Mnesia remote read behaviour ?
Dan Gudmundsson
dgud@REDACTED
Wed Jan 7 10:37:59 CET 2004
Nigel.Head@REDACTED writes:
> What I am hoping for is to find out that that remote reads might be sent to
> other nodes on the same host in preference to creating external network traffic
> .... or if this isn't the case by default how I might organise that it happen
> that way?
>
> Additionally, choosing a ram or disc copy over a disc_only copy would be nice
> .....
>
> BTW: I've been plunging around the mnesia source but I can't seem to find the
> right place to figure this for myself so a pointer into the source would help
> reduce the level of future dumb queries :-)
>
> Thanks,
> Nigel.
>
It picks the first node from a list :-)
And it prefers nodes which are ram_copies or disc_copies.
The specific code is here:
mnesia_lib:set_remote_where_to_read/2
/Dan
--
Dan Gudmundsson Project: Mnesia, Erlang/OTP
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