Class YarnResourceManagerDriver

    • Method Detail

      • deregisterApplication

        public void deregisterApplication​(ApplicationStatus finalStatus,
                                          @Nullable
                                          String optionalDiagnostics)
        Description copied from interface: ResourceManagerDriver
        The deployment specific code to deregister the application. This should report the application's final status.

        This method also needs to make sure all pending containers that are not registered yet are returned.

        Parameters:
        finalStatus - The application status to report.
        optionalDiagnostics - A diagnostics message or null.
      • requestResource

        public CompletableFuture<YarnWorkerNode> requestResource​(TaskExecutorProcessSpec taskExecutorProcessSpec)
        Description copied from interface: ResourceManagerDriver
        Request resource from the external resource manager.

        This method request a new resource from the external resource manager, and tries to launch a task manager inside the allocated resource, with respect to the provided taskExecutorProcessSpec. The returned future will be completed with a worker node in the deployment specific type, or exceptionally if the allocation has failed.

        Note: The returned future could be cancelled by ResourceManager. This means ResourceManager don't need this resource anymore, Driver should try to cancel this request from the external resource manager.

        Note: Completion of the returned future does not necessarily mean the success of resource allocation and task manager launching. Allocation and launching failures can still happen after the future completion. In such cases, ResourceEventHandler.onWorkerTerminated(org.apache.flink.runtime.clusterframework.types.ResourceID, java.lang.String) will be called.

        The future is guaranteed to be completed in the rpc main thread, before trying to launch the task manager, thus before the task manager registration. It is also guaranteed that ResourceEventHandler.onWorkerTerminated(org.apache.flink.runtime.clusterframework.types.ResourceID, java.lang.String) will not be called on the requested worker, until the returned future is completed successfully.

        Parameters:
        taskExecutorProcessSpec - Resource specification of the requested worker.
        Returns:
        Future that wraps worker node of the requested resource, in the deployment specific type.
      • releaseResource

        public void releaseResource​(YarnWorkerNode workerNode)
        Description copied from interface: ResourceManagerDriver
        Release resource to the external resource manager.
        Parameters:
        workerNode - Worker node to be released, in the deployment specific type.
      • getContainerCompletedCause

        public static String getContainerCompletedCause​(org.apache.hadoop.yarn.api.records.ContainerStatus containerStatus)