On Mon, Nov 24, 2025 at 04:02:18PM -0500, Robert Haas wrote: > I haven't done a full review of this and I'm not sure whether you want > me to spend more time on it...
I'd appreciate an eyeball check if you have the time. > I'm guessing that the reason why that doesn't easily work is > because you're relying on those locks to prevent multiple backends > from doing the same initialization? For GetNamedDSMSegment(), I bet we could avoid needing a PG_CATCH by taking the DSMRegistryLock exclusively when accessing the registry. But for GetNamedDSA() and GetNamedDSHash(), we want to keep the half-initialized entry so that we don't leak LWLock tranche IDs. I initially thought that might be okay, but if every backend is retrying, you could quickly run out of tranche IDs. -- nathan
