Increase # training steps for test_tf_cifar to mitigate race condition (#160)

Author: winstonaws

tests/integ/test_tf_cifar.py

@@ -37,7 +37,7 @@ def test_cifar(sagemaker_session, tf_full_version):
         dataset_path = os.path.join(DATA_DIR, 'cifar_10', 'data')
 
         estimator = TensorFlow(entry_point='resnet_cifar_10.py', source_dir=script_path, role='SageMakerRole',
-                               framework_version=tf_full_version, training_steps=20, evaluation_steps=5,
+                               framework_version=tf_full_version, training_steps=500, evaluation_steps=5,
                                train_instance_count=2, train_instance_type='ml.p2.xlarge',
                                sagemaker_session=sagemaker_session, train_max_run=20 * 60,
                                base_job_name='test-cifar')