Selenium Grid 4 - Hub hanging in 'loading' state

Simon Kreß

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Jun 9, 2021, 8:02:14 AM6/9/21

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I have set up a Hub-Node configuration with Selenium Grid 4 according to Dynamic Grid - Hub and Node documentation (I used basically the same commands). The hub works fine and I can run tests on it, but after a couple of hours the Hub hangs and the webinterface shows 'loading' forever. Then I restarted the hub and node containers and it worked again for some hours, but then crashed again with the same behavior. I also updated the container images to the latest versions, but the issue keeps happening.

After looking in the logs of the containers and some research, I could not find the cause of the problem. Does anyone have an idea why this could be caused?

The logs from hub and node containers are attached. There is an error about the event bus..

Thanks in advance

Simon

node_log.txt

hub_log.txt

Simon Kreß

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Jun 14, 2021, 3:52:50 AM6/14/21

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Small update to the issue. I set up a new hub and a node, but did not execute any tests on them. I wanted to check, whether the execption is caused by a test from me. Unfortunately the same exception was thrown again after a couple of hours on both the node and the hub.

Simon Kreß

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Aug 27, 2021, 5:43:48 AM8/27/21

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The problem was resolved in the latest Selenium Grid release
https://github.com/SeleniumHQ/docker-selenium/issues/1337

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