Hi Imesh, 'Pre Terminate" and "Ready to terminate" seems confusing for a user, isn't it so?
On Sat, Oct 18, 2014 at 10:40 AM, Imesh Gunaratne <im...@apache.org> wrote: > Hi Isuru, > > I have done some changes to the Member Lifecycle and also added events: > > > Things changed: > - I have introduced a new state called Inactive. Currently we detect > members as Inactive but it is not reflected in topology, rather we > straightway consider those as Faulty members and terminate them. May be we > can split the member faulty timeout into two parts and first detect them as > Inactive and then after the second timeout consider them as Faulty and > terminate. In this way there is a buffer time for the members to come back > to Active state. WDYT? > > - I have renamed "Activated" to "Active" since we introduced Inactive > state. > > - I have renamed "In Maintenance" to "Pre Terminate" because "In > Maintenance" would not mean that the member is about to be terminated. > > Please add your thoughts. > > Thanks > > > On Fri, Oct 17, 2014 at 5:38 PM, Isuru Haththotuwa <isu...@apache.org> > wrote: > >> Hi all, >> >> I do agree that there might be many changes that we need for this state >> diagram. That will need to be developed as we go on. The idea is to discuss >> the use of validating state changes, for any state diagram that we come >> upon. >> >> On Fri, Oct 17, 2014 at 3:09 PM, Udara Liyanage <ud...@wso2.com> wrote: >> >>> Hi, >>> >>> Could you mention what events/actions causes the state transition from >>> Activate to Terminate? >>> >>> My next question is what happens when member diapered when it is in >>> In-Maintaince mode? Does this state transition is applicable to obsolete >>> members also. >>> >>> On Fri, Oct 17, 2014 at 2:55 PM, Chamila De Alwis <chami...@wso2.com> >>> wrote: >>> >>>> Hi, >>>> >>>> In the container based scenario, aren't the members immediately >>>> terminated without going in to the maintenance mode? >>>> >>>> >>>> Regards, >>>> Chamila de Alwis >>>> Software Engineer | WSO2 | +94772207163 >>>> Blog: code.chamiladealwis.com >>>> >>>> >>>> >>>> On Fri, Oct 17, 2014 at 1:11 PM, Manula Chathurika Thantriwatte < >>>> manu...@wso2.com> wrote: >>>> >>>>> Hi Isuru, >>>>> >>>>> IMO is we need to verify the life cycle in between Activated and >>>>> Terminated modes. We not need to verify the created and started, because >>>>> without started members want come to activated state. >>>>> >>>>> Thanks ! >>>>> >>>>> On Fri, Oct 17, 2014 at 12:46 PM, Isuru Haththotuwa <isu...@apache.org >>>>> > wrote: >>>>> >>>>>> Hi Devs, >>>>>> >>>>>> The purpose of this thread is to discuss $subject. >>>>>> >>>>>> Currently, even though the topology elements (Members, Clusters, etc) >>>>>> go through a life cycle, we do not validate the transitions. For an >>>>>> example, a Member can have the following life cycle: >>>>>> >>>>>> [image: Inline image 1] >>>>>> >>>>>> IMHO its important to keep track of the transitions and see if the >>>>>> change of state is valid as well. >>>>>> Ex. A member can't go from Created state to Activated state without >>>>>> passing through the Started state. If there is such a thing, it might >>>>>> mean >>>>>> that the member is in an inconsistent state. Therefore, we need to >>>>>> validate >>>>>> this transitions. >>>>>> >>>>>> Thoughts? >>>>>> >>>>>> >>>>>> -- >>>>>> Thanks and Regards, >>>>>> >>>>>> Isuru H. >>>>>> +94 716 358 048* <http://wso2.com/>* >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Regards, >>>>> Manula Chathurika Thantriwatte >>>>> Software Engineer >>>>> WSO2 Inc. : http://wso2.com >>>>> lean . enterprise . middleware >>>>> >>>>> email : manu...@wso2.com / man...@apache.org >>>>> phone : +94 772492511 >>>>> blog : http://manulachathurika.blogspot.com/ >>>>> >>>>> >>>>> >>>>> >>>> >>> >>> >>> -- >>> >>> Udara Liyanage >>> Software Engineer >>> WSO2, Inc.: http://wso2.com >>> lean. enterprise. middleware >>> >>> web: http://udaraliyanage.wordpress.com >>> phone: +94 71 443 6897 >>> >>> -- >>> Thanks and Regards, >>> >>> Isuru H. >>> +94 716 358 048* <http://wso2.com/>* >>> >>> >>> * <http://wso2.com/>* >>> >>> >>> > > > -- > Imesh Gunaratne > > Technical Lead, WSO2 > Committer & PMC Member, Apache Stratos > -- Udara Liyanage Software Engineer WSO2, Inc.: http://wso2.com lean. enterprise. middleware web: http://udaraliyanage.wordpress.com phone: +94 71 443 6897
