shackle
0.6.20
Estrutura de cliente de rede Erlang de alto desempenho
- behavior ( shackle_client ).
- export ([
init / 0 ,
setup / 2 ,
handle_request / 2 ,
handle_data / 2 ,
terminate / 1
]).
- record ( state , {
buffer = <<>> :: binary (),
request_counter = 0 :: non_neg_integer ()
}).
- spec init ( Options :: term ()) ->
{ ok , State :: term ()} |
{ error , Reason :: term ()}.
init ( _Options ) ->
{ ok , # state {}}.
- spec setup ( Socket :: inet : socket (), State :: term ()) ->
{ ok , State :: term ()} |
{ error , Reason :: term (), State :: term ()}.
setup ( Socket , State ) ->
case gen_tcp : send ( Socket , << " INIT " >>) of
ok ->
case gen_tcp : recv ( Socket , 0 ) of
{ ok , << " OK " >>} ->
{ ok , State };
{ error , Reason } ->
{ error , Reason , State }
end ;
{ error , Reason } ->
{ error , Reason , State }
end .
- spec handle_request ( Request :: term (), State :: term ()) ->
{ ok , RequestId :: external_request_id (), Data :: iodata (), State :: term ()}.
handle_request ( noop , State ) ->
Data = arithmetic_protocol : request ( 0 , noop , 0 , 0 ),
{ ok , undefined , Data , State };
handle_request ({ Operation , A , B }, # state {
request_counter = RequestCounter
} = State ) ->
RequestId = request_id ( RequestCounter ),
Data = request ( RequestId , Operation , A , B ),
{ ok , RequestId , Data , State # state {
request_counter = RequestCounter + 1
}}.
- spec handle_data ( Data :: binary (), State :: term ()) ->
{ ok , [{ RequestId :: external_request_id (), Reply :: term ()}], State :: term ()}.
handle_data ( Data , # state {
buffer = Buffer
} = State ) ->
Data2 = << Buffer / binary , Data / binary >>,
{ Replies , Buffer2 } = parse_replies ( Data2 , []),
{ ok , Replies , State # state {
buffer = Buffer2
}}.
- spec terminate ( State :: term ()) -> ok .
terminate ( _State ) -> ok .
shackle_pool : start ( shackle_pool : name (), client (), client_options (), pool_options ())
Nome | Tipo | Padrão | Descrição |
---|---|---|---|
endereço | inet:endereço_ip() | inet:nome do host() | "127.0.0.1" | endereço do servidor (anteriormente ip) |
porta | inet:número_porta() | indefinido | porta do servidor |
protocolo | manilha_tcp | manilha_udp | manilha_ssl | shackle_tcp | protocolo do servidor |
reconectar | booleano() | verdadeiro | reconectar conexões fechadas |
reconnect_time_max | pos_inteiro() | infinidade | 120.000 | tempo máximo de reconexão em milissegundos |
reconnect_time_min | pos_inteiro() | 1000 | tempo mínimo de reconexão em milissegundos |
opções_de_soquete | [gen_tcp:connect_option() | gen_udp:opção()] | [] | opções passadas para o soquete |
Nome | Tipo | Padrão | Descrição |
---|---|---|---|
backlog_size | pos_inteiro() | infinidade | 1024 | número máximo de solicitações simultâneas por conexão |
max_retries | não_neg_inteiro() | 3 | número máximo de tentativas para encontrar um servidor ativo |
tamanho_da_piscina | pos_inteiro() | 16 | número de conexões |
pool_strategy | aleatório | round_robin | aleatório | estratégia de seleção de conexão |
1 > shackle : call ( pool_name , { get , << " test " >>}).
{ ok , << " bar " >>}
2 > { ok , ReqId } = shackle : cast ( pool_name , { get , << " foo " >>}, 500 ).
{ ok , { anchor , anchor_client , # Ref < 0.0 . 0.2407 > }}
3 > shackle : receive_response ( ReqId ).
{ ok , << " bar " >>}
Shackle se integra à biblioteca de telemetria independente de backend. Consulte shackle_telemetry
para obter a lista de eventos de telemetria que o shackle pode emitir.
make dialyzer
make eunit
make xref
Para executar alvos de teste de desempenho você deve primeiro iniciar o servidor:
./bin/server.sh
Então você pode executar o bench
ou profile
de destino:
make bench
make profile
Nome | Descrição |
---|---|
âncora | Cliente Memcached |
nó aspike | Cliente Aerospike |
bóia | Cliente HTTP 1.1 |
brilho | Produtor Kafka |
marina | Cliente Cassandra CQL |
estatísticasderl | Cliente StatsD |
The MIT License (MIT)
Copyright (c) 2015-2023 Louis-Philippe Gauthier
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.