[Autotest failure] network_WiFi_AttenuatedPerf failing with "Unhandled timeout: timed out" |
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Issue description
Sometimes the test times out when opening telnet connection. Catch the exception and potentially increase timeout limit.
06/17 09:28:22.570 WARNI| test:0637| The test failed with the following exception
Traceback (most recent call last):
File "/usr/local/autotest/client/common_lib/test.py", line 618, in _exec
*args, **dargs)
File "/usr/local/autotest/client/common_lib/test.py", line 837, in _call_test_function
raise error.UnhandledTestFail(e)
UnhandledTestFail: Unhandled timeout: timed out
Traceback (most recent call last):
File "/usr/local/autotest/client/common_lib/test.py", line 831, in _call_test_function
return func(*args, **dargs)
File "/usr/local/autotest/client/common_lib/test.py", line 746, in _cherry_pick_call
return func(*p_args, **p_dargs)
File "/usr/local/autotest/server/cros/network/wifi_cell_test_base.py", line 83, in warmup
self._wifi_context.setup()
File "/usr/local/autotest/server/cros/network/wifi_test_context_manager.py", line 213, in setup
attenuator_addr)
File "/usr/local/autotest/server/cros/network/attenuator_controller.py", line 106, in __init__
self._attenuator = attenuator.Attenuator(hostname, num_atten)
File "/usr/local/autotest/server/cros/network/attenuator.py", line 18, in __init__
self.open(host)
File "/usr/local/autotest/server/cros/network/attenuator.py", line 33, in open
self._tnhelper.open(host, port)
File "/usr/local/autotest/server/cros/network/telnet_helper.py", line 34, in open
self._tn.open(hostname, port, LONG_TIMEOUT)
File "/usr/lib/python2.7/telnetlib.py", line 227, in open
self.sock = socket.create_connection((host, port), timeout)
File "/usr/lib/python2.7/socket.py", line 571, in create_connection
raise err
timeout: timed out
,
Aug 30
,
Sep 10
The following revision refers to this bug: https://chromium.googlesource.com/chromiumos/third_party/autotest/+/45c8391e2a4b0cf2155230204d253a91ac763ab7 commit 45c8391e2a4b0cf2155230204d253a91ac763ab7 Author: harpreet <harpreet@google.com> Date: Mon Sep 10 18:40:43 2018 autotest: network_WiFi_AttenuatorPerf - Fix multiple issues Fixing 3 issues that we have see on the attenuated (grover) setups in the lab. 1) Unhandled timeout when opening telnet connection ( crbug.com/854377 ) 2) TypeError for signal level. output_perf_value expects string or number but wifi_signal_level returns None if signal is not detected. This usually happens on runs with high attenuation ( crbug.com/854378 ) 3) Telnet commands fails to return valid data. We use to see this error sometimes prior to Aug 10 but since then failures resulting from this has spiked. The issue seems to be with telnet connection that we create though the connection remains open, we stop receiving expected data using telnet expect. This seems to get worse with large number of telnet calls. Closing and reopening telnet connection fixes the issue. ( crbug.com/876945 ) BUG= chromium:854377 , chromium:854378 , chromium:876945 TEST=Tested against eve in grover setup in wifi lab. Change-Id: Iccb711c59f29a216ea6a936c7757b4048fd0cc1c Reviewed-on: https://chromium-review.googlesource.com/1188984 Commit-Ready: Harpreet Grewal <harpreet@chromium.org> Tested-by: Harpreet Grewal <harpreet@chromium.org> Reviewed-by: Kirtika Ruchandani <kirtika@chromium.org> (cherry picked from commit bd17064216b4a299b52cc7951e326008bf23d68b) Reviewed-on: https://chromium-review.googlesource.com/1196769 Reviewed-by: Harpreet Grewal <harpreet@chromium.org> Commit-Queue: Harpreet Grewal <harpreet@chromium.org> Trybot-Ready: Harpreet Grewal <harpreet@chromium.org> [modify] https://crrev.com/45c8391e2a4b0cf2155230204d253a91ac763ab7/server/cros/network/attenuator.py [modify] https://crrev.com/45c8391e2a4b0cf2155230204d253a91ac763ab7/server/cros/network/telnet_helper.py [modify] https://crrev.com/45c8391e2a4b0cf2155230204d253a91ac763ab7/server/site_tests/network_WiFi_AttenuatedPerf/network_WiFi_AttenuatedPerf.py [modify] https://crrev.com/45c8391e2a4b0cf2155230204d253a91ac763ab7/server/cros/network/attenuator_controller.py
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Sep 13
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Comment 1 by bugdroid1@chromium.org
, Aug 30