Bug 227365

Summary: [Stress Tests EWS] run-layout-tests-in-guard-malloc-stress-mode intermittently failing with ServerError raised: Port 49001 is already in use
Product: WebKit Reporter: Ryan Haddad <ryanhaddad>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: aakash_jain, ap, jbedard, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=227473

Description Ryan Haddad 2021-06-24 11:05:30 PDT
[Stress Tests EWS] run-layout-tests-in-guard-malloc-stress-mode intermittently failing with ServerError raised: Port 49001 is already in use

10:00:42.191 1929 Starting Web Platform Test server ...
10:00:42.194 1929 Copying WebKit web platform server config.json
ServerError raised: Port 49001 is already in use.
Traceback (most recent call last):
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 92, in main
    run_details = run(port, options, args, stderr)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 487, in run
    run_details = manager.run(args)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py", line 370, in run
    needs_http=needs_http, needs_web_platform_test_server=needs_web_platform_test_server, needs_websockets=needs_websockets)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 123, in __init__
    self.start_servers()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 269, in start_servers
    self._port.start_web_platform_test_server()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/port/base.py", line 935, in start_web_platform_test_server
    Port._web_platform_test_server.start()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/servers/http_server_base.py", line 96, in start
    self._check_that_all_ports_are_available()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/servers/http_server_base.py", line 241, in _check_that_all_ports_are_available
    raise ServerError('Port %d is already in use.' % port)
ServerError: Port 49001 is already in use.

some recent examples:
https://ews-build.webkit.org/#/builders/62/builds/5754
https://ews-build.webkit.org/#/builders/62/builds/5708
https://ews-build.webkit.org/#/builders/62/builds/5736
Comment 1 Radar WebKit Bug Importer 2021-06-24 11:06:14 PDT
<rdar://problem/79733117>
Comment 2 Alexey Proskuryakov 2021-06-24 11:18:46 PDT
Another aspect of this is that EWS gets red when this happens. This should be an infrastructure failure with a different color.
Comment 3 Jonathan Bedard 2021-06-28 06:54:55 PDT
This is a weird one because run-webkit-tests is supposed to tear down these servers...I'd be surprised if this problem was exclusive to guard-malloc, because it shouldn't be.