Configuring Witness Node as Delayed Node

Delayed node is the difference between the time that a node announces the discovery of a new block or a transaction and the time that other node receives the information for a period of operation.

The witness_node program now can be used to serve the features that was served by delayed_node.

Configuration

To use witness_node as a delayed node, some options are required to be configured appropriately.

1. Disable P2P connection

Start witness_node with command line option --seed-nodes="[]" and/or --p2p-endpoint=127.0.0.1:0, or configure the options in config.ini:

p2p-endpoint = 127.0.0.1:0
seed-nodes = []

2. Enable delayed_node plugin

Start witness_node with --plugins="delayed_node [and other required plugins]", or configure it in config.ini:

plugins = delayed_node

3. Fetch blocks from a trusted witness node via RPC

Start witness_node with --trusted-node="ip.address.of.the.witness.node:rpc-port", or configure it in config.ini:

trusted-node = ip.address.of.the.witness.node:rpc-port

Sample Configurations

Assuming the RPC endpoint of the trusted node is 127.0.0.1:8090, we can have following options in config.ini of a delayed node.

p2p-endpoint = 127.0.0.1:0
seed-nodes = []
plugins = delayed_node account_history api_helper_indexes
trusted-node = 127.0.0.1:8090

The plugin code is available in the below location,

https://gitlab.com/PBSA/peerplays/-/tree/master/libraries/plugins