Se recomienda la reducción del swapping en todos los nodos, así como la deshabilitación del protocolo IP versión 6.
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# /etc/sysctl.conf - Configuration file for setting system variables # See /etc/sysctl.d/ for additional system variables. # See sysctl.conf (5) for information. # #kernel.domainname = example.com # Uncomment the following to stop low-level messages on console #kernel.printk = 3 4 1 3 ######################################################### # Configuration for hadoop cluster deployment # To help detect unreachable nodes with less latency net.ipv4.tcp_retries2=5 # To reduce swapping vm.swappiness=1 # To disable IPv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6: = 1 net.ipv6.conf.lo.disable_ipv6= 1 |