha] Yes, we will support both.
>To expand on that, when a network offering of a network is updated from non-
>persistent to persistent if the network has no running VM's then the network will
>be implemented. Also during the next run of GC the network will not be
>shutdown.
>And when a network offering of a network is updated from persistent to non-
>persistent if the network has no running VM's, during the next GC run the
>network will be shutdown.
>>f.  Do we trigger the configuration @Netscaler  while creating the
>>persistent network itself ?
>[Likitha] Yes, if the network being created is from a persistent network offering,
>during the network creation all the relevant network elements (including
>Netscaler if applicable) will be configured.
>>g.  How are we going to exclude persistent network not to shutdown with
>>the GC interval configured?
>[Likitha] While the Network GC thread is checking for all the networks that have
>been marked for GC, the thread will also check if the network offering
>associated with the network is persistent. If it is then Network GC will not call for
>the network shutdown.
>>h.  Do we support delete networks ?
>[Likitha] Yes. Same behavior as non-persistent networks.
>>i. Any plans to new Alerts/Events ?
>[Likitha] No new Alerts or Events will be generated.
>>
>>Thanks,
>>Sailaja.M
>>
>>-----Original Message-----
>>From: Likitha Shetty [mailto:likitha.shetty@citrix.com]
>>Sent: Monday, January 07, 2013 5:08 PM
>>To: cloudstack-dev@incubator.apache.org
>>Subject: RE: [DISCUSS] Persistent Networks without a running VM
>>
>>Created the first draft of the Functional spec -
>>https://cwiki.apache.org/confluence/display/CLOUDSTACK/FS+-
>>+Persistent+Networks.
>>Will keep updating it based on the feedback.
>>
>>Thank you,
>>Likitha
>>
>>> -----Original Message-----
>>> From: Manan Shah [mailto:manan.shah@citrix.com]
>>> Sent: Friday, January 04, 2013 10:26 PM
>>> To: cloudstack-dev@incubator.apache.org
>>> Subject: Re: [DISCUSS] Persistent Networks without a running VM
>>>
>>> Chiradeep, Likitha,
>>>
>>> My take is that we need to support both kinds of networks (persistent
>>> as well as non-persistent). Also, I don't think we can have this as a
>>> zone-wide behavior because not all networks in a zone would need to
>>> be
>>persistent.
>>>
>>> For example, if you are deploying a multi-tier application, you might
>>> only want the DB tier to be persistent.
>>>
>>> Regards,
>>> Manan Shah
>>>
>>>
>>>
>>>
>>> On 1/3/13 11:31 PM, "Ram Ganesh" <Ra...@citrix.com> wrote:
>>>
>>> >Does it make sense to introduce the flag(persistent) as part of
>>> >NetworkOffering?
>>> >
>>> >Thanks,
>>> >RamG
>>> >
>>> >> -----Original Message-----
>>> >> From: Likitha Shetty [mailto:likitha.shetty@citrix.com]
>>> >> Sent: 03 January 2013 18:05
>>> >> To: cloudstack-dev@incubator.apache.org
>>> >> Subject: RE: [DISCUSS] Persistent Networks without a running VM
>>> >>
>>> >> Please find my answers and queries inline.
>>> >>
>>> >> Thank you,
>>> >> Likitha
>>> >>
>>> >> > -----Original Message-----
>>> >> > From: Chiradeep Vittal [mailto:Chiradeep.Vittal@citrix.com]
>>> >> > Sent: Thursday, January 03, 2013 1:03 PM
>>> >> > To: CloudStack DeveloperList
>>> >> > Subject: Re: [DISCUSS] Persistent Networks without a running VM
>>> >> >
>>> >> > So:
>>> >> > 1. There needs to be both kinds of networks available
>>> >> > (persistent as
>>> >> well as non-
>>> >> > persistent) in the same zone?
>>> >> Yes
>>> >>
>>> >> > From an end-user perspective this is going to be confusing since
>>> >> > she
>>> >> has not
>>> >> > been exposed to this internal state before (and generally the
>>> >> > end-
>>> >> user is not
>>> >> > aware of the internal state of the infrastructure).
>>> >> +1. Say we have a new API 'ProvisionNetwork' to provision a
>>> >> +network
>>> >> that has been created by the user. Since the user is not aware of
>>> >> the internal state of a network it would be confusing for the user
>>> >> to understand the difference b/w the 2 API's, CreateNetwork and
>>> >> ProvisionNetwork.
>>> >>
>>> >> > Is it OK to make this behavior
>>> >> > zone-wide, I.e., on every guest network?
>>> >> But this would mean having all networks (in the zone which has
>>> >> this behavior enabled) in an implemented state, even if a network
>>> >> has no physical device or VM deployed in it. This is changing the
>>> >> default CS behavior of not having resources allocated to a network
>>> >> if the network doesn't require it. Is that acceptable ?
>>> >>
>>> >> >
>>> >> >
>>> >> > On 12/31/12 10:19 AM, "Manan Shah" <ma...@citrix.com>
>wrote:
>>> >> >
>>> >> > >Thanks Likitha for picking up this requirement. You have
>>> >> > >correctly interpreted the requirements.
>>> >> > >
>>> >> > >Regards,
>>> >> > >Manan Shah
>>> >> > >
>>> >> > >
>>> >> > >
>>> >> > >
>>> >> > >On 12/31/12 2:52 AM, "Likitha Shetty"
>>> >> > ><li...@citrix.com>
>>> >> wrote:
>>> >> > >
>>> >> > >>Hi,
>>> >> > >>
>>> >> > >>I would like to work on the proposed feature.
>>> >> > >>Restating the requirement. Currently in CloudStack when a user
>>> >> creates
>>> >> > >>a network, a db entry for that network is made, a VLAN ID is
>>> >> assigned
>>> >> > >>and the network is created only when the first VM on that
>>> >> > >>network
>>> >> is
>>> >> > created.
>>> >> > >>With this feature CloudStack should allow users to provision
>>> >> > >>the created network i.e. assign a VLAN ID and implement the
>>> >> > >>network without having to deploy VM's on that network.
>>> >> > >>
>>> >> > >>Comments/Suggestions on the requirement ?
>>> >> > >>
>>> >> > >>Thank you,
>>> >> > >>Likitha
>>> >> > >>
>>> >> > >>-----Original Message-----
>>> >> > >>From: Manan Shah [mailto:manan.shah@citrix.com]
>>> >> > >>Sent: Saturday, December 22, 2012 7:01 AM
>>> >> > >>To: cloudstack-dev@incubator.apache.org
>>> >> > >>Subject: [DISCUSS] Persistent Networks without a running VM
>>> >> > >>
>>> >> > >>Hi,
>>> >> > >>
>>> >> > >>I would like to propose a new feature for persistent networks
>>> >> without
>>> >> > >>running VMs. I have created a JIRA ticket and provided the
>>> >> > >>requirements at the following location.  Please provide
>>> >> > >>feedback on
>>> >> the
>>> >> > requirements.
>>> >> > >>
>>> >> > >>JIRA Ticket:
>>> >> > >>https://issues.apache.org/jira/browse/CLOUDSTACK-706
>>> >> > >>Requirements:
>>> >> >
>>> >> >>https://cwiki.apache.org/confluence/display/CLOUDSTACK/Persisten
>>> >> >>t
>>> >> >>+N
>>> >> >>et
>>> >> w
>>> >> > >>ork
>>> >> > >>s
>>> >> > >>
>>> >> > >>Regards,
>>> >> > >>Manan Shah
>>> >> > >>
>>> >> > >
>>> >