On Mon, Aug 11, 2014 at 1:23 AM, Akila Ravihansa Perera <raviha...@wso2.com> wrote:
> Hi Raj, > > As Kasun pointed out, you don't need to map hostname to IP in /etc/hosts > since we are using IP addresses for WKA configuration in PPaaS. This is > done by the Stratos cartridge agent (in start-servers.sh agent extension). > > What happens is cartridge agent will keep listening to topology topic and > get the IP addresses of its cluster members and pass those parameters to > the start-servers extension. This extension script will then write those IP > addresses into the axis2.xml and start the WSO2 product server (for eg - > WSO2 AS). Cartridge agent will only take IP addresses of WKA members by > looking at the "PRIMARY: true" member property in the topology. > > > > On Sun, Aug 10, 2014 at 11:21 PM, Kasun Gajasinghe <kas...@wso2.com> > wrote: > >> >> There is no need for the worker nodes to know about the manager node for >> the purpose that you are talking about. And, the manager nodes do need to >> know from where the worker cluster can be accessed because of the >> management console. Ie. The mgt console need to show WSDL urls of services >> etc. wrt to worker node. But even in that case, manager do not access the >> worker nodes. So, you do not have to add any host-to-ip mapping there >> either. >> >> In a cluster, the nodes communicate with each other via cluster messages. >> All the nodes need to be aware of each other for this to happen. This is >> configured via the underlying clustering configuration in axis2.xml. We >> usually use IPs in that case (for localMemberHost). But if you set host >> names for that, then you need to map the host names to ips. >> > Got it cleared now. Thanks Kasun. > >> KasunG >> >> >> On Sun, Aug 10, 2014 at 12:12 PM, Nirmal Fernando <nir...@wso2.com> >> wrote: >> >>> Hi Raj, >>> >>> AFAIK these are done at one of the extensions of Agent (member activated >>> AFAIR). >>> >>> Manager nodes do need to know about worker cluster, hence you need to >>> map the host name of worker cluster to LB. But worker cluster doesn't need >>> to know about Management node. >>> >>> >>> On Sun, Aug 10, 2014 at 11:53 AM, Rajkumar Rajaratnam < >>> rajkum...@wso2.com> wrote: >>> >>>> >>>> >>>> >>>> On Sun, Aug 10, 2014 at 8:35 AM, Kasun Gajasinghe <kas...@wso2.com> >>>> wrote: >>>> >>>>> >>>>> Shouldn't the domain to IP mapping be located in the client who is >>>>> accessing these servers? So, MgtHostName and HostName do not need to >>>>> configured in worker/manager nodes, right? >>>>> >>>> >>>> I am pretty sure that I am missing something here :) If we map at >>>> client side, client knows about hosts and can access directly using host >>>> names. If we don't map in worker node, how a worker node knows about >>>> manager node? >>>> >>>> If we use manager node's IP instead of its host name in worker node's >>>> configuration files, then we don't have to map it in worker node. But what >>>> if we are using manager node's host name (mgt.esb.wso2.com) in worker >>>> node's configuration files? Then we should map it right? >>>> >>>> Thanks. >>>> >>>> >>>>> >>>>> You will have to set the mapping for MySQL DB though if the DNS >>>>> resolvers are not available in the internal network. >>>>> >>>>> >>>>> On Sun, Aug 10, 2014 at 8:14 AM, Rajkumar Rajaratnam < >>>>> rajkum...@wso2.com> wrote: >>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Sun, Aug 10, 2014 at 8:08 AM, Udara Liyanage <ud...@wso2.com> >>>>>> wrote: >>>>>> >>>>>>> Hi Raj, >>>>>>> >>>>>>> What I meant is you have to add those host entries into the your >>>>>>> machine when you access mgt.as.wso2.com. >>>>>>> >>>>>>> Worker nodes should have those host entries I guess. boot.sh won't >>>>>>> be able to add the host entries to the worker nodes since worker nodes >>>>>>> are >>>>>>> dynamically spawned and runs on different machines.Host entries may be >>>>>>> added by cartridge agent or puppet >>>>>>> >>>>>> >>>>>> Yes this is what exactly I am searching for. I am automating hadoop >>>>>> clustering. I wanted to know how we can map IPs of dynamically spawned >>>>>> instances. I couldn't find such mapping in puppet scripts also. >>>>>> >>>>>> Thanks. >>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Sun, Aug 10, 2014 at 7:56 AM, Rajkumar Rajaratnam < >>>>>>> rajkum...