@Override protected void doResume() throws Exception { LOG.info("Resuming flowlet: " + flowletContext); // Open producers for (ProducerSupplier producerSupplier : producerSuppliers) { producerSupplier.open(); } // Open consumers for (ConsumerSupplier consumerSupplier : consumerSuppliers) { consumerSupplier.open(flowletContext.getInstanceCount()); } driver.resume(); LOG.info("Flowlet resumed: " + flowletContext); }