[erlang-questions] ets:select_delete not atomic?

Oliver Bollmann <>
Mon Aug 12 14:16:52 CEST 2019


Hi, EtsName  = ets:new(test,[named_table,ordered_set]),
Res = ets:select_delete(EtsName,[{{Key},[],[true]}]).

Res should be 1 or 0!

But if i do this with a lot of process, at the same time,
it happend that two process get 1!

Start with: ets:insert(EtsName,{Key}).

Process One: ets:select_delete(EtsName,[{{Key},[],[true]}]).
Process Two: ets:select_delete(EtsName,[{{Key},[],[true]}]).

Process*One **get 1*  AND Process*Two get 1*, with the same key, of course!


Is this correct?

-- 
Grüße
Oliver Bollmann

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