Hi Nirmal, Thank you for the information. But if you look at the code, you will notice that application ports are not being checked periodically by the agent. Agent will check whether ports are open only once at the instance startup. I believe this should be fixed?
Thanks. On Thu, May 22, 2014 at 3:48 PM, Mariangela Hills <mariang...@wso2.com>wrote: > I added a information on fault handing in Stratos [1]. Please let me know > whether we can add more information to this topic. > > [1] > https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Fault+Handling+Process > > Regards, > Mariangela > > > > > *--* > Mariangela Hills > Senior Technical Writer > > *WSO2, Inc.*lean.enterprise.middleware. > m: +94 773 500185 > w: http://wso2.com > <http://wso2.com/events/> > > > On Thu, May 22, 2014 at 2:14 PM, Mariangela Hills <mariang...@wso2.com>wrote: > >> I can not access Confluence (wiki) at the moment as it is down [1]. I >> will add the required content when the Stratos wiki space comes back online. >> >> [1] http://monitoring.apache.org/status/ >> >> Regards, >> Mariangela >> >> >> >> >> *--* >> Mariangela Hills >> Senior Technical Writer >> >> *WSO2, Inc.*lean.enterprise.middleware. >> m: +94 773 500185 >> w: http://wso2.com >> <http://wso2.com/events/> >> >> >> On Wed, May 21, 2014 at 2:02 PM, Lahiru Sandaruwan <lahi...@wso2.com>wrote: >> >>> Looks like an information needs in docs, if we do not have already. >>> >>> We can have all the fault handling scenarios documented. >>> >>> >>> On Wed, May 21, 2014 at 1:44 PM, Nirmal Fernando < >>> nirmal070...@gmail.com> wrote: >>> >>>> Yes, we already have such a mechanism, using CEP window processors. >>>> >>>> >>>> On Wed, May 21, 2014 at 1:23 PM, Akila Ravihansa Perera < >>>> raviha...@wso2.com> wrote: >>>> >>>>> Hi, >>>>> >>>>> Currently, Stratos cartridge agent only publishes health stats related >>>>> to that instance's system condition. IMO, there should be a way to >>>>> identify whether the deployed application in cartridge instance is >>>>> functioning properly. And it should ideally check this periodically >>>>> (like a cron task). >>>>> >>>>> How about we introduce a new cartridge-agent extension to monitor >>>>> application status? We run a shell script (can be customized by user) >>>>> at a "monitor application" extension point periodically and depending >>>>> on the exit code of the shell script agent will identify whether the >>>>> deployed application is functioning properly. >>>>> >>>>> If the application is not functioning as expected, agent will publish >>>>> a "Maintenance Mode" event. It will prevent LB members from forwarding >>>>> requests to the instance. Ideally, this instance should get re-spawned >>>>> by AS. >>>>> >>>>> This is merely a suggestion. Please add your comments. >>>>> >>>>> Thanks >>>>> >>>>> PS - I'm not aware of any mechanism already in place to check >>>>> application condition. Please ignore this if such mechanism is already >>>>> there. >>>>> >>>>> -- >>>>> Akila Ravihansa Perera >>>>> Software Engineer >>>>> WSO2 Inc. >>>>> http://wso2.com >>>>> >>>>> Phone: +94 77 64 154 38 >>>>> Blog: http://ravihansa3000.blogspot.com >>>>> >>>> >>>> >>>> >>>> -- >>>> Best Regards, >>>> Nirmal >>>> >>>> Nirmal Fernando. >>>> PPMC Member & Committer of Apache Stratos, >>>> Senior Software Engineer, WSO2 Inc. >>>> >>>> Blog: http://nirmalfdo.blogspot.com/ >>>> >>> >>> >>> >>> -- >>> -- >>> Lahiru Sandaruwan >>> Committer and PPMC member, Apache Stratos(incubating), >>> Senior Software Engineer, >>> WSO2 Inc., http://wso2.com >>> lean.enterprise.middleware >>> >>> email: lahi...@wso2.com cell: (+94) 773 325 954 >>> blog: http://lahiruwrites.blogspot.com/ >>> twitter: http://twitter.com/lahirus >>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >>> >>> >> > -- Akila Ravihansa Perera Software Engineer WSO2 Inc. http://wso2.com Phone: +94 77 64 154 38 Blog: http://ravihansa3000.blogspot.com
