René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Bursty prints","articleBody":"The print statements from app.py appear in bursts, with long delays between bursts.\r\n\r\n- Even the initial \"Starting rovercode service\" print is delayed.\r\n- The problem seems to be only with printing -- the server still runs and responds to a GET on the `/` endpoint.\r\n- This does *not* seem to be related to @jeeshofone's logging changes in the upcoming systemd service installation. It happens now in the standard docker install.\r\n- Increasing the sensor polling period to 20 seconds did not improve the problem.\r\n- Commenting out all `socketio.start_background_task()` and `socketio.run()` made the problem go away.\r\n- Using the debugging server instead of eventlet behind socketio did not help.\r\n- [This thread](https://github.com/miguelgrinberg/Flask-SocketIO/issues/418) suggested sprinkling in some `socketio.sleep(0)`s to release the CPU. I put them a lot of places, with no effect.\r\n- That thread also suggested monkey_patching with eventlet. We should probably add that, but it didn't seem to fix the problem.","author":{"url":"https://github.com/hbradio","@type":"Person","name":"hbradio"},"datePublished":"2018-05-31T02:59:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/151/rovercode/issues/151"}