Cluster Beowulf

Configuração do Cluster Beowulf no Debian 7.

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Por: diocelio larsen em 04/08/2016


Instalando NTP



Instalando NTP (nós e servidor):

# aptitude install ntp

Substituir o conteúdo dos arquivos ntp.conf do servidor e do nós com os exemplos abaixo (arrumar o número do IP do servidor):

# nano /etc/ntp.conf

Exemplo ntp.conf (nó):

#escrito por diocelio larsen 1.0
# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
server 192.168.1.20
driftfile /var/lib/ntp/ntp.drift
authenticate no

# Enable this if you want statistics to be logged.
#statsdir /var/log/ntpstats/

statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable

# You do need to talk to an NTP server or two (or three).
#server ntp.your-provider.example

# pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
# pick a different set every time it starts up.  Please consider joining the
# pool: http://www.pool.ntp.org/join.html
#server 0.debian.pool.ntp.org iburst
#server 1.debian.pool.ntp.org iburst
#server 2.debian.pool.ntp.org iburst
#server 3.debian.pool.ntp.org iburst

# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
# details.  The web page http://support.ntp.org/bin/view/Support/AccessRestrictions
# might also be helpful.
#
# Note that "restrict" applies to both servers and clients, so a configuration
# that might be intended to block requests from certain clients could also end
# up blocking replies from your own upstream servers.

# By default, exchange time with everybody, but don't allow configuration.
restrict -4 default kod notrap nomodify nopeer noquery
restrict -6 default kod notrap nomodify nopeer noquery

# Local users may interrogate the ntp server more closely.
restrict 127.0.0.1
restrict ::1

# Clients from this (example!) subnet have unlimited access, but only if
# cryptographically authenticated.
#restrict 192.168.123.0 mask 255.255.255.0 notrust
"/etc/ntp.conf" 56L, 2026C gravado(s)

# If you want to provide time to your local subnet, change the next line.
# (Again, the address is an example only.)
#broadcast 192.168.123.255

# If you want to listen to time broadcasts on your local subnet, de-comment the
# next lines.  Please do this only if you trust everybody on the network!
#disable auth
#broadcastclient

ntp.conf(servidor)
# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
server 127.0.0.1 prefer
fudge 127.0.0.1 stratum 0
driftfile /var/lib/ntp/ntp.drift
authenticate no

# Enable this if you want statistics to be logged.
#statsdir /var/log/ntpstats/

statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable

# You do need to talk to an NTP server or two (or three).
#server ntp.your-provider.example

# pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
# pick a different set every time it starts up.  Please consider joining the
# pool: http://www.pool.ntp.org/join.html
server 0.debian.pool.ntp.org iburst
server 1.debian.pool.ntp.org iburst
server 2.debian.pool.ntp.org iburst
server 3.debian.pool.ntp.org iburst

# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
# details.  The web page http://support.ntp.org/bin/view/Support/AccessRestrictions
# might also be helpful.
#
# Note that "restrict" applies to both servers and clients, so a configuration
# that might be intended to block requests from certain clients could also end
# up blocking replies from your own upstream servers.

# By default, exchange time with everybody, but don't allow configuration.
restrict -4 default kod notrap nomodify nopeer noquery
restrict -6 default kod notrap nomodify nopeer noquery

# Local users may interrogate the ntp server more closely.
restrict 127.0.0.1
restrict ::1

# Clients from this (example!) subnet have unlimited access, but only if
# cryptographically authenticated.
#restrict 192.168.123.0 mask 255.255.255.0 notrust

# If you want to provide time to your local subnet, change the next line.
# (Again, the address is an example only.)
#broadcast 192.168.123.255

# If you want to listen to time broadcasts on your local subnet, de-comment the
# next lines.  Please do this only if you trust everybody on the network!
#disable auth
#broadcastclient

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Páginas do artigo
   1. Instalando pacotes
   2. Configurando hosts
   3. Criando arquivos
   4. Instalando NTP
   5. SSH
   6. PVSF2
   7. Executando PVFS2
   8. NFS
   9. MPI
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Comentários
[1] Comentário enviado por Buckminster em 05/08/2016 - 15:21h

O PVFS2 agora chama-se OrangeFS e está na versão 2.9 (http://docs.orangefs.com/home/index.htm), e a MPICH está na versão 3.2 (https://www.mpich.org/downloads/), mas no mais, legal teu artigo.

[2] Comentário enviado por iagolira em 14/08/2016 - 16:16h

Muito bacana!! :)
Também tem um script para automatizar todo o processo de criação do cluster beowulf, que foi usado por mim: https://www.vivaolinux.com.br/script/Cluster-beowulf/

Nome: Francisco Iago Lira Passos
Curso: Mestrando em Física


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