Thanks again Hans. It works like a charm. I believe we don't have Java support for NTF libraries to implement the life cycle as I don't see the java files in the jar and just ntfsubscribe can be used in a way. But I remember Java examples were mentioned in the service availability principles and practice book. Please let me know if we do.
Thanks Greg On Tue, May 13, 2014 at 10:58 PM, Hans Feldt <[email protected]>wrote: > > > > > *From:* Greg Hurlman [mailto:[email protected]] > *Sent:* den 13 maj 2014 08:05 > *To:* Hans Feldt > *Cc:* [email protected] > > *Subject:* Re: [users] Integration issues > > > > Thanks again Hans for the clarifications those make most sense to me and > what I was looking for. And the last but one, is there any obvious way > using some tool/library to monitor the SUs based on some kind of their > state, running on the payloads? It's OK for me to monitor any of the > readiness/presence/HA state of the SUs. > > *[Hans] OK so now we are talking about something else than CLM. To monitor > AMF SUs you would have to subscribe for NTF state change notifications (the > same way the ntfsubscribe tool does).* > > > > Greg > > > > On Sun, May 11, 2014 at 11:04 PM, Hans Feldt <[email protected]> > wrote: > > > > > > *From:* Greg Hurlman [mailto:[email protected]] > *Sent:* den 10 maj 2014 22:29 > *To:* Hans Feldt > *Subject:* Re: [users] Integration issues > > > > Thanks Hans for letting know that CLM service can be consumed > independently from AMF service. > > > > Now, in a given cluster configuration with two controller nodes and 3 > payload nodes, where PLs are hosted with SUs with sa-aware components where > as controllers are without any SUs and components, > > > > If I create a monitoring process in a controller node which implements the > CLM service, to monitor the payload nodes(leaving/joining/changes), > > > > 1. Is is that the payloads by default obtain the cluster membership as > soon as they are defined in the cluster nodes.cfg and created by > immxml-configure and when I start the opensaf service? > > > > *[Hans] Yes. But it is what is in the CLM information model in IMM that > controls this. You can add/remove CLM nodes dynamically as you > expand/shrink your cluster. What is in nodes.cfg just controls creation of > the very first initial imm.xml needed to boot the cluster.* > > > > 2. If not, do I need to run a monitoring process in every payload node or > need to configure these payload nodes in some way that they join the > cluster and become a member and hence can be monitored. > > > > 3. Given that I intend to run this monitoring process as a external > process(no SUs and SGs defined for this process I mean) in controller nodes > only, > > *[Hans] To AMF an external process is something outside the cluster. A > program executed on a controller is inside the cluster.* > > > > a. Is it possible to run as a external process? If yes what are the > steps to instantiate this process. I am aware of amf-adm commands to > instantiate sa-aware component, but what are the steps to > instantiate this external component(monitoring process implementing CLM > library)? > > *[Hans] guess you mean _using_ (not implementing) the CLM library. Just > start the client program! At the command prompt or init started or…* > > > > b. If no, is it need be a component configured in IMM model and > hence belongs to some SG, SU etc. and can be instantiated again using > > using the instantiate and terminate scripts. > > > > I am some what confused with the way CLM library can be consumed and hence > these above basic queries, which I believe would help me to proceed > further. I know there are the SAForum manuals and ppts but do we have any > sample example or code snippet that demonstrate this or try out some > examples to start with? > > *[Hans] there is no plain CLM tracker program but pls see tests/clmsv/src. > There is nothing magic here. The same way the ntfsubscribe program works a > “clmtracker” can work. A normal unix program with a main …* > > > > Thanks > > Greg > > > > > > > > On Fri, May 9, 2014 at 12:52 AM, Hans Feldt <[email protected]> > wrote: > > See inline > > But if you anyway want to push the information to all your sa-aware > components why not create a ClmTracker kind of server that can be > instantiated in each sa-aware component? > I would do it as a separate thread that just calls an installed callback > into client specific code. > > A bit like a SockerServer in python. > > /Hans > > > > -----Original Message----- > > From: Greg Hurlman [mailto:[email protected]] > > Sent: den 9 maj 2014 08:08 > > To: [email protected] > > Subject: [users] Integration issues > > > > Hi, > > > > Looking for help on some basic clarifications on the usage of CLM > library. > > I am trying to detect a cluster node failure (say node manual reboot, > admin > > shutdown or power failure) using CLM library from controller nodes or a > > node where no service units are hosted. Each node other then the > controller > > nodes, hosts couple of service units with SA-aware components. > > > > 1. Is this possible to monitor the nodes from controller nodes without > > integrating the library into the sa-aware apps? > > [Hans] of course, CLM is separate service from AMF > > > > > > 2. I am thinking of creating a separate component in the controller node > > which will only implement this library in order to monitor and receive > the > > cluster changes notifications. If so then do I need to configure this > > component in the IMM or just run as a Linux process? > > [Hans] Guess you mean AMF? Linux process is fine > > > > > 3. Are there any additional IMM configuration changes required to > integrate > > this library? > > [Hans] ? > > > > > > Appreciate for any help. > > > > Thanks > > Greg > > > > ------------------------------------------------------------------------------ > > Is your legacy SCM system holding you back? Join Perforce May 7 to find > out: > > • 3 signs your SCM is hindering your productivity > > • Requirements for releasing software faster > > • Expert tips and advice for migrating your SCM now > > http://p.sf.net/sfu/perforce > > _______________________________________________ > > Opensaf-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/opensaf-users > > > > > ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Opensaf-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensaf-users
