Proxmox hardware node and openvz container increase shared memory SHMMAX SHMMNI limits

Example uses CT 118 (OpenVZ container ID 118) for example.

Login to your hardware node

vzctl stop 118

vzctl set 118 --kmemsize unlimited --save

vzctl set 118 --lockedpages unlimited --save

vzctl set 118 --privvmpages unlimited --save

vzctl set 118 --shmpages unlimited --save

vzctl set 118 --numproc unlimited --save

vzctl set 118 --numtcpsock unlimited --save

vzctl set 118 --numflock unlimited --save

vzctl set 118 --numpty unlimited --save

vzctl set 118 --numsiginfo unlimited --save

vzctl set 118 --tcpsndbuf unlimited --save

vzctl set 118 --tcprcvbuf unlimited --save

vzctl set 118 --othersockbuf unlimited --save

vzctl set 118 --dgramrcvbuf unlimited --save

vzctl set 118 --numothersock unlimited --save

vzctl set 118 --dcachesize unlimited --save

vzctl set 118 --numfile unlimited --save

vzctl set 118 --numiptent unlimited --save

(for elasticsearch... set memlock to unlimited by:   vzctl set <CT_NUM> --memlock unlimited --save )

nano /etc/sysctl.conf

kernel.shmall = 2097152

kernel.shmmax = 536870912

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 65536

net.ipv4.ip_local_port_range = 1024 65000

net.core.rmem_default=262144

net.core.wmem_default=262144

net.core.rmem_max=262144

net.core.wmem_max=262144

/sbin/sysctl -p

vzctl start 118

vzctl enter 118

nano /etc/sysctl.conf

kernel.shmall = 2097152

kernel.shmmax = 536870912

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

/sbin/sysctl -p

exit

vzctl stop 118

vzctl start 118