Recommended kernel parameters
Changes must be made to the file /etc/sysctl.conf:
kernel.shmmax = 2473822720 kernel.shmall = 4097152000 net.core.rmem_default = 262144 net.core.rmem_max = 8388608 net.core.wmem_default = 262144 net.core.wmem_max = 8388608 net.ipv4.tcp_syncookies = 1 net.ipv4tcp_tw_recycle = 0 net.ipv4tcp_tw_reuse = 0 net.ipv4.tcp_keepalive_time = 10 net.ipv4.tcp_fin_timeout = 5
Then execute a command to apply the changes:
sysctl -p
Setting OS limits for a large number of connections
For Spectr to serve a large number of concurrent users, it is necessary to increase the limit on the number of descriptors in Linux. You can do that in a file /etc/security/limits.confwhere you need to prescribe:
* soft nofile 16384 * hard nofile 16384
