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Setup an Ethereum archive node using Reth on the Orange Pi 5

#ethereum #tutorial #linux #arm

In this post we will prepare a custom version of Armbian for the Orange Pi 5, prepare the board's storage and run the Reth Ethereum execution client in archive mode.

Context

As the newest Ethereum execution client Reth was released, we wanted to share the instructions required to setup your own archive node at home using the Orange Pi 5 board.

We spent some time figuring out the solution to an issue which prevented the node from running correctly due to the way the Linux distributions for this specific board were configured.

For those of you who are curious, the issue itself is documented here.

In the next sections, we describe what is the required hardware to get the node ready, as well as what change will be made to Linux and how to deploy the archive node.

Prepare the hardware

To be able to recompile Armbian (the why is explained in the next section) we need to follow the official documentation requirements.
On our side, we used a Thinkpad running Pop OS.

The modified version of the OS needs to be written to an SD card.
On our side, we used a SanDisk Extreme Pro microSDXC 128 GB.

We also need to connect the board to the local network via the ethernet port and to the power using its USB-C port.

In order to store the data of the archive node, we need external SSDs.
On our side, and despite the fact that this is probably not the most optimised solution, we used two NVMe with 2 TB of storage each, connected to the board using a USB Hub.

Prepare the OS

As briefly mentioned in the first section, we faced an issue the first time we tried to setup the archive node.
MDBX could not set the database size due to the page size being set to 4 KB, restricting the address space to be 512 GB maximum.

So the next question is: How can we change this page size to be bigger ? 🤔
And the answer is: When compiling the Kernel. 😶

Thankfully, Armbian provides an excellent and easy-to-use framework to build the distribution and customise the Kernel features - including the page size.

Let's get started:

  • On the host machine, plug the micro SD card. Make sure that it is accessible by running the following command:


lsblk
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You should see something like this:



NAME            MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
sda               8:0    1 119.1G  0 disk  
└─sda1            8:1    1 119.1G  0 part  /media/xpanoramix/3137-6438
...
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  • Then, clone the Armbian build framework:


git clone https://github.com/armbian/build
cd build
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  • Finally, compile the Linux Kernel for the Orange Pi 5 and flash it to the micro SD card:


./compile.sh \
BOARD=orangepi5 \
BUILD_MINIMAL=yes \
BUILD_DESKTOP=no \
KERNEL_CONFIGURE=yes \
CARD_DEVICE="/dev/sdX" # Replace "sdX" with the one for your micro SD card !
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Follow the instructions given in the terminal.
Then, you should see the following screen:

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Select the only one and let the process continue. After a while, you should see the following screen appear. Select the "jammy" option:

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Let the process continue again, until the following screen appears. Scroll down to "Kernel Features", press Enter and change the page size from "4 KB" to "64 KB".

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Save the configuration and load it.

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Finally, click on the "Exit" button in the bottom-left and "yes" on the pop-up window that appears right after.

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From here, we have to wait for a bit of time until the distribution has been compiled.

At the end, the Armbian image will be flashed to the device specified when running the first command.

Remove it from the host machine, put it into the Orange Pi 5 board and connect power to it.

It is now time to configure the archive node.

Prepare the archive node

In this section, we will do the following things:

  1. Configure the SSDs
  2. Setup Reth
  3. Start the archive node

First and foremost, we need to connect to the board.
You can either use a keyboard + monitor combo or connect using SSH. No matter which solution you decide to use, you'll be forced to choose a new password and create a default user. Just follow those instructions, no need for detailed explanations on this here.

Assuming that we have connected the SSDs to the board, running the lsblk command should print something similar to this:



NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda           8:0    0   1.8T  0 disk
sdb           8:16   0   1.8T  0 disk
mtdblock0    31:0    0    16M  0 disk
mmcblk1     179:0    0 119.1G  0 disk
├─mmcblk1p1 179:1    0   256M  0 part /boot
└─mmcblk1p2 179:2    0 117.6G  0 part /var/log.hdd
                                      /
zram0       254:0    0   7.8G  0 disk [SWAP]
zram1       254:1    0    50M  0 disk /var/log
nvme0n1     259:0    0 119.2G  0 disk
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Where you can clearly see my two large NVMes at the top.

We will use lvm to "combine" our disks into one.

You can install the lvm2 tool using the following command:



apt install lvm2 -y
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Once installed, you should be able to create the physical volumes using the pvcreate command:



pvcreate /dev/sda /dev/sdb
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Then, running the pvdisplay command should print something similar to this:



  "/dev/sda" is a new physical volume of "<1.82 TiB"
  --- NEW Physical volume ---
  PV Name               /dev/sda
  VG Name
  PV Size               <1.82 TiB
  Allocatable           NO
  PE Size               0
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               Yx27XD-zoGA-USBi-oHZI-zAmh-tKpe-qLDoar

  "/dev/sdb" is a new physical volume of "<1.82 TiB"
  --- NEW Physical volume ---
  PV Name               /dev/sdb
  VG Name
  PV Size               <1.82 TiB
  Allocatable           NO
  PE Size               0
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               ws3Poe-PE0t-fyQX-l7QT-ncWE-Ym2K-dTdCTg
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Then, we need to create a volume group called vg0 using the vgcreate command:



vgcreate vg0 /dev/sda /dev/sdb
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Again, we can confirm that the volume group was created using the vgdisplay command:



