Introduccion al cluster
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![Page 1: Introduccion al cluster](https://reader034.fdocuments.mx/reader034/viewer/2022052600/557bd84ed8b42a8b3e8b4b0d/html5/thumbnails/1.jpg)
Lo bueno, lo malo y lo geek de tener tu propio cluster
José Miguel Parrella(bureado)
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¿qué es un cluster?
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dos o más computadoras
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unidas para resolver un problema
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miembros del cluster
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sistema (informático)
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redes
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ipv4
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ipv6
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aplicaciones
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servicios Web
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bases de datos
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procesos de negocios
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almacenamiento
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discos compartidos
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SAN, NAS
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computador
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arquitectura
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CPU
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Memoria RAM
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procesamiento
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cómputo
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Red Aplicación
Almacenamiento Cómputo
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ventajas
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High AvailabilityAlta Disponibilidad
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menos complejo
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más disponible
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tsubame
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japón
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linux
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windows
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#5
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«five nines»
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99.999%
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5.26 minutos/año
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enemigo
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Single Point of FailurePunto Único de Falla
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un solo ISP
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un solo arreglo de discos
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una sola base de datos
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una sola región geográfica
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High Performance ComputingAlto Desempeño
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beowulf
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windows hpc
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código optimizado
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mpi
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message passing interface
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Perl
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Parallell::MPI
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codeplex
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13
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open source
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k
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simulaciones físicas
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túneles de viento
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predicción del clima
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simulación de la corteza cerebral
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Load BalancingBalanceo de Carga
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tiempo de vida uniforme
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reutilizar hardware antiguo
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tiempos de respuesta
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5 minutos menos
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$240M / año
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paralelización
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no todo es paralelizable
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select * from table order by id
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insert into table (id, msg)values (1, ‘hey’)
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comunicación
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velocidad de la luz
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cluster
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dispositivo
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convierte
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problemas de cómputo
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problemas de comunicación
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Shared StorageAlmacenamiento Compartido
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DAS = 1.33$/GBDirect-Attached Storage
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SAN = 1.29$/GBStorage Area Network
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NFS, Samba et al.
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SCSI
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iSCSI
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ATA over Ethernet
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FibreChannel
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concurrencia
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metadata
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GFSGlobal File System
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CSVCluster Shared Volumes
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DRBDDistributed, Replicated Block Device
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metadata distribuida
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GlusterFS
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problemas
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participar en el cluster
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STONITHShoot The Other Node In The Head
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don’t panic
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Shared Nothing
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clusters oportunistas
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SETI
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BOINC
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<demo>
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Cluster Interoperable, Altamente Disponible con Balanceo de Carga• router Wi-Fi (10.11.13.1)• servidor linux 1 (10.11.13.108)• servidor linux 2 (10.11.13.106)• teléfono linux 4 (10.11.13.109)• IP virtual del servicio (10.11.13.10)• Observaciones• sin almacenamiento compartido• sin stonith• usando máquinas virtuales en Hyper-V• metodología Ultramonkey• pueden ingresar servidores reales Windows
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identifica los puntos únicos de falla de mi demostración