How to prune the node?

[wyrmss]

Hello, this text is translated from Spanish.
I am trying on a raspberry pi to make the private node work --prune-blockchain --sync-pruned-blocks, and I get an error when connecting the node.
I have edited the moneroPrivate.sh file putting --prune-blockchain --sync-pruned-blocks like this:
`#!/bin/bash

#Import Start Flag Values:
#Establish Device IP
. /home/pinodexmr/variables/deviceIp.sh
#Import RPC Pay Port Number
. /home/pinodexmr/variables/monero-rpcpay-port.sh
#Import restricted Port Number
. /home/pinodexmr/variables/monero-port.sh
#Import IN-PEERS (connections) Limit
. /home/pinodexmr/variables/in-peers.sh
#Import OUT-PEERS (connections) Limit
. /home/pinodexmr/variables/out-peers.sh
#Import Data Limit Up
. /home/pinodexmr/variables/limit-rate-up.sh
#Import Data Limit Down
. /home/pinodexmr/variables/limit-rate-down.sh
#Import RPC username
. /home/pinodexmr/variables/RPCu.sh
#Import RPC password
. /home/pinodexmr/variables/RPCp.sh
#Import Credits
. /home/pinodexmr/variables/credits.sh
#Import Difficulty
. /home/pinodexmr/variables/difficulty.sh
#RPC payment address
. /home/pinodexmr/variables/payment-address.sh

#Output the currently running state
echo "#!/bin/sh
BOOT_STATUS=6" > /home/pinodexmr/bootstatus.sh
#Start Monerod
cd /home/pinodexmr/monero/build/release/bin/
./monerod --rpc-bind-ip=$DEVICE_IP --rpc-bind-port=$MONERO_PORT --zmq-pub tcp://$DEVICE_IP:18083 --rpc-restricted-bind-port=$MONERO_RPCPAY_PORT --confirm-external-bind --rpc-payment-allow-free-loopback --rpc-ssl disabled --in-peers=$IN_PEERS --out-peers=$OUT_PEERS --limit-rate-up=$LIMIT_RATE_UP --limit-rate-down=$LIMIT_RATE_DOWN --max-log-file-size=10485760 --log-level=1 --max-log-files=1 --pidfile /home/pinodexmr/monero/build/release/bin/monerod.pid --rpc-payment-address=$PAYMENT_ADDRESS --rpc-payment-credits=$CREDITS --rpc-payment-difficulty=$DIFFICULTY --public-node --enable-dns-blocklist --detach --prune-blockchain --sync-pruned-blocks`

My SSD hard drive is 240G and it practically fills up when the download finishes, pruning would solve it.
thank you.

[shermand100]

Hi, yes pruning would be the answer to avoid the Blockchain growth exceeding 240GB, however the pruning function is designed to be toggled on for first sync.

In your example, you already have the Blockchain on your device in a directory called 'lmdb', once you turn on pruning Monero creates a new directory called 'lmdb_pruned'.

Because your device trusts the full 'lmdb', because you verified it, Monero will use that data first to create the pruned Blockchain, so actually storage will be higher as you will have both sets of data. Once pruning is complete you can delete 'lmdb' and just have 'lmdb_pruned'.
It works in this way to avoid downloading the entire Blockchain again as you already have the data. It is less network intensive, but CPU intensive instead.

I doubt you have the storage space to create the pruned Blockchain from the full Blockchain in the method described above. So you have two options -

The node has probably stopped because you have run out of storage ( you can check by typing df -h at the terminal)

1. • I started writing how to solve the issue but when looking at how pruning now behaves it seems to have changed slightly over recent years. Our --prune-blockchain method seems to keep the current size of Blockchain file, but marks empty space within it so it will not occupy any additional space despite growing internally.
     I'm currently away on holiday so not at my computer, but if you can let me know if your device if full with the 'df -h' command I can probably give a few tips to get you started again.

[wyrmss]

Hello, the disk is not complete yet nor has the chain been downloaded, I am going to start over with a clean installation of pinodexmr, that is why I was asking how to do it, I would like to have a pruned blockchain the same as I have in monero-gui.
What command to put in moneroPrivate.sh or somewhere else.
My intention is to leave a node and p2pool on the raspberry.
Thanks again.

