feat(sdui,rpc): active processes and mutations monitoring (SYSTEM.processes & SYSTEM.mutations) - #37
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…cesses & SYSTEM.mutations) with emergency kill actions
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Реализовано для Issue #19 [Stage 5/6]:
table): добавлено действиеtable.active_queriesдля отслеживания текущих запросов к выбранной таблице вSYSTEM.processes, а такжеtable.kill_mutationsдля аварийной остановки зависших мутаций на таблице.database): добавлены командыdb.kill_mutations(KILL MUTATION WHERE database = '...') иdb.kill_queries(KILL QUERY WHERE current_database = '...') с защитой подтверждением (requires_confirmation: true, danger: true).server,root_databases): добавлены глобальные команды интроспекцииserver.active_mutations,server.active_queriesиserver.kill_long_queries(завершение запросов длительностью > 60 секунд).db.killMutation(handle_kill_mutation) для прицельной отмены конкретной мутации по еёmutationId.build_non_tabular_resultдля точной отчётности по командамKILL MUTATION/KILL QUERY, возвращающим операциюkillи понятное сообщение в UI.test_handle_kill_mutation,test_kill_status_messages,test_dispatch_kill_mutationиtest_server_and_process_monitoring_actions.-D warnings).