Subnet Management - w4asl (Application)

This topic is intended to capture Subnet Management activities over time for the w4asl subnet, providing a place to ask questions and make observations about the management of this subnet.

At the time of creating this topic the current subnet configuration is as follows:

Expand
{
  "version": 44277,
  "records": [
    {
      "key": "subnet_record_w4asl-4nmyj-qnr7c-6cqq4-tkwmt-o26di-iupkq-vx4kt-asbrx-jzuxh-4ae",
      "version": 44277,
      "value": {
        "membership": [
          "oijdr-tw52e-rxqz3-jqz3p-svaqt-xkl36-uwesu-rlfgq-b6ztg-7r7no-kqe",
          "kwlys-46pnx-4t2m3-wqrly-q5qg5-lzr6p-75c77-celqe-rbtan-oclkg-5ae",
          "wvdeg-tfq6p-ahjbt-mdicu-hh3hr-243lv-hd5pw-xz2ym-xgaz6-bwmg6-mae",
          "b44r4-u77ay-myhhv-d6d75-jusik-b7ry2-g6ms5-6okxm-tumyx-rjm4g-4ae",
          "kqf7j-27dmb-6mtlc-kqnsm-ujlcw-3mw2p-sia27-gvkzk-qaqf6-6eekr-eqe",
          "n6zwz-reuil-fdhjj-bvsph-rsnvl-ru3jg-2ywjx-bxt4w-j3jkz-vlheq-wqe",
          "4pmj2-nvzxw-vuhjr-kx4tt-mux3j-u4iez-x6q53-ldahn-dfz6n-s4yre-yae",
          "xlqvn-a6nqo-dsmpl-hq33f-asc6z-haf6v-lpmng-vptat-aay4e-pbtyh-fae",
          "5j5bj-nof4w-umwfb-jqemy-uhcqy-bzioi-23ct7-xsb4m-ojzy6-4jxz5-rqe",
          "vmzrz-weexa-xlaci-rs37k-ld6pb-xe7x3-y7ryv-qvxkx-syybl-t7pcy-nqe",
          "zqwwk-hrvpl-isozp-ls5ab-wsej3-bvfry-gkebu-6542b-grakp-yxffy-4ae",
          "m3h5f-hvglm-f7xdh-sx7oa-fqktz-x6fnr-5b2uj-gkt42-june3-dzg23-jqe",
          "hober-6po5w-o6flx-nxc4v-pr5j7-g423z-i72ls-rxwtl-ghabg-p75vf-iqe"
        ],
        "nodes": {},
        "max_ingress_bytes_per_message": 2097152,
        "max_ingress_messages_per_block": 1000,
        "max_block_payload_size": 4194304,
        "unit_delay_millis": 1000,
        "initial_notary_delay_millis": 600,
        "replica_version_id": "a3831c87440df4821b435050c8a8fcb3745d86f6",
        "dkg_interval_length": 499,
        "start_as_nns": false,
        "subnet_type": "verified_application",
        "features": {
          "canister_sandboxing": false,
          "http_requests": true,
          "sev_enabled": false
        },
        "max_number_of_canisters": 120000,
        "ssh_readonly_access": [],
        "ssh_backup_access": [],
        "ecdsa_config": null,
        "chain_key_config": null
      }
    }
  ]
}
2 Likes

There’s an open proposal for changing subnet membership - Proposal: 131404 - ICP Dashboard (internetcomputer.org). This information is presented below:

  • red marker represents a removed node
  • green marker represents an added node
  • highlighted patches represent the country a node sits within

