Github user banjiewen commented on the pull request:
https://github.com/apache/couchdb-mem3/pull/11#issuecomment-125054233
The error exists because `N` is ~silently reduced to `NodeCount`.
To quote @rnewson's comment in the related ticket, which I still believe is
definitive here:
> A strong mechanism would be to remove the silent reduction of N when
creating a database, to instead return a 400 or 500 error message (we'll have
to bikeshed a little on whether the user is in error for asking for more
replicas than the cluster can create or the server is in error for not having
enough nodes to satisfy the user).
> When choosing "single node" in setup, the default N value should be set
to 1, so that database creations do not return the error.
IMO removing the error is all fine and good - it's not really the crux of
the interest here. If there's a "Single Node Mode", that should set `N` to 1,
and `N` should never be silently reduced.
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