Tests failing with faster testdrive in Cluster Isolation Test & Postgres CDC Test about materialize

[def-]

And again: https://buildkite.com/materialize/tests/builds/77924 I'm not sure this is even a testing problem. Maybe it's an actual product issue. My workaround of sleeping longer didn't work. I'll ask the storage team to take a look.

[def-]

For the Cluster Isolation Test I'll try adding more sleep. Edit: That didn't work. I also can't reproduce the issue locally.

@sploiselle For Postgres CDC I'm not sure why the error would be different. Is that timing dependent?

[sploiselle]

@def- Ah--that error is timing dependent yes. The error you got is an error we expect to be overwritten eventually. It's possible that this is flaky in a way I didn't anticipate.

[def-]

The same Pg CDC error just happened with the testdrive change reverted too: https://buildkite.com/materialize/tests/builds/76590#018dd6ba-75dc-446a-a1a6-bd8ac2f33175

[def-]

The same Cluster Isolation Test error also just happened without faster testdrive: https://buildkite.com/materialize/tests/builds/77422#018e09fa-1b5f-468e-a570-8cccc8802cb4

[benesch]

Added to the storage mega tracker as a p2.