The scp invocations have timed out twice in recent weeks copying files to ECS.
Example:
[js_test:aws_e2e_ecs] sh26051| INFO:__main__:RUNNING COMMAND: ['scp', '-o', 'StrictHostKeyChecking=no', '-P', '22', '-r', '/data/mci/07b8f1aa3d867b5bcddce00d0891590f/src/dist-test/bin/', 'root@1.1.1.1:/root/install_dir'] [js_test:aws_e2e_ecs] sh26051| ssh: connect to host 1.1.1.1 port 22: Connection timed out [js_test:aws_e2e_ecs] sh26051| lost connection