schedule. 2. Chunkserverl Responsible for data storage l Multi-replicas consistency 3. The client l Provides read and write data interfaces for upper-layer applications l Interacts with MDS chunk.Client 1. CurveBS client provides services by libCurve. At first, external processes such as QEMU, Cinder, and NBD use it to access storage services provided by Curve. The client provids application must be restarted every time the library is updated. To solve this problem, the CurveBS Client has been optimized to decouple the application from libcurve and add a NEBD module to join the

7 API の変更 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 34.1.8 Updating Client and Service . . . . . . . . . . . . . . . . . . . . . . . 210 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 AIDL インターフェース サービスの API を宣言するには、AIDL インターフェースを使用します。 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/

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 PlantUML

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 PlantUML

10 タイミング図 @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 10.17

10 タイミング図 @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 10.17

的なインターフェース ifupdown V:608, I:979 199 設 定::ifupdown ネットワークを接続したり切断したりする標準化 されたツール (Debian 特定) isc-dhcp-client V:217, I:981 2875 設定:: 低レ ベル DHCP クライアント pppoeconf V:0, I:5 186 設定:: ヘル パー PPPoE コネクションの設定ヘルパー files?:” に対して”Yes” を選択します。 ”/etc/exim4/passwd.client” を編集しスマートホストのためのパスワードエントリーを作成します。 $ sudo vim /etc/exim4/passwd.client ... $ cat /etc/exim4/passwd.client ^smtp.*\.hostname\.dom:username@hostname.dom:password テムリソースの消費を最小限とした exim4(8) (optional) 以下のようにして exim4 を起動します。 $ sudo systemctl start exim4 ”/etc/exim4/passwd.client” 中のホスト名はエイリアスであってはいけません。真のホスト名は以下のよう にして確認できます。 $ host smtp.hostname.dom smtp.hostname.dom is an

10 タイミング図 @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 10.17

Rosien による例: @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 PlantUML

database itself. Some users may want to directly edit the database through a third-party database client, and some may use other third- party software such as a part lifecycle management (PLM) tool to