Gossip Glomers BEAM (Elixir, Gleam)

Main page: https://fly.io/dist-sys/

Maelstrom docs: https://github.com/jepsen-io/maelstrom

Elixir

1. Echo (echo)
   • https://fly.io/dist-sys/1/
2. Unique ID Generation (unique-ids)
   • https://fly.io/dist-sys/2/
3. Broadcast (broadcast)
   • https://fly.io/dist-sys/3a/
   • https://fly.io/dist-sys/3b/
   • https://fly.io/dist-sys/3c/
   • https://fly.io/dist-sys/3d/
   • https://fly.io/dist-sys/3e/
4. Grow-Only Counter (g-counter)
   • https://fly.io/dist-sys/4/
5. Kafka-Style Log (kafka)
   • https://fly.io/dist-sys/5a/
   • https://fly.io/dist-sys/5b/
   • https://fly.io/dist-sys/5c/
6. Totally-Available... (txn-rw-register)
   • https://fly.io/dist-sys/6a/
   • https://fly.io/dist-sys/6b/
   • https://fly.io/dist-sys/6c/

Extras? Not listed on Fly.io Gossip Glomers, but exist within Maelstrom:

• Datomic (txn-list-append)
  • https://github.com/jepsen-io/maelstrom/blob/main/doc/05-datomic/01-single-node.md

    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 1
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 30 --node-count 1 --concurrency 10n --rate 100
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/05-datomic/02-shared-state.md

    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 100
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/05-datomic/03-persistent-trees.md

    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 100
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/05-datomic/04-optimization.md

    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 1
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 100
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 10
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 100
    ./maelstrom test -w txn-list-append --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 100 --consistency-models serializable
    

• Raft (lin-kv)
  • https://github.com/jepsen-io/maelstrom/blob/main/doc/06-raft/01-key-value.md

    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --rate 10 --node-count 1 --concurrency 2n
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 2 --rate 10 --concurrency 2n
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/06-raft/02-leader-election.md

    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n --rate 10
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n --rate 0
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/06-raft/03-replication.md

    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n --rate 5
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 60 --node-count 3 --concurrency 2n --rate 1 --nemesis partition
    

  • https://github.com/jepsen-io/maelstrom/blob/main/doc/06-raft/04-committing.md

    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 60 --node-count 3 --concurrency 10n --rate 100 --nemesis partition --nemesis-interval 3 --test-count 5
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 10 --node-count 3 --concurrency 2n --rate 100
    ./maelstrom test -w lin-kv --bin EXECUTABLE --time-limit 30 --node-count 3 --concurrency 2n --rate 1 --nemesis partition --nemesis-interval 10
    ./maelstrom test -w lin-kv --bin EXECUTABLE --node-count 3 --concurrency 4n --rate 30 --time-limit 60 --nemesis partition --nemesis-interval 10 --test-count 10
    

Gleam

TBD!

Miscellaneous Links

• https://notes.eatonphil.com/2025-08-09-what-even-is-distributed-systems.html
• https://transactional.blog/blog/2024-data-replication-design-spectrum
• https://transactional.blog/talk/enough-with-all-the-raft