  --- Volume group ---
  VG Name               vg0
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  2
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               0
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               <3.64 TiB
  PE Size               4.00 MiB
  Total PE              953864
  Alloc PE / Size       953864 / <3.64 TiB
  Free  PE / Size       0 / 0
  VG UUID               UE9Q3j-2TFe-BvNp-c65E-FCtY-onxA-Rwf40a
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Almost done with the volumes ! We need to create and format the logical volume called reth-data using the lvcreate and mkfs.ext4 commands.



lvcreate -n reth-data -l 100%FREE vg0
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(Just running the lvdisplay command to confirm that everything went well)



  --- Logical volume ---
  LV Path                /dev/vg0/reth-data
  LV Name                reth-data
  VG Name                vg0
  LV UUID                0Eb4Hk-jMfH-xrtl-vIPP-rRYy-FksS-5igxBj
  LV Write Access        read/write
  LV Creation host, time orangepi5, 2023-07-12 12:22:23 +0000
  LV Status              available
  # open                 0
  LV Size                <3.64 TiB
  Current LE             953864
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
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mkfs.ext4 /dev/vg0/reth-data
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Now we just have to mount the volume and make sure that it will be mounted every time the board starts.

To do that, we need to edit the /etc/fstab file and add the following line at the end of it. Note that you can use nano /etc/fstab to make the edit if you don't want to be stuck until the end of time in vim:



/dev/vg0/reth-data /mnt/reth-data ext4 defaults 0 1
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This will mount the LVM volume at /mnt/reth-data, but this location does not exist yet, so we need to create it using the mkdir command:



mkdir /mnt/reth-data
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Before we jump into deploying Reth, we just need to reboot the system using:



sudo reboot
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Connect back to the board, and move into the /mnt/reth-data folder. The available space should be huge - you can check this using the df -h . command.



cd /mnt/reth-data/
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Filesystem                  Size  Used Avail Use% Mounted on
/dev/mapper/vg0-reth--data  3.6T   28K  3.4T   1% /mnt/reth-data
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Now is the time to deploy Reth and the monitoring stack.
We will use Docker to run everything inside multiple containers. To install the tool, please refer to the official documentation available here.

Once this is done, we can clone the Reth repository:



git clone https://github.com/paradigmxyz/reth.git
cd reth
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It is recommended to switch to the latest release:



git checkout v0.1.0-alpha.3 # Replace this with the latest release tag.
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And change a few things in the Dockerfile:

  • First, the BUILD_PROFILE. ```Dockerfile

ARG BUILD_PROFILE=maxperf

...

...

Copy reth over from the build stage

COPY --from=builder /app/target/maxperf/reth /usr/local/bin


- Then, we can add some Rust flags to enable CPU-specific optimisations: 
```Dockerfile


# Builds dependencies
RUN RUSTFLAGS="-C target-cpu=native" cargo chef cook --profile $BUILD_PROFILE --recipe-path recipe.json

# Build application
COPY . .
RUN RUSTFLAGS="-C target-cpu=native" cargo build --profile $BUILD_PROFILE --locked --bin reth
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  • Finally, expose a new port 8551: ```Dockerfile

EXPOSE 30303 30303/udp 9001 8545 8546 8551


And this is it for the changes.

Now copy and paste the following content into a new `docker-compose.yaml` file in the parent directory (`/mnt/reth-data`):

```yaml


version: "3"

services:
  reth:
    restart: always
    build:
      context: ./reth
      dockerfile: Dockerfile
    networks:
      - reth-net
    ports:
      - "30303:30303"
      - "30303:30303/udp"
      - "9001:9001"
      - "8545:8545"
      - "8546:8546"
      - "8551:8551"
    volumes:
      - ./datadir:/app/datadir/
    command: ["node", "--datadir", "/app/datadir/", "--authrpc.addr", "0.0.0.0", "--http", "--http.addr", "0.0.0.0", "--metrics", "0.0.0.0:9001"]

  lighthouse:
    restart: always
    image: sigp/lighthouse:latest
    networks:
      - reth-net
    volumes:
      - ./datadir:/app/datadir/
    command:
      - "lighthouse"
      - "bn"
      - "--checkpoint-sync-url"
      - "https://mainnet.checkpoint.sigp.io"
      - "--execution-endpoint"
      - "http://reth:8551"
      - "--execution-jwt"
      - "/app/datadir/jwt.hex"

networks:
  reth-net:

volumes:
  datadir:
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This configuration combine both Reth (the execution client) and lighthouse (the consensus client).
You can start the containers using the following command:



docker compose up -d
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And you should see the building process starting. Be patient, this can take a while because we are building the most optimised binary possible of Reth.

Additionally, you can setup a monitoring stack by following the instructions from the official Reth documentation available here.

And voilà ! Once the node is synced (which should take a few days) we will be able to play with it ! In the meantime, there's nothing better than observing the sync process:

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Conclusion

In this post, we prepared our own Ethereum archive node, from building the OS with specific features enabled up until we installed and deployed the Reth execution client.

I would like to personally thank onbjerg for his help on resolving the issue caused by the incorrect page size. He actually was the one who indirectly made Reth work on the Orange Pi 5 !

Of course, we also want to say thank you to all the Reth contributors ❤️

We hope this helped ! Feel free to reach us out or comment if you have any question 🚀

Written by 0xpanoramix - Luca G.F. for Quartz.

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