This topic is intended to capture Subnet Management activities over time for the vcpt7 subnet, providing a place to ask questions and make observations about the management of this subnet.
TLDR: Replaces a down and degraded node with two up ones. The sole DFINITY node is removed, but replace with another DFINITY node, conforming to business rules relating to subnet recovery procedures. Decentralisation stats remain within IC Target Topology specification. Clustering within Europe is increased by country diversity is also increased.
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
Smallest Distance
Average Distance
Largest Distance
EXISTING
0 km
7377.761 km
16465.583 km
PROPOSED
1.636 km (+∞%)
6914.14 km (-6.3%)
16465.583 km
This proposal slightly reduces decentralisation, considered purely in terms of geographic distance (and therefore there’s a slight theoretical reduction in localised disaster resilience).
Subnet characteristic counts →
Continents
Countries
Data Centers
Owners
Node Providers
Node Operator
EXISTING
4
10
13
13
13
13
PROPOSED
4
11 (+9.1%)
13
13
13
13
This proposal slightly improves decentralisation in terms of jurisdiction diversity.
Largest number of nodes with the same characteristic (e.g. continent, country, data center, etc.) →
The above subnet information is illustrated below, followed by a node reference table:
Map Description
Red marker represents a removed node (transparent center for overlap visibility)
Green marker represents an added node
Blue marker represents an unchanged node
Highlighted patches represent the country the above nodes sit within (red if the country is removed, green if added, otherwise grey)
Light grey markers with yellow borders are examples of unassigned nodes that would be viable candidates for joining the subnet according to formal decentralisation coefficients (so this proposal can be viewed in the context of alternative solutions that are not being used)
You may wish to follow the CO.DELTA known neuron if you found this analysis helpful.
CO.DELTA △
We’re a verifiably decentralised collective who review IC deltas (changes applied by NNS proposals). We follow a common code:
Look: We observe the details and context of NNS proposals
Test: We test and verify the claims made by those proposals
Automate: We automate as much as possible by building increasingly sophisticated tools that streamline and strengthen the reviewal process.
Every vote cast by CO.DELTA is the result of consensus among diligent, skilled and experienced team members acting independently. The CO.DELTA neuron follows the vote of D-QUORUM on NNS topics that the CO.DELTA team does not handle directly. You can therefore follow CO.DELTA on all topics and rely on the highest quality of vote.
Note that this analysis involved data provided by the IC-API, which is not open source. I’m in the process of switching over to more verifiable sources of this sort of information for future proposal reviews. See here for related discussion.
This proposal replaces node 6ucn7 which appears in the dashboard as “Offline”, and node csrkp which appears in the dashboard as “Degraded”. As seen in the Node Provider Rewards tool, node csrkp has had a 100% block failure rate for the last 2 full days for which data are shown.
The replacement nodes appear in the dashboard as “Healthy”. As shown in the proposal, decentralisation parameters are unchanged and remain within the requirements of the target topology.
About CodeGov CodeGov has a team of developers who review and vote independently on the following proposal topics: IC-OS Version Election, Protocol Canister Management, Subnet Management, API Boundary API Boundary Node Management, Node Admin and Participant Management. The CodeGov NNS known neuron is configured to follow our reviewers on these technical topics. We also have a group of Followees who vote independently on the Governance and the SNS & Neurons' Fund topics. We strive to be a credible and reliable Followee option that votes on every proposal and every proposal topic in the NNS. We also support decentralisation of SNS projects such as WaterNeuron, KongSwap, and Alice with a known neuron and credible Followees.
Learn more about CodeGov and its mission at codegov.org.
Reason:
Replaces 2 nodes one Degraded node with IC_Replica_SlowerServerThanSubnetMedian status csrkp from SE1 DC in Washington owned by Dfinity with healthy unassigned node 6hkcx from Zurich owned also by Dfinity, while dead node 6ucn7 from ZH5 DC in Zurich is being replaced with healthy unassigned node r7few from Bucharest with slight improvement to decentralization.
