View source for 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 <ref>[http://www-01.ibm.com/support/knowledgecenter/SSKTXQ_9.0.0/admin/config/config_chat_ldap_java_linux_open.html Increasing the number of open files on a Sametime server running on Linux]</ref>

== /etc/sysctl.conf ==

Adicionar

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

Referências: <ref>[http://www-01.ibm.com/support/knowledgecenter/SSKTXQ_9.0.0/admin/config/config_chat_ldap_java_linux_open.html?lang=en ITuning IBM System x Servers for Performance]</ref> , <ref>[http://www-10.lotus.com/ldd/stwiki.nsf/dx/Sametime_8.5.2_Tuning_Guide IBM Sametime wiki : Tuning : Sametime 8.5.2 Tuning Guide]</ref>

= Referências =


<references/>

= Ver também =

* [[WebSphere Application Server|  Mais Artigos sobre WebSphere Application Server]]
* [[WebSphere Portal Server|  Mais Artigos sobre WebSphere Portal Server]]

[[Category: WebSphere Application Server]]
[[Category: WAS]]