When a node which provides the service have high CPU and heap memory usage. Can I switch the service from that node to the other eligible node ?
On Mon, Jul 11, 2016 at 4:40 PM, Vladislav Pyatkov <[email protected]> wrote: > Hello Kamal, > > - How to tell Ignite to move a clustered singleton service from one node > to another with external scripts? > > What are you mean when say: "move a clustered singleton service from one > node to another"? If singleton service was deployed on cluster group, it > will stay until, last node leaves the cluster. > > In case the cluster node on which the service was deployed crashes or > stops, Ignite will automatically redeploy it on another node. [1] > > [1]: https://apacheignite.readme.io/docs/cluster-singletons > > On Mon, Jul 11, 2016 at 7:48 AM, Kamal C <[email protected]> wrote: > >> Sorry for polluting the mailing list. >> >> Ignition.stop(false); // internally stops / cancels the local Ignite >> service. >> >> Can anyone answer for the 2nd question? >> >> --Kamal >> >> On Mon, Jul 11, 2016 at 10:00 AM, Kamal C <[email protected]> wrote: >> >>> Vladislav, >>> >>> I've applied your suggestion. Still, Ignite closes the service running >>> in all the nodes, >>> >>> ClusterGroup grp = >>> ignite.cluster().forNode(ignite.cluster().localNode()); >>> ignite.services(grp).cancel(calcService); >>> >>> >>> *Exception* >>> class org.apache.ignite.IgniteException: Failed to find deployed >>> service: CalcService >>> at >>> org.apache.ignite.internal.processors.service.GridServiceProxy.invokeMethod(GridServiceProxy.java:155) >>> at >>> org.apache.ignite.internal.processors.service.GridServiceProxy$ProxyInvocationHandler.invoke(GridServiceProxy.java:331) >>> at com.sun.proxy.$Proxy28.add(Unknown Source) >>> at >>> my.apache.ignite.examples.servicegrid.ServiceDeployer.useService(ServiceDeployer.java:63) >>> >>> >>> Re-framing my question: >>> >>> - Is Service.cancel() method is not a appropriate place for resource >>> cleanups on shutdown? >>> - How to tell Ignite to move a clustered singleton service from one >>> node to another with external scripts? >>> >>> -- Kamal >>> >>> On Sat, Jul 9, 2016 at 1:07 AM, Vladislav Pyatkov <[email protected]> >>> wrote: >>> >>>> Hello Kamal, >>>> >>>> Try to use Ignite.services(ClusterGroup >>>> <http://ignite.apache.org/releases/1.0.0/javadoc/org/apache/ignite/cluster/ClusterGroup.html> >>>> grp) >>>> for local node group. >>>> >>>> >>>> *Ignition.ignite().services(Ignition.ignite().cluster().localNode()).cancel(serviceName);* >>>> >>>> On Fri, Jul 8, 2016 at 9:48 AM, Kamal C <[email protected]> wrote: >>>> >>>>> Hi, >>>>> >>>>> I have a 3 node Ignite cluster and deployed a service using Node >>>>> Singleton approach. The service started to run in all the 3 nodes. >>>>> >>>>> Whenever a node stopped, the below line gets called as I'm doing >>>>> resource cleanups inside *IgniteService.cancel(ServiceContext >>>>> context)* method. >>>>> >>>>> *Ignition.ignite().services().cancel(serviceName);* >>>>> >>>>> But, it cancels the service from all the nodes. How to cancel a >>>>> locally running Ignite service gracefully? >>>>> >>>>> -- >>>>> Kamal >>>>> >>>> >>>> >>>> >>>> -- >>>> Vladislav Pyatkov >>>> >>> >>> >> > > > -- > Vladislav Pyatkov >
