René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Parallel jobs seems to misuse tunnels","articleBody":"I'm using `karma-browserstack-launcher` in GitHub Actions to run tests on several browsers.\r\n\r\n```yaml\r\nstrategy:\r\n  matrix:\r\n    browser: ['bs_win_ie11', 'bs_win_edge', 'bs_mac_chrome', 'bs_mac_firefox', 'bs_mac_safari']\r\n```\r\n\r\nThe YAML is creating 5 parallel jobs, each running tests on corresponding browser. But the jobs' logs shows that the parallel jobs are receiving messages from each other's tunnel.\r\n\r\nThe `bs_win_ie11` job (the first to run):\r\n\r\n```\r\n29 05 2021 11:16:10.261:INFO [karma-server]: Karma v6.3.2 server started at http://localhost:9876/\r\n29 05 2021 11:16:10.264:INFO [launcher]: Launching browsers bs_win_ie11 with concurrency unlimited\r\n29 05 2021 11:16:10.328:INFO [launcher]: Starting browser IE 11.0 (Windows 10) on BrowserStack\r\n29 05 2021 11:16:14.694:INFO [launcher.browserstack]: IE 11.0 (Windows 10) session at https://automate.browserstack.com/builds/f04621633b17d4e093614166b355b0fd76eff56e/sessions/b1cff1ace638252d23c60c66317a879569443321\r\n29 05 2021 11:16:15.600:WARN [web-server]: 404: /bac.jpg\r\n29 05 2021 11:16:15.625:WARN [web-server]: 404: /elva-fairy-480w.jpg\r\n29 05 2021 11:16:16.500:INFO [Chrome 90.0.4430.72 (Mac OS 10.15.7)]: Connected on socket xoWxToYEtv0CKgzMAAAB with id 87431852\r\n```\r\n\r\nThe last line seems to indicate that `bs_win_ie11` is receiving messages from a Chrome session. And the test output that follows also came from Chrome instead of IE.\r\n\r\nThe `bs_mac_chrome` job:\r\n\r\n```\r\n29 05 2021 11:15:38.179:INFO [karma-server]: Karma v6.3.2 server started at http://localhost:9876/\r\n29 05 2021 11:15:38.183:INFO [launcher]: Launching browsers bs_mac_chrome with concurrency unlimited\r\n29 05 2021 11:15:38.246:INFO [launcher]: Starting browser Chrome latest (OS X Big Sur) on BrowserStack\r\n29 05 2021 11:15:42.538:INFO [launcher.browserstack]: Chrome latest (OS X Big Sur) session at https://automate.browserstack.com/builds/f04621633b17d4e093614166b355b0fd76eff56e/sessions/18b1facd3c4004febe69c1f941a1890c02f0f717\r\n29 05 2021 11:20:50.213:WARN [launcher.browserstack]: Chrome latest (OS X Big Sur) has not captured in 300000 ms, killing.\r\n```\r\n\r\nSeems that `bs_mac_chrome` session is occupied by the `bs_win_ie11` job thus the `bs_mac_chrome` failed due to timeout.\r\n\r\nMy workaround for now is to run these jobs sequentially to avoid this problem, but it's not a practical solution because it takes too long to finish all sequential jobs.\r\n\r\nFYI I'm using a sponsored plan on BrowserStack which have up to 5 parallel running threads.","author":{"url":"https://github.com/SevenOutman","@type":"Person","name":"SevenOutman"},"datePublished":"2021-05-29T12:25:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/11/github-actions/issues/11"}