Блок лога слишком мал по смещению @1 в файле лога @2. -239 335544691 cache_too_small Insufficient memory to allocate page buffer cache. Недостаточно памяти для размещения страниц буфера кэш. -239 335544693 335544566 start_cm_for_wal WAL defined; Cache Manager must be started first. Обнаружено WAL; Менеджер КЭШа должен стартовать первым. -260 335544690 cache_redef Cache redefined. Обработка ошибок, коды перевод сообщения. -599 335544625 node_name_err A node name is not permitted in a secondary, shadow, cache or log file name. Имя узла не допускается в именах вторичного, теневого, КЭШа или в имени файла

сек. std::unordered_map 44.758 сек. Бенчмарки 28 28 perf stat -e cache-misses:u ./integer_hash_tables_and_hashes Хеш-таблица Cache misses ClickHouse HashMap 329,664,616 Google DenseMap 383,350,820

@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 +75 is recv 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 Справочное руководство по языку PlantUML (1.2020.23) 147 / 305

@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 +75 is recv 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 Справочное руководство по языку PlantUML (1.2020.22) 136 / 293

PlantUML (1.2021.2) 184 / 387 10.17 Digital Example 10 TIMING DIAGRAM concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv 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 Digital Example @startuml scale 5 as 150 pixels clock clk

PlantUML (1.2021.1) 182 / 382 10.17 Digital Example 10 TIMING DIAGRAM concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv 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 Digital Example @startuml scale 5 as 150 pixels clock clk

PlantUML (1.2021.2) 195 / 405 10.17 Digital Example 10 TIMING DIAGRAM concise "Response freshness" as Cache Server is idle Client is idle @Client 0 is send Client -> Server@+25 : GET +25 is await +75 is recv 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 Digital Example @startuml scale 5 as 150 pixels clock clk

@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 +75 is recv 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 Справочное руководство по языку PlantUML (1.2023.11) 259 / 553

Firebird 2.5 и не являются ключевыми словами: AUTODDL BASE_NAME BASED BASENAME BLOBEDIT BUFFER CACHE CHECK_POINT_LEN 23 Руководство по языку SQL CHECK_POINT_LENGTH COMPILETIME CONTINUE DB_KEY DEBUG