anchor.diff:  
   -include("match_stream.hrl").
   
  --define(REDIS_CONNECTIONS, 200).
  +-define(REDIS_CONNECTIONS, 1000).
   
   -record(state, {redis :: [pid()]}).
   -opaque state() :: #state{}.
  
positive.code:               end,
              gen_server:reply(From, Res)
      end),
    {noreply, State#state{redis = Redis ++ [RedisConn]}}.
  
  %% @hidden
  -spec handle_cast(_, state()) -> {noreply, state()}.
  
negative.code: %% @hidden
  -spec handle_call(tuple(), reference(), state()) -> {reply, {ok, term()} | {throw, term()}, state()}.
  handle_call(Request, From, State) ->
    [RedisConn|Redis] = lists:reverse(State#state.redis),
    proc_lib:spawn_link(
      fun() ->
              Res =
  