Bug#1052748: mpi4py fails test_dynproc.TestDPM.testJoin: socket.gaierror: [Errno -2] Name or service not known

[Lucas Nussbaum]

Hi Drew,

On 28/09/23 at 13:31 +0200, Drew Parsons wrote:
> Source: mpi4py
> Followup-For: Bug #1052748
> Control: severity 1052748 important
> Control: tags 1052748 moreinfo 
> 
> I can't reproduce this error, and debci tests at
> https://ci.debian.net/packages/m/mpi4py/ continue to pass
> So I'm downgrading severity.
> 
> I figure there are two possibilities
> - it was a transitory error related to some other library transition
> - or it's triggered by the network configuration on your test system.
> 
> For instance, https://github.com/mpi4py/mpi4py/issues/240 was
> triggered by a network configured with IPV6 only. But that issue
> should be resolved already in mpi4py 3.1.4
> 
> Your test log shows your network accesses http://127.0.0.1:12990
> so it is using IPv4.
> 
> Can you reproduce the testJoin error?

This was apparently caused by the build system using a hostname that
cannot be resolved. I fixed that, and mpi4py now builds fine. I'll let
you decide whether you want to keep this bug open or not.

Lucas