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https://issues.apache.org/jira/browse/CASSANDRA-17594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17540258#comment-17540258
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David Capwell commented on CASSANDRA-17594:
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bq. Also, why is it fine to exclude errors by default and not on per case basis?
Some errors are generic and can happen in 100% of tests, such as connection
shutdown early; we would need to update 100% of tests to include this default
list
bq. Why do DSE popped up?
I wasn't 100% sure of this as well, was confusing why it wasn't more present...
Talked with [~samt] and client protocol negotiation uses highest version it
knows and moves down the list until server stops rejecting, in python driver
the "highest" versions are DSE_v2 then V1 (linked source but linter got made,
so gave all parts needed to get the link <_<...
What I couldn't figure out was why was it only 2 tests that hit DSE and the
rest were complaining about v5?
> Fix flaky python-tests due to connection getting closed
> -------------------------------------------------------
>
> Key: CASSANDRA-17594
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17594
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/python
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: NA
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> We log unknown exceptions at the networking level, which includes case where
> the remote side closes the connection (such as the cases caused by shutting
> down), depending on how quickly the instances shutdown, this could cause
> python-dtest to fail for random tests with a message such as
> {code}
> Unexpected error found in node logs (see stdout for full details). Errors:
> [WARN [epollEventLoopGroup-5-9] 2022-05-03T16:47:03,800
> ExceptionHandlers.java:134 - Unknown exception in client networking
> io.netty.channel.unix.Errors$NativeIoException: writeAddress(..) failed:
> Connection reset by peer, WARN [epollEventLoopGroup-5-9]
> 2022-05-03T16:47:03,800 ExceptionHandlers.java:134 - Unknown exception in
> client networking
> io.netty.channel.unix.Errors$NativeIoException: writeAddress(..) failed:
> Connection reset by peer]
> {code}
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