-- /etc/sysctl.conf
kernel.core_uses_pid = 1
net.core.netdev_max_backlog = 262144
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.somaxconn = 32767
net.core.wmem_default = 8388608
net.core.wmem_max = 16777216
net.ipv4.tcp_max_syn_backlog = 262144
net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_sack = 1
net.ipv4.ip_local_reserved_ports = 5050,5258,5288,6666,6268
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_wmem = 4096 16384 4194304
vm.vfs_cache_pressure = 1024
vm.swappiness = 1
GBase 8a MPP Cluster 最佳实践
6 附录
文档版本(2022-02-11)
南大通用数据技术股份有限公司
182
vm.overcommit_memory = 0
vm.zone_reclaim_mode = 0
vm.min_free_kbytes = 101680
-- /etc/security/limits.conf
gbase
soft
nofile
655360
gbase
hard
nofile
655360
-- /etc/security/limits.d/*-nproc.conf
#*
soft
nproc
4096
root
soft
nproc
unlimited