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Ouranosinc / PAVICS-e2e-workflow-tests

Test user-level workflow.
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Intermittent warnings "Unable to revert mtime: /opt/conda/envs/birdy/fonts" confuse new Jupyter users #97

Closed tlvu closed 2 years ago

tlvu commented 2 years ago

This warning happens only in "interactive" mode when a real user uses the Jupyter env in a browser. During nightly Jenkins unattended run, it does not happen.

The warning appears only once and may or may not re-appear again after a "Restart kernel". It is completely intermittent.

FYI @huard

tlvu commented 2 years ago

@huard @richardarsenault I might possibly have a fix for this intermittent warning "Unable to revert mtime: /opt/conda/envs/birdy/fonts".

I need to test my fix. Do you happen to remember which Raven notebooks the warning was showing up? This do not happen during Jenkins automated test so I have to reproduce this live, in a Jupyter env.

richardarsenault commented 2 years ago

@tlvu From what I understand, the first notebook (01_intorduction_to_ravenpy) was one of the culprits, but it only happened to a few (maybe 10?) participants out of the 50 that were attending at the time. When they re-ran the cells, it worked again. So I fear it is related to the server being overwhelmed somehow, and that it will not be so easy to reproduce. I was a bit busy explaining things but Perhaps @huard and @cjauvin have more insight since they were more in the "debugging" mode.

tlvu commented 2 years ago

Weirdly enough I was not able to reproduce this problem with our current Jupyter env. I was able to reproduce before. This seems to be very intermittent.

I attempted a blind fix in https://github.com/Ouranosinc/PAVICS-e2e-workflow-tests/pull/101. Hopefully it works. If not, re-open this issue.