Hi,
On Mon, Mar 17, 2014 at 9:25 AM, Lakmal Warusawithana <lak...@wso2.com>wrote: > Hi Reka, > > Yes, This is a valid point. Here what I like to suggest. First of all, > floating IP assign happen only we have request it in the cartridge > definition. Means if any case floating IP assign failed, we have to > rollback and return subscription false. For that, we need to introduce > subscription error state to the topology. If CC failed to assign floating > IP, CC should mark it with the error state. Autoscaler should look this > state also when spawning the new instances. Also we need to terminate all > error spawn instances as well. With this error state, SM notify user > subscription failed with the reason. > > make sense? > AFAIR associating floating IP is done asynchronously. So we might need a notifying mechanism to tell relevant parties (SM, etc.) that floating IP assigning failed, maybe using the message broker. > > > On Sun, Mar 16, 2014 at 8:44 AM, Reka Thirunavukkarasu <r...@wso2.com>wrote: > >> Hi all, >> >> We need to consider on $subject, since we spawn an instance when it >> failed to create a floating ip. As we throw an exception when it failed to >> allocate a floating ip, CC won't create a new member in the Topology. Since >> the instance creation failed, autoscaler doesn't keep track of this >> instance and it will try to spin another one instead. This will lead to >> resource exhausted state at some point in the IaaS. >> >> How can we avoid this happening? Can we make the CC capable of >> terminating the instance when it failed to allocate an ip or Can we create >> the member with a different state like pending or something to the topology >> and returns the call successful to autoscaler. So that, autoscaler can >> detect this instance as pending and terminate it at some point. >> >> Any thoughts regarding this? >> >> Thanks, >> Reka >> >> -- >> Reka Thirunavukkarasu >> Software Engineer, >> WSO2, Inc.:http://wso2.com, >> Mobile: +94776442007 >> >> >> > > > -- > Lakmal Warusawithana > Software Architect; WSO2 Inc. > Mobile : +94714289692 > Blog : http://lakmalsview.blogspot.com/ > > -- Thanks and Regards, Isuru H. +94 716 358 048* <http://wso2.com/>*
