this example. @startuml concise "Client" as Client concise "Server" as Server concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 +25 is await +50 is recv +25 is idle @100 <-> @275 : no need to re-request from server @Server 25 is recv +25 +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200 is stale @enduml Guía

this example. @startuml concise "Client" as Client concise "Server" as Server concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 +25 is await +50 is recv +25 is idle @100 <-> @275 : no need to re-request from server @Server 25 is recv +25 +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200 is stale @enduml Guía

@enduml 10.16 Complete example Thanks to Adam Rosien for this example. @startuml concise "Client" as Client concise "Server" as Server Guía de Referencia del Lenguaje PlantUML (1.2021.2) 182 / 388 10 "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 server @Server 25 is recv +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200

@enduml 10.16 Complete example Thanks to Adam Rosien for this example. @startuml concise "Client" as Client concise "Server" as Server Guía de Referencia del Lenguaje PlantUML (1.2021.1) 180 / 383 10 "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 server @Server 25 is recv +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200

@enduml 10.16 Complete example Thanks to Adam Rosien for this example. @startuml concise "Client" as Client concise "Server" as Server Guía de Referencia del Lenguaje PlantUML (1.2021.2) 193 / 406 10 "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 server @Server 25 is recv +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200

this example. @startuml concise "Client" as Client concise "Server" as Server concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await await +75 is recv +25 is idle +25 is send Client -> Server@+25 : GET\nIf-Modified-Since: 150 +25 is await +50 is recv +25 is idle @100 <-> @275 : no need to re-request from server @Server 25 is recv +25 +25 is work +25 is send Server -> Client@+25 : 200 OK\nExpires: 275 +25 is idle +75 is recv +25 is send Server -> Client@+25 : 304 Not Modified +25 is idle @Cache 75 is fresh +200 is stale @enduml Guía

separada utilizando una de las órdenes que se muestran. $ mc -v path/to/filename_to_view $ mcview path/to/filename_to_view 1.3.7. Selección inteligente del visor en MC Pulse Intro en un archivo y el programa 199 config::ifupdownherramienta estándar para subir o bajar la red (específico de Debian) isc-dhcp-client V:217, I:981 2875 config::low- level cliente DHCP pppoeconf V:0, I:5 186 config::helper ayudante contraseñas para el equipo inteligente editando «/etc/exim4/passwd.client». $ sudo vim /etc/exim4/passwd.client ... $ cat /etc/exim4/passwd.client ^smtp.*\.hostname\.dom:username@hostname.dom:password Configura

7 Cambio de API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 34.1.8 Updating Client and Service . . . . . . . . . . . . . . . . . . . . . . . 211 34.2 Working With AIDL Types . . of creating a Binder interface. We're then going to both implement the described service and write client code that talks to that service. 34.1.1 Interfaces de AIDL La API de tu servicio se declara mediante years: i32) -> binder::Result; } Your service will need to implement this trait, and your client will use this trait to talk to the service. • The generated bindings can be found at out/soong/

03 MDS各组件详细介绍 Q&A基本架构 • 元数据节点 MDS 管理元数据信息 收集集群状态信息，自动调度 • 数据节点 Chunkserver 数据存储 副本一致性 • 客户端 Client 对元数据增删改查 对数据增删改查 • 快照克隆服务器MDS各个组件 MDS是中心节点，负责元数据管理、集群状态收集与调度。MDS包含以下几个部分： • Topology: 管理集群的 topo copyset-4: (cs6, cs9, cs12)COPYSET client MDS leader Chunk server 1、发起请求 2、查询元数据 5、返回结果 5、返回结果 user 3、查询leader节点 4、向leader cs发起请求 1. 用户发起请求(fd, offset, length) ； 2. Client 向 mds 查询请求的元数据， 并缓存到本地，请求转换为对 (CopysetId ,chunkId, offset in chunk, length in chunk)； 3. Client 向 chunkserver 查询 chunk 所在的 copyset的leader Chunkserver节点； 4. Client 向 leader 发送读写请求client (IP, port, CopysetId, chunkId, offset in chunk, length

mente otras distri- buciones UNIX Cliente Firebird libfbclient.so.1. 5.n (binario); libfb- client.so.1, libfb- client.so (enlace sim- bólico) Los antiguos enlaces libgds* también se insta- lan. /usr/lib de la misma manera que lo haría para instalar el servidor -pero seleccione la opción SOLO CLIENTE (client only) del menú de instalación. Linux y algunos otros clientes Posix Tampoco hay disponible un programa