mo server

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804 points jryio | 1 comments | 21 Oct 25 20:28 UTC | HN request time: 0s | source

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speedgoose ◴[21 Oct 25 21:12 UTC] No.45661785[source]▶

Looking at the htop screenshot, I notice the lack of swap. You may want to enable earlyoom, so your whole server doesn't go down when a service goes bananas. The Linux Kernel OOM killer is often a bit too late to trigger.

You can also enable zram to compress ram, so you can over-provision like the pros'. A lot of long-running software leaks memory that compresses pretty well.

Here is how I do it on my Hetzner bare-metal servers using Ansible: https://gist.github.com/fungiboletus/794a265cc186e79cd5eb2fe... It also works on VMs.

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awesome_dude ◴[21 Oct 25 22:38 UTC] No.45662628[source]▶

>>45661785 #

How do you get swap on a VPS?

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justsomehnguy ◴[21 Oct 25 23:32 UTC] No.45663111[source]▶

>>45662628 #

Search "linux enable swap in a file"

    To enable a swap file in Linux, first create the swap file using a command like sudo dd if=/dev/zero of=/swapfile bs=1G count=1 for a 1GB file. Then, set it up with sudo mkswap /swapfile and activate it using sudo swapon /swapfile. To make it permanent, add /swapfile swap swap defaults 0 0 to your /etc/fstab file.

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awesome_dude ◴[21 Oct 25 23:33 UTC] No.45663117[source]▶

>>45663111 #

Strongly suggest you try doing that on a VPS, then report back

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justsomehnguy ◴[21 Oct 25 23:51 UTC] No.45663268[source]▶

>>45663117 #

https://news.ycombinator.com/item?id=45007821

And that was like... two years ago? 1GB of RAM and actually ~700MB usable before I found the proper magik incantations to really disable kdump.

Also have used 1GB machines for literally years.

Strongly suggest you shouldn't strongly suggest.

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