OCI’s memory is only 1GB and Swapping is needed. Followings is example of configuration 2GB swapping.

sudo free -m

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

sudo vi /etc/fstab

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/swapfile swap swap defaults 0 0
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sudo reboot
sudo free -m