Announcing NodeStar - a Stellar Quorum Explorer I'm working on an iOS app to graphically visualize the Stellar Network and each node's quorum set. I'm also working on some math to express how important each node is relative to the quorum set and eventually network quorum. Eventually it will include concepts from the SCP white paper like Dispensable Sets etc. https://github.com/foundero/NodeStar Math: https://github.com/foundero/NodeStar#math Effected - how often does node A have an effect on quorum set Q Effect() - fraction of node truthiness combinations where node A has an effect on quorum set Q Require() - fraction of node truthiness combinations where node A can veto, when Q otherwise would be true Influence() - fraction of node truthiness combinations where node A can overpower, when it Q otherwise would be false Let me know what you think, Thanks! -- Thanks to https://stellarbeat.io/ for letting me use their data. This project sparked from discussion in the thread: https://galactictalk.org/d/1521-what-are-indicators-of-a-healthy-stellar-network

NodeStar - a Stelllar Quorum Explorer

jeffditullio

Announcing NodeStar - a Stellar Quorum Explorer

I'm working on an iOS app to graphically visualize the Stellar Network and each node's quorum set. I'm also working on some math to express how important each node is relative to the quorum set and eventually network quorum. Eventually it will include concepts from the SCP white paper like Dispensable Sets etc.

https://github.com/foundero/NodeStar

NodeStar Screenshot

Math:

https://github.com/foundero/NodeStar#math

Effected - how often does node A have an effect on quorum set Q
Effect() - fraction of node truthiness combinations where node A has an effect on quorum set Q
Require() - fraction of node truthiness combinations where node A can veto, when Q otherwise would be true
Influence() - fraction of node truthiness combinations where node A can overpower, when it Q otherwise would be false

$Math 1$

$Math 2$

Let me know what you think, Thanks!

--
Thanks to https://stellarbeat.io/ for letting me use their data.
This project sparked from discussion in the thread: https://galactictalk.org/d/1521-what-are-indicators-of-a-healthy-stellar-network

jeffditullio

It's on the AppStore !

jeffditullio

Added ability to explore validator clusters of the entire network. Where a cluster is a set of validators that have identical set of incoming (dependent validators) and outgoing (references to validators) validators including graph traversal. Pretty interesting... I would have thought there'd be more clusters.
Clusters Screenshot

tinco

This is awesome Jeff, wish I had an iPhone so I could play with it. Once I've got some more flesh on my Quorum Explorer I'll take a look at your impact metrics and see if I can incorporate them. Should we call them DiTullio Impact Metrics so I can attribute them to you? ?

jeffditullio

Random Questions:

1) There are 36 validators with a simple quorum set (depth=1) and 17 validators that use one level of inner quorum set (depth=2) and no validators that use inner quorum sets of inner quorum sets aka depth>2. (see depth chart screenshot) Is it allowed to have inner quorum sets within an inner quorum set aka depth>2 ?

2) Of the 53 validators with a defined quorum set, only 12 of them reference themself in their own quorum set. According to the whitepaper it seems that every quorum slice by definition must reference self. All the tier 1 validators: SDF validator 1-3 & Eno (see cluster screenshot) reference themselves in their slices. Is it bad that 41 validators have quorum sets that don't reference themselves? I'm not sure what the impact of this is...

3) Stellar states "Stellar.org doesn't currently run a validator." https://github.com/stellar/docs/blob/master/validators.md is this true? What are SDF validator 1-3 then?

jeffditullio

Created an ugly react.js version: https://nodestar.info/

jeffditullio

Some screenshots... dang my design is bad ?
Clusters Screenshot

cryptobrant

Brilliant