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Increase RAM of openvz container from command line
I tried the following commands from the node to increase the RAM of 110 container from 6GB to 8GB, but it does not seem to work. If I do a free -m it still shows 6GB.
vzctl set 110 --vmguarpages 8G --save
vzctl set 110 --oomguarpages 8G --save
vzctl set 110 -- privvmpages 8G --save
It says it successfully wrote to the configuration file, and the 110.conf file is as below (some details removed for privacy):
KMEMSIZE="2147483646"
LOCKEDPAGES="5000"
PRIVVMPAGES="2097152"
SHMPAGES="1572864"
NUMPROC="5000"
PHYSPAGES="0:2147483647"
VMGUARPAGES="2097152"
OOMGUARPAGES="2097152"
NUMTCPSOCK="40000"
NUMFLOCK="5000"
NUMPTY="2500"
NUMSIGINFO="5000"
TCPSNDBUF="1288489984:1452329984"
TCPRCVBUF="1288489984:1452329984"
OTHERSOCKBUF="1288489984:1452329984"
DGRAMRCVBUF="1288489984:1452329984"
NUMOTHERSOCK="40000"
DCACHESIZE="46080000"
NUMFILE="120000"
AVNUMPROC="180:180"
NUMIPTENT="5000"
# Disk quota parameters (in form of softlimit:hardlimit)
DISKSPACE="256000000:256000000"
DISKINODES="128000000:128000000"
QUOTATIME="0"
# CPU fair scheduler parameter
CPUUNITS="1000"
VE_ROOT="/vz/root/$VEID"
VE_PRIVATE="/vz/private/110"
OSTEMPLATE="centos-5-x86_64"
ORIGIN_SAMPLE="basic"
IP_ADDRESS="REMOVED-REMOVED"
QUOTAUGIDLIMIT="10000"
HOSTNAME="REMOVED"
ONBOOT="yes"
CPULIMIT="800"
MEMINFO="pages:1572864"
CPUS="8"
From the above I can see that the MEMINFO value of pages:1572864 results to 6GB. Do I have to change that too? If I do vzctl set 110 --meminfo pages:2097152, then it shows as 8GB in my container, but now am lost if there's been a real change or not.
Comments
Tried physpages?
Tried setting physpages, it says I dont have vswap.
/usr/sbin/vzctl set $ctid --vmguarpages {$ram}M --oomguarpages {$ram}M --privvmpages {$ram}M:{$burst}M --swap {$swap}M --save;
This is what I'm using
Relaunch the container and vzw