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[ISSUE #229]when use cgroups v2, controller failed to start #230

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[ISSUE #229]when use cgroups v2, controller failed to start #230

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22 changes: 20 additions & 2 deletions images/controller/alpine/runserver-customize.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -55,12 +55,30 @@ calculate_heap_sizes()
case "`uname`" in
Linux)
system_memory_in_mb=`free -m| sed -n '2p' | awk '{print $2}'`
system_memory_in_mb_in_docker=$(($(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)/1024/1024))
if [ -f /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
system_memory_in_mb_in_docker=$(($(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)/1024/1024))
elif [ -f /sys/fs/cgroup/memory.max ]; then
system_memory_in_mb_in_docker=$(($(cat /sys/fs/cgroup/memory.max)/1024/1024))
else
error_exit "Can not get memory, please check cgroup"
fi
if [ $system_memory_in_mb_in_docker -lt $system_memory_in_mb ];then
system_memory_in_mb=$system_memory_in_mb_in_docker
fi
system_cpu_cores=`egrep -c 'processor([[:space:]]+):.*' /proc/cpuinfo`
system_cpu_cores_in_docker=$(($(cat /sys/fs/cgroup/cpu/cpu.cfs_quota_us)/$(cat /sys/fs/cgroup/cpu/cpu.cfs_period_us)))
if [ -f /sys/fs/cgroup/cpu/cpu.cfs_quota_us ]; then
system_cpu_cores_in_docker=$(($(cat /sys/fs/cgroup/cpu/cpu.cfs_quota_us)/$(cat /sys/fs/cgroup/cpu/cpu.cfs_period_us)))
elif [ -f /sys/fs/cgroup/cpu.max ]; then
QUOTA=$(cut -d ' ' -f 1 /sys/fs/cgroup/cpu.max)
PERIOD=$(cut -d ' ' -f 2 /sys/fs/cgroup/cpu.max)
if [ "$QUOTA" == "max" ]; then # no limit, see https://docs.kernel.org/admin-guide/cgroup-v2.html#cgroup-v2-cpu
system_cpu_cores_in_docker=$system_cpu_cores
else
system_cpu_cores_in_docker=$(($QUOTA/$PERIOD))
fi
else
error_exit "Can not get cpu, please check cgroup"
fi
if [ $system_cpu_cores_in_docker -lt $system_cpu_cores -a $system_cpu_cores_in_docker -ne 0 ];then
system_cpu_cores=$system_cpu_cores_in_docker
fi
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