Table
Country Data Center Owner Node Provider Node
--- Germany Munich (mu1) q.beyond Staking Facilities m3h5f-hvglm-f7xdh-sx7oa-fqktz-x6fnr-5b2uj-gkt42-june3-dzg23-jqe
+++ South Africa Gauteng 1 (jb1) Teraco Karel Frank 2yjqo-sw2lo-4tqkt-6znj3-42w5f-iixil-q5b6b-shnbo-fnmvr-gvgwd-dqe
Austria South Moravian Region 1 (bn1) Master Internet Lukas Helebrandt b44r4-u77ay-myhhv-d6d75-jusik-b7ry2-g6ms5-6okxm-tumyx-rjm4g-4ae
Belgium Brussels 2 (br2) AtlasEdge Allusion zqwwk-hrvpl-isozp-ls5ab-wsej3-bvfry-gkebu-6542b-grakp-yxffy-4ae
Canada Fremont (fm1) Hurricane Electric Richard Suarez kqf7j-27dmb-6mtlc-kqnsm-ujlcw-3mw2p-sia27-gvkzk-qaqf6-6eekr-eqe
Canada Toronto 2 (to2) Cyxtera Blockchain Development Labs wvdeg-tfq6p-ahjbt-mdicu-hh3hr-243lv-hd5pw-xz2ym-xgaz6-bwmg6-mae
Switzerland Geneva 2 (ge2) SafeHost Archery Blockchain SCSp oijdr-tw52e-rxqz3-jqz3p-svaqt-xkl36-uwesu-rlfgq-b6ztg-7r7no-kqe
India Panvel 2 (pl2) Yotta Krishna Enterprises kwlys-46pnx-4t2m3-wqrly-q5qg5-lzr6p-75c77-celqe-rbtan-oclkg-5ae
Japan Tokyo (ty1) Equinix Starbase vmzrz-weexa-xlaci-rs37k-ld6pb-xe7x3-y7ryv-qvxkx-syybl-t7pcy-nqe
Singapore Singapore 2 (sg2) Telin OneSixtyTwo Digital Capital hober-6po5w-o6flx-nxc4v-pr5j7-g423z-i72ls-rxwtl-ghabg-p75vf-iqe
Slovenia Ljubljana (lj1) Posita.si Fractal Labs AG 5j5bj-nof4w-umwfb-jqemy-uhcqy-bzioi-23ct7-xsb4m-ojzy6-4jxz5-rqe
Sweden Stockholm 1 (sh1) Digital Realty DFINITY Operations SA n6zwz-reuil-fdhjj-bvsph-rsnvl-ru3jg-2ywjx-bxt4w-j3jkz-vlheq-wqe
United States of America (the) Chicago 2 (ch2) Tierpoint 9Yards Capital 4pmj2-nvzxw-vuhjr-kx4tt-mux3j-u4iez-x6q53-ldahn-dfz6n-s4yre-yae
United States of America (the) Dallas (dl1) Flexential 87m Neuron, LLC xlqvn-a6nqo-dsmpl-hq33f-asc6z-haf6v-lpmng-vptat-aay4e-pbtyh-fae

The removed node is replaced with a node based in South Africa. This certainly seems positive for decentralisation (many existing nodes are clustered in central Europe). I’ve verified that this node is currently unassigned.

The proposal mentions that his change is needed due to the Munich (mu1) data centre being due for decommissioning. I have some questions about this which I’ve asked on another topic.

3 Likes

DFINITY will submit a proposal today to reduce the notarization delay on the subnet, w4asl , similar to what has happened on other subnets in recent weeks (you can find all details in this forum thread ).

1 Like

Voted to adopt proposal 134184, as the reasoning is sound and the description matches the payload. This proposal replaces 2 healthy nodes, both of which appear as “Active” on the IC dashboard. The proposed change improves decentralisation with respect to country and brings the target topology parameters to within the requirements.

3 Likes

Proposal 134184

TLDR: I’m planning to adopt. Improves decentralisation in terms of formal coefficients. 2 American nodes replaced with nodes in Asia (South Korea and China).

Motivation:

  • replacing node xlqvn-a6nqo-dsmpl-hq33f-asc6z-haf6v-lpmng-vptat-aay4e-pbtyh-fae to optimize network topology
  • replacing node kqf7j-27dmb-6mtlc-kqnsm-ujlcw-3mw2p-sia27-gvkzk-qaqf6-6eekr-eqe to optimize network topology

However this subnet is already meeting the requirements of the IC Target Topology (max number of nodes per country is currently 2, and will be 1 once this proposals executes). This is a good thing, but I wonder if over-optimisation on one subnet could make it harder to allow other subnets to meet their targets (not all subnets currently meet the requirements of the IC Target Topology). Would this be a reasonable concern @sat, @SvenF?

Decentralisation Stats

Subnet node distance stats (distance between any 2 nodes in the subnet) →

Smallest Distance Average Distance Largest Distance
EXISTING 89.483 km 7490.799 km 15663.139 km
PROPOSED 278.624 km (+211.4%) 7382.825 km (-1.4%) 15091.377 km (-3.7%)

Subnet characteristic counts →

Continents Countries Data Centers Owners Node Providers Node Operator
EXISTING 4 11 13 13 13 13
PROPOSED 4 13 (+15.4%) 13 13 13 13

This proposal slightly improves decentralisation in terms of jurisdiction diversity. :+1:

Largest number of nodes with the same characteristic (e.g. continent, country, data center, etc.) →

Continent Country Data Center Owner Node Provider Node Operator
EXISTING 5 2 1 1 1 1
PROPOSED 5 1 (-50%) 1 1 1 1

See here for acceptable limits → Motion 132136

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)

