Hey Ludo,

> Now, the only way ‘narinfo-string’ can take too long these days is (I
> think) if the store GC lock is held (we should check that hypothesis,
> but I believe that if the GC lock is held, then the ‘query-path-info’
> RPC made from ‘narinfo-string’ might block until the lock is released).
> The GC lock is no longer held for hours on berlin, so there’s less
> pressure to address that.

Thanks for having a look to that issue. On my side, I'd like to take
some time to look closely at the situation.

> To summarize: I think ‘guix publish’ is okay as-is but we should
> fiberize it sometime.

I think however that it would be nice to create a wip branch for those
changes, deploy it and monitor it closely on Berlin before pushing. From
experience, the publish code is really fragile and the I/O pressure on
Berlin can exhibit a lot of unexpected issues.

Mathieu



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