The ClusterState is only used to retrieve to role to machine associations. -- A
On Mon, Jun 3, 2013 at 1:00 PM, Andrei Savu <savu.and...@gmail.com> wrote: > Hi Werner - > > Even if the cluster state is not recorded you can still terminate the > cluster - Whirr will remove all the nodes from the group based on the info > from the ClusterSpec. > > See: ClusterController.destroyCluster: > > https://github.com/apache/whirr/blob/trunk/core/src/main/java/org/apache/whirr/ClusterController.java#L223 > > Regards, > > -- Andrei Savu / axemblr.com > > > On Mon, Jun 3, 2013 at 12:56 PM, Werner Buck <em...@wernerbuck.nl> wrote: > >> Hi, >> >> I am currently using the internal Java Whirr API and it is going well. My >> only concern though is that if the program exist or crashes for some reason >> during BootstrapClusterAction, orphaned instance(s) are launched without >> there being a way to remove them. >> This is because the ClusterStateStore is only activated after "Nodes >> started" which can be seen in the following log: >> >> 10:37:17.058 [ForkJoinPool-1-worker-1] INFO >> o.a.w.actions.BootstrapClusterAction - Bootstrapping cluster >> 10:37:50.283 [pool-4-thread-2] INFO org.apache.whirr.compute.NodeStarter >> - Starting 1 node(s) with roles [noop] >> 10:39:19.196 [pool-4-thread-2] INFO org.apache.whirr.compute.NodeStarter >> - Nodes started: [{id=us-east-1/i-810698e3, providerId=i-810698e3, >> name=whirrtest-1-810698e3, ......] >> 10:39:19.200 [ForkJoinPool-1-worker-1] WARN >> o.a.w.state.ClusterStateStoreFactory - No cluster state is going to be >> persisted. There is no easy way to retrieve instance roles after launch. >> >> Note that i purposely activated no cluster state to get the warning. >> >> So is there a way to fetch nodes and destroy them based only on the >> ClusterSpec? >> This way I can save my ClusterSpec before launching, and when an error or >> crash occurs, I can call a method like: nukeCluster(clusterSpec). It would >> look for instances matching the CloudSpec (maybe introduce some unique >> identifier), and destroy the instances. >> >> With kind regards, >> >> Werner >> >> >
