From 7da1069e30b4e1f63a678c636bbc8f10ddb3278c Mon Sep 17 00:00:00 2001 From: Andrei Sandu <54316454+sandreim@users.noreply.github.com> Date: Fri, 31 May 2024 09:34:43 +0300 Subject: [PATCH] collator-protocol: remove `elastic-scaling-experimental` feature (#4595) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Validators already have been upgraded so they could already receive the new `CollationWithParentHeadData` response when fetching collation. However this is only sent by collators when the parachain has more than 1 core is assigned. TODO: - [x] PRDoc --------- Signed-off-by: Andrei Sandu Co-authored-by: Bastian Köcher --- cumulus/polkadot-parachain/Cargo.toml | 1 - .../node/network/collator-protocol/Cargo.toml | 1 - .../src/collator_side/mod.rs | 8 ------ .../src/collator_side/tests/mod.rs | 1 - .../tests/prospective_parachains.rs | 1 - polkadot/node/service/Cargo.toml | 4 --- .../test-parachains/adder/collator/Cargo.toml | 2 +- .../undying/collator/Cargo.toml | 2 +- prdoc/pr_4595.prdoc | 25 +++++++++++++++++++ 9 files changed, 27 insertions(+), 18 deletions(-) create mode 100644 prdoc/pr_4595.prdoc diff --git a/cumulus/polkadot-parachain/Cargo.toml b/cumulus/polkadot-parachain/Cargo.toml index a22606edb6c5c..def7d95fd5663 100644 --- a/cumulus/polkadot-parachain/Cargo.toml +++ b/cumulus/polkadot-parachain/Cargo.toml @@ -172,4 +172,3 @@ try-runtime = [ "sp-runtime/try-runtime", ] fast-runtime = ["bridge-hub-rococo-runtime/fast-runtime"] -elastic-scaling-experimental = ["polkadot-service/elastic-scaling-experimental"] diff --git a/polkadot/node/network/collator-protocol/Cargo.toml b/polkadot/node/network/collator-protocol/Cargo.toml index c02999a59b5a9..d7291552738db 100644 --- a/polkadot/node/network/collator-protocol/Cargo.toml +++ b/polkadot/node/network/collator-protocol/Cargo.toml @@ -45,4 +45,3 @@ polkadot-primitives-test-helpers = { path = "../../../primitives/test-helpers" } [features] default = [] -elastic-scaling-experimental = [] diff --git a/polkadot/node/network/collator-protocol/src/collator_side/mod.rs b/polkadot/node/network/collator-protocol/src/collator_side/mod.rs index 88375d5830904..80a85420b392b 100644 --- a/polkadot/node/network/collator-protocol/src/collator_side/mod.rs +++ b/polkadot/node/network/collator-protocol/src/collator_side/mod.rs @@ -924,7 +924,6 @@ async fn send_collation( let peer_id = request.peer_id(); let candidate_hash = receipt.hash(); - #[cfg(feature = "elastic-scaling-experimental")] let result = match parent_head_data { ParentHeadData::WithData { head_data, .. } => Ok(request_v2::CollationFetchingResponse::CollationWithParentHeadData { @@ -935,13 +934,6 @@ async fn send_collation( ParentHeadData::OnlyHash(_) => Ok(request_v1::CollationFetchingResponse::Collation(receipt, pov)), }; - #[cfg(not(feature = "elastic-scaling-experimental"))] - let result = { - // suppress unused warning - let _parent_head_data = parent_head_data; - - Ok(request_v1::CollationFetchingResponse::Collation(receipt, pov)) - }; let response = OutgoingResponse { result, reputation_changes: Vec::new(), sent_feedback: Some(tx) }; diff --git a/polkadot/node/network/collator-protocol/src/collator_side/tests/mod.rs b/polkadot/node/network/collator-protocol/src/collator_side/tests/mod.rs index 689e03ce4737b..412792bbecfba 100644 --- a/polkadot/node/network/collator-protocol/src/collator_side/tests/mod.rs +++ b/polkadot/node/network/collator-protocol/src/collator_side/tests/mod.rs @@ -144,7 +144,6 @@ impl Default for TestState { impl TestState { /// Adds a few more scheduled cores to the state for the same para id /// compared to the default. - #[cfg(feature = "elastic-scaling-experimental")] pub fn with_elastic_scaling() -> Self { let mut state = Self::default(); let para_id = state.para_id; diff --git a/polkadot/node/network/collator-protocol/src/collator_side/tests/prospective_parachains.rs