About CodeGov CodeGov has a team of developers who review and vote independently on the following proposal topics: IC-OS Version Election, Protocol Canister Management, Subnet Management, Node Admin, and Participant Management. The CodeGov NNS known neuron is configured to follow our reviewers on these technical topics. We also have a group of Followees who vote independently on the Governance and the SNS & Neuron's Fund topics. We strive to be a credible and reliable Followee option that votes on every proposal and every proposal topic in the NNS. We also support decentralization of SNS projects such as WaterNeuron, KongSwap, and Alice with a known neuron and credible Followees.
Learn more about CodeGov and its mission at codegov.org.
TLDR:
This proposal removes 2 node(s) one degraded and one offline from Zurich 5, Washington 1 and adds 2 replacement node(s) in Zurich 2, Bucharest. Decentralisation stats remian the same. I vote to adopt.
You may wish to follow the CO.DELTA known neuron if you found this analysis helpful.
CO.DELTA
We’re a verifiably decentralised collective who review IC deltas (changes applied by NNS proposals). We follow a common code:
Look: We observe the details and context of NNS proposals
Test: We test and verify the claims made by those proposals
Automate: We automate as much as possible by building increasingly sophisticated tools that streamline and strengthen the reviewal process.
Every vote cast by CO.DELTA is the result of consensus among diligent, skilled and experienced team members acting independently. The CO.DELTA neuron follows the vote of D-QUORUM on NNS topics that the CO.DELTA team does not handle directly. You can therefore follow CO.DELTA on all topics and rely on the highest quality of vote.
Current Nakamoto Coefficients and Topology, avg = 4.50
Attribute
Nakamoto Coefficient
Identical attribute values
Max allowed identical values
Unique Counts
Country
3
2
10
Data Center
5
1
13
Data Center Owner
5
1
13
Node Provider ID
5
1
13
Proposed Nakamoto Coefficients and Topology, avg = 4.50
Attribute
Nakamoto Coefficient
Identical attribute values
Max allowed identical values
Unique Counts
Country
3
2
11
Data Center
5
1
13
Data Center Owner
5
1
13
Node Provider ID
5
1
13
You may wish to follow the CO.DELTA known neuron if you found this analysis helpful.
CO.DELTA
We’re a verifiably decentralised collective who review IC deltas (changes applied by NNS proposals). We follow a common code:
Look: We observe the details and context of NNS proposals.
Test: We test and verify the claims made by those proposals.
Automate: We automate as much as possible by building increasingly sophisticated tools that streamline and strengthen the reviewal process.
Every vote cast by CO.DELTA is the result of consensus among diligent, skilled and experienced team members acting independently. The CO.DELTA neuron follows the vote of D-QUORUM on NNS topics that the CO.DELTA team does not handle directly. You can therefore follow CO.DELTA on all topics and rely on the highest quality of vote.
Summary:
One of the replaced nodes is a DFINITY node which is flagged as Degraded with a status of IC_Replica_SlowerServerThanSubnetMedian. Looking at the Node Provider Rewards we can see that this node has 100% failure rate between the 7th and the 9th of August. This node is replaced by another DFINITY node.
The proposal replaces two nodes, one offline and another degraded, on subnet vcpt7:
Added Nodes: nodes 6hkcx, Dashboard Status: Healthy and Not assigned to a subnet and r7few, Dashboard Status: Healthy and Not assigned to a subnet
The decentralization remains unchanged across all features
The subnet is within the current approved IC Target Topology so no issues here.
About CodeGov CodeGov has a team of developers who review and vote independently on the following proposal topics: IC-OS Version Election, Protocol Canister Management, Subnet Management, Node Admin, and Participant Management. The CodeGov NNS known neuron is configured to follow our reviewers on these technical topics. We also have a group of Followees who vote independently on the Governance and the SNS & Neuron's Fund topics. We strive to be a credible and reliable Followee option that votes on every proposal and every proposal topic in the NNS. We also support decentralization of SNS projects such as WaterNeuron, KongSwap, and Alice with a known neuron and credible Followees.
Learn more about CodeGov and its mission at codegov.org.
