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IP socket options may be applied to UDS upstream host connections #4175
While investigating https://oss-fuzz.com/v2/testcase-detail/6542943040045056, @anirudhmurali and I figured out that we were applying IP socket option (specifically the
We can either flag this during config loading or silently ignore/warn at runtime as a resolution. I haven't done a deep dive yet into the code, but I think it might be the case that we don't know until something like EDS whether a host is IP or UDS (does EDS force IP only? can't remember). Could we have a mix of IP and UDS hosts in a cluster? @mattklein123
TBH I don't remember. Someone will need to look at the code. I don't see any reason why EDS can't expose a UDS host or a mix of hosts.