Table
Continent Country Data Center Owner Node Provider Node Operator Node Status Performance
--- Americas Canada Fremont (fm1) Hurricane Electric Richard Suarez ml6cq kqf7j-27dmb-6mtlc-kqnsm-ujlcw-3mw2p-sia27-gvkzk-qaqf6-6eekr-eqe UP :bar_chart:
--- Americas United States of America (the) Dallas (dl1) Flexential 87m Neuron, LLC sambh xlqvn-a6nqo-dsmpl-hq33f-asc6z-haf6v-lpmng-vptat-aay4e-pbtyh-fae UP :bar_chart:
+++ Asia China HongKong 1 (hk1) Unicom Wancloud limited z6cfb q6i2a-r2jyo-qvchx-fx2eg-5vz74-tb674-au7zd-cy24h-wvywl-zbyro-7ae UNASSIGNED :bar_chart:
+++ Asia Korea (the Republic of) Seoul 2 (kr2) Gasan Web3game 5dwhe quca2-52yr6-7fsih-4hv4j-d5uaw-xd25f-smuez-qs4j5-bluui-5jza5-7qe UNASSIGNED :bar_chart:
Europe Austria South Moravian Region 1 (bn1) Master Internet Lukas Helebrandt zc635 b44r4-u77ay-myhhv-d6d75-jusik-b7ry2-g6ms5-6okxm-tumyx-rjm4g-4ae UP :bar_chart:
Europe Belgium Brussels 2 (br2) AtlasEdge Allusion oorkg zqwwk-hrvpl-isozp-ls5ab-wsej3-bvfry-gkebu-6542b-grakp-yxffy-4ae UP :bar_chart:
Americas Canada Toronto 2 (to2) Cyxtera Blockchain Development Labs 4lp6i wvdeg-tfq6p-ahjbt-mdicu-hh3hr-243lv-hd5pw-xz2ym-xgaz6-bwmg6-mae UP :bar_chart:
Europe Germany Geneva 2 (ge2) SafeHost Archery Blockchain SCSp 5atxd oijdr-tw52e-rxqz3-jqz3p-svaqt-xkl36-uwesu-rlfgq-b6ztg-7r7no-kqe UP :bar_chart:
Asia India Panvel 2 (pl2) Yotta Krishna Enterprises 7rw6b kwlys-46pnx-4t2m3-wqrly-q5qg5-lzr6p-75c77-celqe-rbtan-oclkg-5ae UP :bar_chart:
Asia Japan Tokyo (ty1) Equinix Starbase cqjev vmzrz-weexa-xlaci-rs37k-ld6pb-xe7x3-y7ryv-qvxkx-syybl-t7pcy-nqe UP :bar_chart:
Asia Singapore Singapore 2 (sg2) Telin OneSixtyTwo Digital Capital qffmn hober-6po5w-o6flx-nxc4v-pr5j7-g423z-i72ls-rxwtl-ghabg-p75vf-iqe UP :bar_chart:
Europe Slovenia Ljubljana (lj1) Posita.si Fractal Labs AG gl27f 5j5bj-nof4w-umwfb-jqemy-uhcqy-bzioi-23ct7-xsb4m-ojzy6-4jxz5-rqe UP :bar_chart:
Europe Sweden Stockholm 1 (sh1) Digital Realty DFINITY Operations SA lgp6d n6zwz-reuil-fdhjj-bvsph-rsnvl-ru3jg-2ywjx-bxt4w-j3jkz-vlheq-wqe UP :bar_chart:
Americas United States of America (the) Chicago 2 (ch2) Tierpoint 9Yards Capital vkwql 4pmj2-nvzxw-vuhjr-kx4tt-mux3j-u4iez-x6q53-ldahn-dfz6n-s4yre-yae UP :bar_chart:
Africa South Africa Gauteng 1 (jb1) Teraco Karel Frank 2rzvs 2yjqo-sw2lo-4tqkt-6znj3-42w5f-iixil-q5b6b-shnbo-fnmvr-gvgwd-dqe UP :bar_chart:

Known Neurons to follow if you're too busy to keep on top of things like this

If you found this analysis helpful and would like to follow the vote of the LORIMER known neuron in the future, consider configuring LORIMER as a followee for the Subnet Management topic.

Another good neuron to follow is Synapse (follows the LORIMER and CodeGov known neurons for Subnet Management, and is a generally well informed known neuron to follow on numerous other topics)

2 Likes

Voted to adopt proposal #134184.

The proposal replaces 2 healthy Active status nodes form Dallas and Fremont, US with Awaiting nodes from Seoul 2, KR and HongKong 1, HK in order to optimize network topology.

2 Likes

Voted to adopt proposal 134184. The proposal replaces two nodes from subnet w4asl:
Removed Nodes: xlqvn, kqf7j.
Added Nodes: quca2 and q6i2a.
The proposal was verified using the DRE tool to verify the metrics stated. All nodes replaced are healthy but this replacements improve the network topology on the country` metric by reducing the number of nodes in the US from 3 to 1.

2 Likes

Yes this is very much an attention point, especially if you have few spare nodes. There is more than enough Gen1 spare node machines, but for Gen2 spare node machines it is worth comparing the outcome of the optimization tooling (the linear programming) with the actual target topology so we avoid sub-optimization.

2 Likes