This Rust crate is a subcomponent of the Bitcoin system, providing functionality for gathering and reporting statistics about nodes in the network.
Notice: This crate is part of a direct translation from C++ to Rust of the Bitcoin core. As such, some of the function bodies may still be in the process of translation. Please note that this system will become testable once the translation process is complete.
The NodeStats struct represents the statistics
for a single node, including information on the
node's version, services, and the time it was last
seen. The NodesStats struct holds a vector of
NodeStats objects, allowing for reporting on
multiple nodes. The NodeStateStats struct
provides additional statistics for a node's state,
including the number of connections and the number
of active threads.
There are no specific mathematical concepts associated with the tokens in this crate.
95> which stats do we want to track for a bitcoin node?
There are several stats that can be useful to track for a Bitcoin node, depending on what information you're interested in. Here are a few examples:
Block and transaction throughput: This tracks the number of blocks and transactions processed by the node over time. It can give you an idea of the network's overall usage and how much load your node is handling.
Uptime and downtime: This tracks how long your node has been running without any issues (uptime) and how long it has been down or experiencing issues (downtime). It can help you identify any reliability issues with your node or with the network as a whole.
Peer connections: This tracks the number of peers your node is connected to over time. It can give you an idea of how well-connected your node is to the network and whether you need to adjust your settings to establish more connections.
Memory and disk usage: This tracks how much memory and disk space your node is using over time. It can help you identify any resource constraints on your system and whether you need to optimize your node's configuration.
Mempool size: This tracks the size of your node's mempool over time. It can give you an idea of how much unconfirmed transaction traffic is flowing through the network and how much of that traffic your node is handling.
Fee estimation accuracy: This tracks the accuracy of your node's fee estimation algorithm over time. It can help you identify any issues with your algorithm and whether you need to make adjustments to ensure your node is providing accurate fee estimates.
These are just a few examples, and there are many other stats that could be tracked depending on your specific needs and interests.
96> what are some others?
Here are some additional stats that could be useful to track for a Bitcoin node:
Uptime: This would track how long the node has been running continuously without any downtime. It can help identify stability issues and maintenance requirements.
Block validation time: This would track the time it takes for the node to validate a new block after receiving it. It can help identify performance bottlenecks and resource utilization issues.
Memory usage: This would track how much memory the node is using over time. It can help identify memory leaks and other memory-related issues.
Disk usage: This would track how much disk space the node is using over time. It can help identify storage-related issues and help plan for storage requirements.
Transaction processing time: This would track the time it takes for the node to process new transactions after receiving them. It can help identify performance bottlenecks and resource utilization issues.
Network latency: This would track the time it takes for the node to receive data from other nodes in the network. It can help identify connectivity and networking issues.
Connection count: This would track how many connections the node has to other nodes in the network. It can help identify network topology issues and resource utilization issues.
Bandwidth usage: This would track how much data the node is sending and receiving over the network. It can help identify bandwidth-related issues and help plan for bandwidth requirements.
Fee estimation accuracy: This would track how accurate the node's fee estimation algorithm is compared to actual transaction fees. It can help identify issues with the fee estimation algorithm and help optimize transaction processing.
Mempool size: This would track how many unconfirmed transactions are currently in the node's mempool. It can help identify mempool-related issues and help optimize transaction processing.
97> what are the acceptable values associated with these metrics?
The acceptable values for the metrics associated with a Bitcoin node will depend on the specific metric. Here are some examples:
Block height: This should be a non-negative integer representing the height of the current best block known to the node.
Difficulty: This should be a positive floating-point number representing the current difficulty of the Bitcoin network.
Hashrate: This should be a positive floating-point number representing the estimated hashrate of the Bitcoin network in hashes per second.
Memory usage: This should be a non-negative integer representing the amount of memory (in bytes) currently used by the Bitcoin node.
Uptime: This should be a non-negative integer representing the number of seconds the node has been running without interruption.
Peers: This should be a non-negative integer representing the number of connected peers the node has.
Transactions: This should be a non-negative integer representing the total number of transactions the node has processed.
Transactions per second (TPS): This should be a positive floating-point number representing the average number of transactions processed per second by the node over a specific time period.
Mempool size: This should be a non-negative integer representing the current size of the node's transaction memory pool (mempool).
Fee estimates: These should be positive floating-point numbers representing the estimated fees (in satoshis per byte) required to get a transaction confirmed within a certain number of blocks.
98> what are their ranges in practice?
The acceptable ranges for various Bitcoin node metrics can vary depending on the specific implementation, configuration, and network conditions. Here are some approximate ranges for a few common metrics:
Block size: up to 4 MB for Bitcoin and up to 32 MB for Bitcoin Cash
Block interval: 10 minutes for Bitcoin and 10 minutes to 20 seconds for Bitcoin Cash depending on difficulty adjustments
Hash rate: varies widely but can be measured in exahashes per second (EH/s) for Bitcoin
Number of transactions per second: up to a few hundred transactions per second for Bitcoin and several thousand transactions per second for Bitcoin Cash
Transaction fee: usually measured in satoshis per byte (sat/B), with typical fees ranging from 1-10 sat/B for low priority transactions and up to several hundred sat/B for priority transactions
Memory usage: can vary widely depending on the node implementation, but typically ranges from several hundred megabytes to several gigabytes
Disk space usage: depends on the size of the blockchain, which is currently over 400 GB for Bitcoin and over 50 GB for Bitcoin Cash as of March 2023.