@wso2.com> wrote: >>>>>>> >>>>>>>> Hi Udara, >>>>>>>> >>>>>>>> Thanks for the response. >>>>>>>> >>>>>>>> Sorry if my understanding is wrong. >>>>>>>> >>>>>>>> [1] says we have to map following entries in *worker node's* >>>>>>>> /etc/hosts file. Don't we have to that? >>>>>>>> >>>>>>>> <MYSQL-DB-SERVER-IP> carbondb.mysql-wso2.com >>>>>>>> <AS-Manager-IP> mgt.as.wso2.com >>>>>>>> >>>>>>>> 1. >>>>>>>> https://docs.wso2.com/display/CLUSTER420/Configuring+the+Worker+Node >>>>>>>> >>>>>>>> Thanks. >>>>>>>> >>>>>>>> >>>>>>>> On Sun, Aug 10, 2014 at 7:05 AM, Udara Liyanage <ud...@wso2.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> AS workers and managers are in different machines from the machine >>>>>>>>> you run PP components. So boot.sh won't have those snippets. >>>>>>>>> Worker nodes should know only about wka member. >>>>>>>>> >>>>>>>>> When you access mgt.as.wso2.com from your laptop you should >>>>>>>>> manually add them to your laptop's hosts file. >>>>>>>>> Mgt.as.wso2.com LB-public-ip >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> Touched, not typed. Erroneous words are a feature, not a typo. >>>>>>>>> On Aug 9, 2014 11:55 PM, "Rajkumar Rajaratnam" <rajkum...@wso2.com> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Hi, >>>>>>>>>> >>>>>>>>>> When we do worker-manager cluster, we need to map host names to >>>>>>>>>> actual IPs in both worker and manager nodes' /etc/hosts files. >>>>>>>>>> >>>>>>>>>> For example, if we are doing application server worker-manager >>>>>>>>>> clustering, worker nodes' /etc/hosts file should have the following >>>>>>>>>> entries, >>>>>>>>>> >>>>>>>>>> <MYSQL-DB-SERVER-IP> carbondb.mysql-wso2.com >>>>>>>>>> <AS-Manager-IP> mgt.as.wso2.com >>>>>>>>>> >>>>>>>>>> Where are we doing this in P-PaaS start up script (boot.sh) ? >>>>>>>>>> >>>>>>>>>> I couldn't find any snippet doing such host name mapping in >>>>>>>>>> boot.sh. Can someone point it out please? >>>>>>>>>> >>>>>>>>>> Thanks. >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Rajkumar Rajaratnam >>>>>>>>>> Software Engineer | WSO2, Inc. >>>>>>>>>> Mobile +94777568639 | +94783498120 >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Dev mailing list >>>>>>>>>> Dev@wso2.org >>>>>>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>>>>>>> >>>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Rajkumar Rajaratnam >>>>>>>> Software Engineer | WSO2, Inc. >>>>>>>> Mobile +94777568639 | +94783498120 >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> >>>>>>> Udara Liyanage >>>>>>> Software Engineer >>>>>>> WSO2, Inc.: http://wso2.com >>>>>>> lean. enterprise. middleware >>>>>>> >>>>>>> web: http://udaraliyanage.wordpress.com >>>>>>> phone: +94 71 443 6897 >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Rajkumar Rajaratnam >>>>>> Software Engineer | WSO2, Inc. >>>>>> Mobile +94777568639 | +94783498120 >>>>>> >>>>>> _______________________________________________ >>>>>> Dev mailing list >>>>>> Dev@wso2.org >>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> *Kasun Gajasinghe*Senior Software Engineer, WSO2 Inc. >>>>> email: kasung AT spamfree wso2.com >>>>> linked-in: http://lk.linkedin.com/in/gajasinghe >>>>> blog: http://kasunbg.org >>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> Rajkumar Rajaratnam >>>> Software Engineer | WSO2, Inc. >>>> Mobile +94777568639 | +94783498120 >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> Dev@wso2.org >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> >>> Thanks & regards, >>> Nirmal >>> >>> Senior Software Engineer- Platform Technologies Team, WSO2 Inc. >>> Mobile: +94715779733 >>> Blog: http://nirmalfdo.blogspot.com/ >>> >>> >>> >> >> >> -- >> >> *Kasun Gajasinghe*Senior Software Engineer, WSO2 Inc. >> email: kasung AT spamfree wso2.com >> linked-in: http://lk.linkedin.com/in/gajasinghe >> blog: http://kasunbg.org >> >> >> >> _______________________________________________ >> Dev mailing list >> Dev@wso2.org >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > > -- > Akila Ravihansa Perera > Software Engineer > WSO2 Inc. > http://wso2.com > > Phone: +94 77 64 154 38 > Blog: http://ravihansa3000.blogspot.com > > _______________________________________________ > Dev mailing list > Dev@wso2.org > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Rajkumar Rajaratnam Software Engineer | WSO2, Inc. Mobile +94777568639 | +94783498120
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