Ithaca

Context

Snapshot "Ithaca" protocol.

First two diffs generated with the following commands.

$ git checkout 091a605a8aa9e39fd796268921580c064f4b0b1e # head of proto-i branch
$ ./scripts/snapshot_alpha.sh ithaca_012
$ git add --all
$ git stash
$ git checkout master
$ git stash pop
# resolve conflict in docs/index.rst
$ git add docs/index.rst
$ git checkout -b ithaca
$ git commit -m "Snapshot protocol"

$ dune exec scripts/declare-new-protocol-unit-test/main.exe -- 012 Psithaca
$ ./scripts/link_protocol.sh src/proto_012_Psithaca
$ git add --all
$ git commit -m "Link protocol"

After that added manually a few more diffs that are necessary for correct snapshotting, following !3522 (merged) as example.

Changes to migration code (stitching of Alpha from Ithaca instead of Hangzhou) will be done in a separate MR.

Backports

Note that proto-i branch has the following MRs backported from master after generation of vanity nonce. They are not touching src/proto_alpha/lib_protocol but are required for clean snapshotting and include fixes in baker that we need for correct use of Ithaca.

• !3753 (merged) (in !4044 (merged))
• !3847 (merged) (in !4045 (merged))
• !3968 (merged) (in !4046 (merged))
• !3891 (merged) (in !4048 (merged))
• !3976 (merged) (in !4049 (merged))
• !4029 (merged) (in !4053 (merged))
• !4018 (merged) (in !4054 (merged))

Manually testing the MR

Import snapshot of mainnet data (Hangzhou), migrate to Ithaca and try to bake a few blocks.

1. Download and import snapshot.

$ wget https://mainnet.xtz-shots.io/tezos-mainnet-1943300.rolling
$ ./tezos-node snapshot import tezos-mainnet-1943300.rolling --block BLnvNwUBUMXh6j48tsCp2athiBXfvhbD2dHuSR66Umw5mp2AoNh

2. Create "yes wallet", patch node to accept fake signatures.

$ dune exec scripts/yes-wallet/yes_wallet.exe -- create from context ~/.tezos-node in /tmp/yes-wallet --active-bakers-only
$ patch -p1 < scripts/yes-node.patch

3. Configure protocol override in the next level.

$ patch -p1 <<EOF
diff --git a/src/bin_node/node_config_file.ml b/src/bin_node/node_config_file.ml
index 4b83bf412d..2c5eacf6b8 100644
--- a/src/bin_node/node_config_file.ml
+++ b/src/bin_node/node_config_file.ml
@@ -87,0 +88 @@ let mainnet_user_activated_upgrades =
+    (1943301l, "PsithacaTTq3oumpKDw1pVvRrAtqiK4hKnP3Q4FNrXN9yc6KPhp");
EOF

4. Build with $ make.

5. Run tezos node in one terminal, bake migration blocks with tezos client in another terminal.

$ ./tezos-node run --synchronisation-threshold 0 --connections 0 --rpc-addr localhost |& tee tezos-node.log

$ ./tezos-client -d /tmp/yes-wallet bake for foundation2 --minimal-timestamp |& tee tezos-client.log.1

Observe activation of protocols in the tezos node logs.

Dec 14 23:00:51.564 - validation: initializing protocol PsithacaTTq3...
Dec 14 23:00:51.580 - validator.block: block at level 1943301 successfully pre-applied
Dec 14 23:00:51.580 - validator.block: Request pushed on 2021-12-14T23:00:39.301-00:00, treated in 13.800us, completed in 12.279s 
Dec 14 23:00:52.819 - validator.block: block BLyUip8zZHDtHekjYHnksTzy1vRR3GbstQxawKW2CfLJhMYaUPf successfully validated
Dec 14 23:00:52.819 - validator.block: Request pushed on 2021-12-14T23:00:52.128-00:00, treated in 15.300us, completed in 690ms 
Dec 14 23:00:52.823 - node.store: the protocol table was updated: protocol PsithacaTTq3 (level 12) was
Dec 14 23:00:52.823 - node.store:   activated on block BLyUip8zZHDtHekjYHnksTzy1vRR3GbstQxawKW2CfLJhMYaUPf
Dec 14 23:00:52.823 - node.store:   (level 1943301)
Dec 14 23:00:52.866 - validator.chain: Update current head to BLyUip8zZHDtHekjYHnksTzy1vRR3GbstQxawKW2CfLJhMYaUPf (level 1943301, timestamp 2021-12-14T02:15:24-00:00, fitness 01::000000000013a705), same branch
Dec 14 23:00:52.866 - validator.chain: Request pushed on 2021-12-14T23:00:52.818-00:00, treated in 121us, completed in 47.642ms 

6. Bake a few more blocks with the following command - just in case. Note that baking account should not be specified. Each block takes ~30 seconds.

$ ./tezos-client -d /tmp/yes-wallet bake for --minimal-timestamp |& tee tezos-client.log.2
Dec 14 23:01:45.001 - 012-Psithaca.baker.actions: block BMX4rsx6B688AKdpUqwfiQiBmjwJVjTLj1Yi2HuXgNQLPE3Hnja injected for
Dec 14 23:01:45.001 - 012-Psithaca.baker.actions:   delegate baker_0 (tz1irJKkXS2DBWkU1NnmFQx1c1L7pbGg4yhk)
Injected block at minimal timestamp