Администрирование LCG

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Presentation transcript:

Администрирование LCG Игорь Ткачев 2 марта 2006г.

Состав ПО EUDataGrid (EDG) Globus Toolkit 2 Condor-G Virtual Data Toolkit (VDT) gLite Собственные разработки LCG

LCG middleware Workload Management System (WMS) Data Management System (DMS) Information System (IS) Authorisation and Authentification System Accounting System monitoring services installation services

Workload Management System Network server принимает запросы с UI передает input и output между RB и UI регистрирует user proxy для периодического обновления сервисом Proxy Renewal Service Workload Manager (Matchmaker) осуществляет поиск подходящего ресурса для задачи взаимодействует с IS и RLS (LFC) Job Controller вызывается для отправки задачи системе Condor-G Log Monitor разбирает логи Condor и отправляет информацию WM Logging and Bookeeping (LB) собирает и сохраняет в БД информацию о статусе задачи, предоставляемой различными компонентами WMS

Workload Management System Computing Element (CE) – грид-интерфейс к вычислительному кластеру на CE запущен gatekeeper, который принимает задачи от Condor и создает Job Manager (общий интерфейс к batch системе) для каждой задачи. Job Manager используется для запуска и отмены задачи Worker Node (WN) на рабочих узлах не запущено никаких грид-сервисов и грид- окружение минимально Proxy Renewal Service Proxy Server Сохраняет долгоживущие прокси сертификаты.

Data Management System Имена файлов Grid Unique Identifier (GUID) Logical File Name (LFN) Storage URL (SURL) Transport URL (TURL)

Data Management System File Catalog содержит связь между логическим и физическим именами Replica Location Service (RLS) Local Replica Catalog (LRC) Replica Metadata Catalog (RMC) Local File Catalog (LFC) Lfcdaemon Data Location Interface (DLI)

Data Management System Storage Element Classic DPM dCache

Information System Monitoring and Discovery Service based on GLUE schema and LDAP

Information System Relational Grid Monitoring Architecture (R- GMA) виртуальная база данных

Installation Services LCFGng server Manual installation YAIM Quattor

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