Cypress hangs during execution of test suite

Current behavior:

During a test run Cypress hangs and never exit, it doesn’t print anything in the stdout while it’s blocked.

From the DEBUG log can be seen that it goes in a kind of loop and prints cypress:server:util:process_profiler current & mean memory and CPU usage by process group every 10 seconds until is terminated by the CI timeout

Desired behavior:

Cypress doesn’t hang and instead fails if something goes wrong.

Test code to reproduce

It’s not happening 100% of the times so I don’t know what’s the root cause, however I’ve attached a debug log

Versions

Cypress 4.0.2 - Chrome 78/Firefox 70.0.1 - Unix executionLogRedacted.txt

Issue Analytics

State:
Created 4 years ago
Reactions:5
Comments:37 (2 by maintainers)

Top GitHub Comments

6reactions

patrick-silvera-ppcommented, Apr 28, 2022

Same issue has described by OP. I’m running a 75 specs test suite on 20 parallel machines.

Github Actions
Docker image cypress/browsers:node16.13.2-chrome100-ff98
cypress 9.5.4
cypress-cucumber-preprocessor 9.0.5

While i’m writing this, 5 runs out the 7 last runs are hanging in Cypress dashboard. This is costing quite a lot of CI money, even with a timeout set in Github Actions. I tried this without success:

remove before and after hooks
switch to Docker and use shm_size: 2gb
add more machines so there’s less specs running on each machine
disable video "video": false
"numTestsKeptInMemory": 0
switch to Electron instead of Chrome

This is random, I wish I could give you more info to address this issue. Is there any other way we could help? This has been a problem for a lot of people for 2 years now.

5reactions

Cubo25commented, Aug 6, 2020

Please I have this problem of running it locally … it hangs from time to time on headless mode with chrome … any ideas ?