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chainHead: Limit ongoing operations (#14699)

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* chainHead/api: Make storage/body/call pure RPC methods

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Add mpsc channel between RPC methods

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/subscriptions: Extract mpsc::Sender via BlockGuard

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/subscriptions: Generate and provide the method operation ID

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Generate `chainHead_body` response

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Generate `chainHead_call` response

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Generate `chainHead_storage` responses

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Propagate responses of methods to chainHead_follow

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Adjust `chainHead_body` responses

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Adjust `chainHead_call` responses

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Adjust `chainHead_call` responses

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Ensure unique operation IDs across methods

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/events: Remove old method events

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/subscriptions: Add limit helper

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/subscription: Expose limits to `BlockGuard`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Adjust testing to ongoing operations

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Make limits configurable via `ChainHeadConfig`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Adjust testing to `ChainHeadConfig`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/tests: Ensure operation limits discards items

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Improve documentation

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Rename `OngoingOperations` -> `LimitOperations`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Rename reserve -> reserve_at_most

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead: Use duration const instead of u64

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* chainHead/subscription: Use tokio::sync::Semaphore for limits

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Update client/rpc-spec-v2/src/chain_head/subscription/inner.rs

Co-authored-by: Sebastian Kunert <skunert49@gmail.com>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Co-authored-by: parity-processbot <>
Co-authored-by: Sebastian Kunert <skunert49@gmail.com>
This commit is contained in:
Alexandru Vasile
2023-08-15 15:17:41 +03:00
committed by GitHub
parent 0146cb2ffe
commit 744b783a7d
8 changed files with 394 additions and 100 deletions
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substrate/client/service/src/builder.rs
+3 -18
View File
@@ -74,11 +74,7 @@ use sp_consensus::block_validation::{
use sp_core::traits::{CodeExecutor, SpawnNamed};
use sp_keystore::KeystorePtr;
use sp_runtime::traits::{Block as BlockT, BlockIdTo, NumberFor, Zero};
use std::{
str::FromStr,
sync::Arc,
time::{Duration, SystemTime},
};
use std::{str::FromStr, sync::Arc, time::SystemTime};
/// Full client type.
pub type TFullClient<TBl, TRtApi, TExec> =
@@ -636,24 +632,13 @@ where
)
.into_rpc();
// Maximum pinned blocks across all connections.
// This number is large enough to consider immediate blocks.
// Note: This should never exceed the `PINNING_CACHE_SIZE` from client/db.
const MAX_PINNED_BLOCKS: usize = 512;
// Any block of any subscription should not be pinned more than
// this constant. When a subscription contains a block older than this,
// the subscription becomes subject to termination.
// Note: This should be enough for immediate blocks.
const MAX_PINNED_SECONDS: u64 = 60;
let chain_head_v2 = sc_rpc_spec_v2::chain_head::ChainHead::new(
client.clone(),
backend.clone(),
task_executor.clone(),
client.info().genesis_hash,
MAX_PINNED_BLOCKS,
Duration::from_secs(MAX_PINNED_SECONDS),
// Defaults to sensible limits for the `ChainHead`.
sc_rpc_spec_v2::chain_head::ChainHeadConfig::default(),
)
.into_rpc();