Possible infinite loop while running in Jenkins with retries

Current behavior

While running Cypress with a docker image inside Jenkins, we are currently encountering an infinite loop (or what appears to be one). Seems related to this issue: https://github.com/cypress-io/cypress/issues/9040, but I am still encountering the problem with versions 6.3.0 and 6.4.0 of cypress.

With DEBUG=cypress:* set, I get these two messages repeatedly until I either abort the Jenkins build or lerna crashes.

cypress:server:browsers:electron debugger: sending Page.screencastFrameAck with params { sessionId: 1 }
cypress:server:browsers:electron debugger: received response to Page.screencastFrameAck: {}

Appears to be related to retries, as it can successfully run occasionally, and I’ve seen that when it does pass all tests, the tests ran quickly with no retry attempts.

Desired behavior

Test code to reproduce

Unfortunately, I can’t share my code, but can try and provide any more information you need.

Versions

Issue exists in 6.2.1, 6.3.0, and 6.4.0 at minimum. Haven’t heard of or seen this issue from previous versions.

[KeKs0r]

I have already commented on a similar issue thatp proposed some changes: https://github.com/cypress-io/cypress/issues/8206

We are experiencing this stall in 70% or more. This means, rerunning CI several times for every change to go through. I am not sure how to debug or address this issue further.

Our Setup

• Cypress 6.8.0
• React & Node with Typescript
• We don’t have retries enabled
• we are using nx.dev for our monorepo.
• “only” 9 test files, which usually complete in 3 minutes.
• Authentication via OAuth

Things we have tried so far

1. Run garbage collection between tests: https://github.com/cypress-io/cypress/issues/8525
2. Increase the CI container by 4x (to 16gb ram) - it used to even run with 4gb of ram in ci
3. Switch from electron to chrome
4. Set “numTestsKeptInMemory”: 0
5. Disable video recording
6. Updating to Cypress 7
7. Running every test file individually

None of which seems to help.

[sr95818]

same issue: cypress 6.8.0, no retries set (no retries setting defined which means 0), sometimes cypress hangs when running on dev.azure (we’re never experiencing the same behavior locally)

the log always ends with these repeating lines:

cypress:server:browsers:electron debugger: received response to Page.screencastFrameAck: {}
cypress:server:browsers:electron debugger: sending Page.screencastFrameAck with params { sessionId: 1 }
...
cypress:server:browsers:electron debugger: received response to Page.screencastFrameAck: {}
cypress:server:browsers:electron debugger: sending Page.screencastFrameAck with params { sessionId: 1 }

until CI cancels the job due to timeout

I just want to chime in and say that we too are experiencing the same issue, however, we’re experiencing it in all environments.