WAS: Tuning no Sistema Operacional para o WebSphere Application Server

= Sistema Operacional =

/etc/security/limits.conf
Adicionar

root       soft     nofile  65535 root       hard     nofile  65535

Referência

/etc/sysctl.conf
Adicionar

net.ipv4.icmp_echo_ignore_broadcasts = 1 net.ipv4.conf.all.rp_filter = 1 fs.inotify.max_user_watches = 65536 net.ipv4.conf.default.promote_secondaries = 1 net.ipv4.conf.all.promote_secondaries = 1 net.ipv4.ip_forward = 0 net.ipv4.conf.default.accept_source_route = 0 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.ipv4.tcp_fin_timeout = 15 net.core.netdev_max_backlog = 3000 net.ipv4.tcp_keepalive_intvl = 15 net.ipv4.tcp_keepalive_probes = 5 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_keepalive_time = 1800 net.ipv4.ip_local_port_range = 1024 65000 net.ipv4.tcp_syncookies=0 net.ipv4.tcp_max_syn_backlog = 200000 net.core.somaxconn = 200000 net.ipv4.tcp_max_tw_buckets = 2000000 net.ipv4.tcp_sack = 0 net.ipv4.tcp_dsack = 0 net.ipv4.tcp_timestamps = 0 vm.min_free_kbytes = 393216 vm.swappiness = 0 net.core.netdev_max_backlog = 200000
 * 1) Disable response to broadcasts.
 * 2) You don't want yourself becoming a Smurf amplifier.
 * 1) enable route verification on all interfaces
 * 1) enable ipV6 forwarding
 * 2) net.ipv6.conf.all.forwarding = 1
 * 3) increase the number of possible inotify(7) watches
 * 1) avoid deleting secondary IPs on deleting the primary IP
 * 1) # Inicio das Configuracoes
 * 1) disable SYN cookies
 * 2) Note: make sure this syncookies=1 item is commented out (it will already exist in this file).
 * 1) increase the TCP backlog to increase simultaneous new connection creation abilities
 * 1) increase and recycle TCP connection blocks for reuse in an optimal manner
 * 1) disable Selective Acknowledgements for 1GBps networking
 * 1) increase kernel memory by doubling the default (check your system first!)
 * 2) the value of this item will be related to the memory in your system
 * 1) manage the TCP network buffer sizings
 * 1) # Fim das Configuracoes

Referências: ,

= Referências =

= Ver também =


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