void handleContainerLaunchSuccess(String processorId, String containerHost) {
    if (hasActiveContainerPlacementAction(processorId)) {
      ContainerPlacementMetadata metadata = getPlacementActionMetadata(processorId).get();
      // Mark the active container running again and dispatch a response
      metadata.setContainerStatus(ContainerPlacementMetadata.ContainerStatus.RUNNING);
      updateContainerPlacementActionStatus(metadata, ContainerPlacementMessage.StatusCode.SUCCEEDED,
          "Successfully completed the container placement action started container on host " + containerHost);
    }
  }
Handles the state update on successful launch of a container, if this launch is due to a container placement action updates the
related metadata to report success

@param processorId logical processor id of container 0,1,2
samza-core/src/main/java/org/apache/samza/clustermanager/ContainerManager.java