Prerequisites - Polygon Developer Docs

Node system requirements

Please note that all system requirements listed below are presented in a Minimum/Recommended format.

Mainnet specs

Node type	RAM	CPU	Storage	Network bandwidth
Full Node/Sentry Node	32 GB/64 GB	8 core/16 core	4 TB/6 TB	1 Gbit/s
Validator Node	32 GB/64 GB	8 core/16 core	4 TB/6 TB	1 Gbit/s
Archive Node (Erigon)	64 GB	16 core	16 TB(`io1` or above with at least 20k+ iops and RAID-0 based disk structure)	1 Gbit/s

Testnet (Amoy) specs

Node type	RAM	CPU	Storage	Network bandwidth
Full Node/Sentry Node	8 GB/16 GB	8 core/16 core	1 TB/2 TB	1 Gbit/s
Validator Node	8 GB/16 GB	8 core/16 core	1 TB/2 TB	1 Gbit/s
Archive Node (Erigon)	16 GB	16 core	1 TB/2 TB (`io1` or above with at least 20k+ iops and RAID-0 based disk structure)	1 Gbit/s

Downloading the snapshot

It is recommended that you keep your snapshots handy before setting up the node. Link to the snapshot documentation here.

Open necessary ports

Sentry/full nodes

Port	Description
`26656`	Heimdall service connects your node to another node’s Heimdall service using this port.
`30303`	Bor service connects your node to another node’s Bor service using this port.
`22`	For the validator to be able to SSH from wherever they are.
`26660`	Prometheus port for Tendermint/Heimdall. Not required to be opened to the public. Only allow for the monitoring systems (Prometheus/Datadog).
`7071`	Metric port for Bor. Only needs to be opened for the Monitoring system.
`8545`, `8546`, `1317`	Can be opened for Bor HTTP RPC, Bor WS RPC, and Heimdall API respectively; but only if really necessary.

Validator nodes

Port	Description
`22`	Opening this to the public is not a good idea as the default SSH port 22 is prone to attacks. It is better to secure it by allowing it only in a closed network (VPN).
`30303`	To be opened to only Sentry to which the validator is connected for Bor P2P discovery.
`26656`	To be opened to only Sentry to which the validator is connected for Heimdall/Tendermint P2P discovery.
`26660`	Prometheus port for Tendermint/Heimdall. Not required to be opened to the public. Only allow for the monitoring systems (Prometheus/Datadog).
`7071`	Metric port for Bor. Only needs to be opened for the monitoring system.

Install RabbitMQ

This step is only relevant for validator nodes.

Before setting up your validator node, it’s advisable to install the RabbitMQ service. You can use the following commands to set up RabbitMQ (if it’s not already installed):

sudo apt-get update
sudo apt install build-essential
sudo apt install erlang
wget https://github.com/rabbitmq/rabbitmq-server/releases/download/v3.10.8/rabbitmq-server_3.10.8-1_all.deb
sudo dpkg -i rabbitmq-server_3.10.8-1_all.deb

Connect to Ethereum RPC endpoint

This step is only relevant for validator nodes.

Validator nodes need to connect to an Ethereum RPC endpoint. You may use your own Ethereum node, or utilize external infrastructure providers.

Mandatory checklist for validators

Please follow the below checklist in order to set up your validator node using binaries, Ansible, or packages.

Checklist	Binaries	Ansible	Packages
Machines required	2 Machines - sentry & validator	3 Machines - local machine, sentry and validator	2 Machines - sentry & validator
Install Go packages	Yes	No	No
Install Python	No	Yes (only on the local machine where the Ansible Playbook runs)	No
Install Ansible	No	Yes (only on one machine)	No
Install Bash	No	No	Yes
Run Build Essential	Yes	No	No
Node setup	Using binaries	Using Ansible	Using packages

Polygon Chain overview: what the node is participating in: dual-layer architecture, milestones, checkpoints.
Become a validator: staking, delegation, and the full path from node to active validator.
RPC endpoints: if you only need a connection to the network without running your own node.

​Node system requirements

​Mainnet specs

​Testnet (Amoy) specs

​Downloading the snapshot

​Open necessary ports

​Sentry/full nodes

​Validator nodes

​Install RabbitMQ

​Connect to Ethereum RPC endpoint

​Mandatory checklist for validators

​Related

Node system requirements

Mainnet specs

Testnet (Amoy) specs

Downloading the snapshot

Open necessary ports

Sentry/full nodes

Validator nodes

Install RabbitMQ

Connect to Ethereum RPC endpoint

Mandatory checklist for validators

Related