Node disk configuration

Support
1

Hello,

after succesfully compiling the api and node on the raspberri pi4, I’m the happy owner of a raspberry pi safe node. ( offline now, waiting for v4 )

The pi4 here has limited disk space : 32 Go as a sd card. My /home is on the sdcard.

My understanding is that the node files are stored in ~/.safe , so the node ends up with what is left on the sd card. ( cargo eats a lot of space for compilation, btw )

So, my question is : how would I specify a directory on an exernal drive ? I have a 500 gb usb3 disk that can stay mounted, but I don’t find a config file to specify where the node files go.
Or maybe simply tricking with a symlink ?

Thank you !

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If you run sn_node directly, you can specify --root-dir parameter.
Do not know if it possible to do so with safe command.

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We yet don’t have flags exposed in CLI so this can be achieved easily, moving all storage to a different place, using the components individually it’s possible I think but tedious at the moment I’d say.

I think your best option for now is to just mount your 500 gb usb3 disk on ~/.safe location ?

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That sounds easy and effective

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Hi @nice

I had a similar issue with my ubuntu VM. A symlink worked fine if you’d rather do that than hard mount the filesystem onto ~/.safe. In my case, I wanted the additional space to be available to other users, so it worked better to create a directory on the external disk and link to it than hard mount.

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hi @futuretrack ! thank you for the input.
I like it , indeed, as it would permit to leave other parts of the dd available for other stuff.
I suppose that will be the solution for me.

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my start scripts looks like this:

  • 10MiB max capacity
  • the bootstrap node list might (will?) need an update to work with the next test net
  • only log level info (debug is the default if started from the safe executable, right?)
  • logs to stdout instead of a file (you could dump it into a file by adding >> node_logs to the command or calling the start script with it)
#!/usr/bin/env bash

RUST_LOG=info ./sn_node --root-dir /data-fast/sn_node --max-capacity 10485760 -h '["138.68.130.204:50087","138.68.135.139:49440","138.68.146.170:32859","138.68.167.124:43149","138.68.180.216:49021","138.68.182.161:34595","139.59.162.138:52910","139.59.177.49:42192","139.59.184.250:50196","165.227.224.102:34793","165.227.224.69:34758","165.227.225.237:60110","165.227.226.230:33552","165.227.229.100:49408","165.227.229.103:59359","165.227.229.104:33663","165.227.229.129:57822","165.227.229.131:53334","165.227.229.142:60960","165.227.229.148:47735","165.227.229.150:33874","165.227.229.33:12000","165.227.229.55:32936","165.227.229.57:45221","165.227.229.59:47925","165.227.229.70:48326","165.227.229.71:54735","165.227.229.96:46868","165.227.232.158:50965","178.62.10.198:51741","178.62.122.173:58245","178.62.32.210:39347","178.62.74.247:51223","188.166.172.140:37214","188.166.174.88:54107","188.166.175.92:33968","46.101.17.63:46664","46.101.61.67:59088","46.101.72.129:37483"]'
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Small tip: instead of passing this long list of socket addresses you could use:

-h $(tr -d ' \t\n' < ~/.safe/node/node_connection_info.config)

where .safe/node/node_connection_info.config is the file downloaded from https://sn-node.s3.eu-west-2.amazonaws.com/config/node_connection_info.config and normally used by clients.

EDIT: Corrected tr command:

  • can be launched from anywhere, not just the home directory
  • filter out spaces and tabs in addition to \n
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I just found out this possibility:

--max-capacity $(numfmt --from auto 10Mi)

It is longer but clearer and less error prone. This is even more obvious with bigger sizes:

$ numfmt --from auto 2G
2000000000

Who can check visually that the number of digits is right? In any case not me!

In Rust we can use 2_000_000_000 syntax to make it readable, but we cannot use it as a program argument.

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I just noticed that the Gnome terminal can help. Highlighting a number and right-clicking shows you a calculation.

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