krishvishal opened a new issue, #3154:
URL: https://github.com/apache/iggy/issues/3154
The C# e2e job (`C# • e2e / run`) intermittently fails with three tests in
`IggyClusterFixture` unable to start their follower container.
## Cause
`Iggy_SDK.Tests.Integration.csproj` targets both `net8.0` and `net10.0`, and
`dotnet test` launches one test host **per TFM in parallel**. The two hosts run
as independent processes.
`IggyClusterFixture` picks eight host ports up front and publishes them to
Docker with `WithPortBinding(port, port)`, the host port and the
container-internal port have to match because the leader advertises
`127.0.0.1:{port}` in its redirect responses to clients.
`UsedPorts` is `static`, but "static" is per-process. The net8.0 and net10.0
hosts each have their own copy, so they can (and occasionally do) draw the same
number from the 10k-wide range. Whichever test host reaches Docker first gets
the bind; the other's follower container fails with `address already in use`.
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