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Move small memory instructions to advanced installation

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bkniffler
2015-07-31 18:18:37 +02:00
parent 003ab07ff4
commit 3a0a873079
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docs/advanced-installation.md
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@@ -57,3 +57,24 @@ If you are using the vagrant installation, you can use the following command to
$ cat ~/.ssh/id_rsa.pub | make vagrant-acl-add
That's it!
### VMs with less than 1GB of memory
Having less than 1GB of system memory available for dokku and its containers, for example Digital Ocean's small 512MB machines, might result in unexpected errors, such as **! [remote rejected] master -> master (pre-receive hook declined)** during installation of NPM dependencies (https://github.com/npm/npm/issues/3867).
To work around this issue, it might suffice to augment the linux swap file size to a maximum of twice the physical memory size.
To resize the swap file of a 512MB machine to 1GB, follow these steps while in SSH within your machine:
```shell
cd /var
touch swap.img
chmod 600 swap.img
dd if=/dev/zero of=/var/swap.img bs=1024k count=1000
mkswap /var/swap.img
swapon /var/swap.img
free
echo "/var/swap.img none swap sw 0 0" >> /etc/fstab
```
Reference: https://www.digitalocean.com/community/tutorials/how-to-configure-virtual-memory-swap-file-on-a-vps