b/polkadot/node/network/collator-protocol/src/collator_side/tests/prospective_parachains.rs index 2a147aef69e2f..0a0a85fb1f275 100644 --- a/polkadot/node/network/collator-protocol/src/collator_side/tests/prospective_parachains.rs +++ b/polkadot/node/network/collator-protocol/src/collator_side/tests/prospective_parachains.rs @@ -443,7 +443,6 @@ fn distribute_collation_up_to_limit() { /// Tests that collator send the parent head data in /// case the para is assigned to multiple cores (elastic scaling). #[test] -#[cfg(feature = "elastic-scaling-experimental")] fn send_parent_head_data_for_elastic_scaling() { let test_state = TestState::with_elastic_scaling(); diff --git a/polkadot/node/service/Cargo.toml b/polkadot/node/service/Cargo.toml index 37836f134bda6..0dfdf926b1b09 100644 --- a/polkadot/node/service/Cargo.toml +++ b/polkadot/node/service/Cargo.toml @@ -238,7 +238,3 @@ runtime-metrics = [ "rococo-runtime?/runtime-metrics", "westend-runtime?/runtime-metrics", ] - -elastic-scaling-experimental = [ - "polkadot-collator-protocol?/elastic-scaling-experimental", -] diff --git a/polkadot/parachain/test-parachains/adder/collator/Cargo.toml b/polkadot/parachain/test-parachains/adder/collator/Cargo.toml index dbc8507d599bb..f9aaab74debd8 100644 --- a/polkadot/parachain/test-parachains/adder/collator/Cargo.toml +++ b/polkadot/parachain/test-parachains/adder/collator/Cargo.toml @@ -24,7 +24,7 @@ log = { workspace = true, default-features = true } test-parachain-adder = { path = ".." } polkadot-primitives = { path = "../../../../primitives" } polkadot-cli = { path = "../../../../cli" } -polkadot-service = { path = "../../../../node/service", features = ["elastic-scaling-experimental", "rococo-native"] } +polkadot-service = { path = "../../../../node/service", features = ["rococo-native"] } polkadot-node-primitives = { path = "../../../../node/primitives" } polkadot-node-subsystem = { path = "../../../../node/subsystem" } diff --git a/polkadot/parachain/test-parachains/undying/collator/Cargo.toml b/polkadot/parachain/test-parachains/undying/collator/Cargo.toml index 28efdbbf242f7..08d1e74d87983 100644 --- a/polkadot/parachain/test-parachains/undying/collator/Cargo.toml +++ b/polkadot/parachain/test-parachains/undying/collator/Cargo.toml @@ -24,7 +24,7 @@ log = { workspace = true, default-features = true } test-parachain-undying = { path = ".." } polkadot-primitives = { path = "../../../../primitives" } polkadot-cli = { path = "../../../../cli" } -polkadot-service = { path = "../../../../node/service", features = ["elastic-scaling-experimental", "rococo-native"] } +polkadot-service = { path = "../../../../node/service", features = ["rococo-native"] } polkadot-node-primitives = { path = "../../../../node/primitives" } polkadot-node-subsystem = { path = "../../../../node/subsystem" } diff --git a/prdoc/pr_4595.prdoc b/prdoc/pr_4595.prdoc new file mode 100644 index 0000000000000..8baa6e8a91f3c --- /dev/null +++ b/prdoc/pr_4595.prdoc @@ -0,0 +1,25 @@ +title: "Remove `elastic-scaling-experimental` feature flag" + +doc: + - audience: Node Dev + description: | + The feature was masking the ability of collators to respond with `CollationWithParentHeadData` + to validator collation fetch requests, a requirement for elastic scaling. + Please note that `CollationWithParentHeadData` is only sent by collators of parachains with + multiple cores assigned, otherwise collators must respond with `CollationFetchingResponse::Collation` + - audience: Node Operator + description: | + This change enables elastic scaling support in collators. Please upgrade to latest version, + otherwise validator nodes will not be able to back elastic parachain blocks leading to + missed rewards. + +crates: + - name: polkadot-collator-protocol + bump: major + validate: false + - name: polkadot-service + bump: major + validate: false + - name: polkadot-parachain-bin + bump: minor + validate: false