EDIT:

In the end I managed to connect and start the download, I hope it is pruned with these parameters in the moneroPrivate.sh file:

#!/bin/bash

#Import Start Flag Values:
#Establish Device IP
. /home/pinodexmr/variables/deviceIp.sh
#Import Port Number
. /home/pinodexmr/variables/monero-port.sh
#Import IN-PEERS (connections) Limit
. /home/pinodexmr/variables/in-peers.sh
#Import OUT-PEERS (connections) Limit
. /home/pinodexmr/variables/out-peers.sh
#Import Data Limit Up
. /home/pinodexmr/variables/limit-rate-up.sh
#Import Data Limit Down
. /home/pinodexmr/variables/limit-rate-down.sh
#Import RPC username
. /home/pinodexmr/variables/RPCu.sh
#Import RPC password
. /home/pinodexmr/variables/RPCp.sh

#Update power cycle reboot state
echo "#!/bin/sh
BOOT_STATUS=3" > /home/pinodexmr/bootstatus.sh
#Start Monerod
cd /home/pinodexmr/monero/build/release/bin/
./monerod --prune-blockchain --sync-pruned-blocks --rpc-bind-ip=$DEVICE_IP --zmq-pub tcp://$DEVICE_IP:18083 --rpc-bind-port=$MONERO_PORT --confirm-external-bind --rpc-login=$RPCu:$RPCp --rpc-ssl disabled --in-peers=$IN_PEERS --out-peers=$OUT_PEERS --limit-rate-up=$LIMIT_RATE_UP --limit-rate-down=$LIMIT_RATE_DOWN --max-log-file-size=10485760 --log-level=1 --max-log-files=1 --pidfile /home/pinodexmr/monero/build/release/bin/monerod.pid --enable-dns-blocklist --detach

It would be a good option to give the possibility at the beginning of the download if you want a pruned or complete blockchain.

Many thanks for everything.

[wyrmss]

Hello, after fixing the private node, I have the problem that p2pool does not start, it tells me: No address set.
I put my wallet in the text box and entered, but nothing, in the mining-address.sh file I entered my wallet and nothing, in the p2pool.sh file I entered my wallet, and nothing, it keeps saying: No address set .
In systemctl I get this:

<● moneroPrivate.service - Monero Node
Loaded: loaded (;;file://PiNodeXMR/etc/systemd/system/moneroPrivate.service/etc/systemd/system/moneroPrivate.service;;; enabled; preset: enabled)
Active: active (running) since Wed 2024-10-16 18:26:46 CEST; 12min ago
Process: 1078 ExecStart=/bin/bash moneroPrivate.sh (code=exited, status=0/SUCCESS)
Main PID: 1084 (monerod)
Tasks: 29 (limit: 8738)
CPU: 39.795s
CGroup: /system.slice/moneroPrivate.service
└─1084 ./monerod --rpc-bind-ip=192.168.18.43 --zmq-pub tcp://192.168.18.43:18083 --rpc-bind-port=18081 --confirm-external-bind --rpc-login=xxxxx:xxxxxx --rpc-ssl disabled ->
Oct 16 18:26:45 PiNodeXMR bash[1082]: 2024-10-16 16:26:45.993 I Monero 'Fluorine Fermi' (v0.18.3.4-83dd5152e)
Oct 16 18:26:45 PiNodeXMR bash[1082]: 2024-10-16 16:26:45.993 I Moving from main() into the daemonize now.
Oct 16 18:26:45 PiNodeXMR bash[1082]: Forking to background...
pinodexmr@PiNodeXMR:~ $ systemctl status p2pool.service
● p2pool.service - P2Pool
Loaded: loaded (;;file://PiNodeXMR/etc/systemd/system/p2pool.service/etc/systemd/system/p2pool.service;;; enabled; preset: enabled)
Active: activating (auto-restart) since Wed 2024-10-16 18:38:50 CEST; 19s ago
Process: 2761 ExecStart=/bin/bash p2pool.sh (code=exited, status=0/SUCCESS)
Main PID: 2761 (code=exited, status=0/SUCCESS)>

Everything is going well at the moment, but p2pool doesn't want to accept my wallet.
Thank you very much for all your collaboration.