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Switch to zram for overlay

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Further mitigate unevictable memory penalty
for written files in stateless.
This commit is contained in:
Jarrod Johnson 2021-06-11 16:16:17 -04:00
parent 8edd2a28e4
commit f565030087
1 changed files with 5 additions and 1 deletions
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6
confluent_osdeploy/diskless/initramfs/usr/lib/dracut/hooks/cmdline/10-confluentdiskless.sh
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@ -192,7 +192,11 @@ confluent_urls="$confluent_urls https://$confluent_mgr/confluent-public/os/$conf
mkdir -p /mnt/remoteimg /mnt/remote /mnt/overlay
/opt/confluent/bin/urlmount $confluent_urls /mnt/remoteimg
mount -o loop,ro /mnt/remoteimg/*.sfs /mnt/remote
mount -t tmpfs overlay /mnt/overlay
#mount -t tmpfs overlay /mnt/overlay
modprobe zram
echo 16G > /sys/block/zram0/disksize
mkfs.xfs /dev/zram0
mount /dev/zram0 /mnt/overlay
mkdir -p /mnt/overlay/upper /mnt/overlay/work
mount -t overlay -o upperdir=/mnt/overlay/upper,workdir=/mnt/overlay/work,lowerdir=/mnt/remote disklessroot /sysroot
mkdir -p /sysroot/etc/ssh