[ISSUE #3510]🚀Implement Comprehensive High Availability (HA) Subsystem Architecture with Enhanced Service Infrastructure✨#3511
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…m Architecture with Enhanced Service Infrastructure✨
WalkthroughThis change refactors the High Availability (HA) subsystem in RocketMQ-Rust, introducing enhanced service infrastructure, dependency injection, and unified service management. It updates constructors, field types, and initialization patterns for core HA components, implements proper ownership semantics with Changes
Sequence Diagram(s)sequenceDiagram
participant Config as MessageStoreConfig
participant Store as LocalFileMessageStore
participant GeneralHA as GeneralHAService
participant DefaultHA as DefaultHAService
participant GroupTransfer as GroupTransferService
participant Notification as HAConnectionStateNotificationService
participant Client as DefaultHAClient
Store->>Config: get_message_store_config()
GeneralHA->>Config: Reads enable_controller_mode
alt enable_controller_mode == true
GeneralHA->>GeneralHA: Set auto_switch_ha_service
else enable_controller_mode == false
GeneralHA->>DefaultHA: Create DefaultHAService (ArcMut)
DefaultHA->>GeneralHA: GeneralHAService::new_with_default_ha_service
DefaultHA->>GroupTransfer: GroupTransferService::new(config, general_ha)
DefaultHA->>Notification: HAConnectionStateNotificationService::new(general_ha, store)
DefaultHA->>Config: Check broker_role
alt broker_role == Slave
DefaultHA->>Client: DefaultHAClient::new(store)
DefaultHA->>Client: Set as default HA client
end
end
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Pull Request Overview
Implements a comprehensive HA subsystem by introducing new service abstractions and refactoring existing HA components to use ArcMut wrappers and dynamic initialization.
- Exposed message store configuration via a public getter.
- Added two new services (
HAConnectionStateNotificationService,GroupTransferService) with constructors. - Refactored
GeneralHAService,GeneralHAClient,DefaultHAService, andDefaultHAClientto useArcMutand support dynamic initialization based on broker role.
Reviewed Changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| rocketmq-store/src/message_store/local_file_message_store.rs | Added get_message_store_config public accessor. |
| rocketmq-store/src/ha/ha_connection_state_notification_service.rs | Defined HAConnectionStateNotificationService struct with new method. |
| rocketmq-store/src/ha/group_transfer_service.rs | Defined GroupTransferService struct with new method. |
| rocketmq-store/src/ha/general_ha_service.rs | Refactored services to use ArcMut, added new/new_with_default and updated init. |
| rocketmq-store/src/ha/general_ha_client.rs | Wrapped default client in ArcMut and updated setter signature. |
| rocketmq-store/src/ha/default_ha_service.rs | Changed notification service to Option, updated init for slave/master roles. |
| rocketmq-store/src/ha/default_ha_client.rs | Changed constructor return type from Arc to ArcMut. |
Comments suppressed due to low confidence (3)
rocketmq-store/src/ha/general_ha_client.rs:24
- [nitpick] Field is named
auto_switch_ha_servicebut holds a client type. Consider renaming toauto_switch_ha_client(and/or wrapping it inArcMut) for consistency withdefault_ha_service.
auto_switch_ha_service: Option<AutoSwitchHAClient>,
rocketmq-store/src/ha/general_ha_service.rs:45
- Consider adding unit tests for
GeneralHAService::newandnew_with_default_ha_serviceto verify that the internal state fields are initialized as expected.
pub fn new() -> Self {
rocketmq-store/src/message_store/local_file_message_store.rs:535
- The indentation of this method (4 spaces) does not match the surrounding methods (6 spaces). Align it to improve readability.
pub fn get_message_store_config(&self) -> Arc<MessageStoreConfig> {
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Actionable comments posted: 2
🔭 Outside diff range comments (1)
rocketmq-store/src/ha/default_ha_service.rs (1)
1-32: Remove duplicate license header.The file contains duplicate Apache license headers (lines 1-16 and 17-32), which should be cleaned up to maintain code quality.
-/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */
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📒 Files selected for processing (7)
rocketmq-store/src/ha/default_ha_client.rs(1 hunks)rocketmq-store/src/ha/default_ha_service.rs(5 hunks)rocketmq-store/src/ha/general_ha_client.rs(2 hunks)rocketmq-store/src/ha/general_ha_service.rs(1 hunks)rocketmq-store/src/ha/group_transfer_service.rs(1 hunks)rocketmq-store/src/ha/ha_connection_state_notification_service.rs(1 hunks)rocketmq-store/src/message_store/local_file_message_store.rs(1 hunks)
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🔇 Additional comments (12)
rocketmq-store/src/message_store/local_file_message_store.rs (1)
534-537: LGTM! Clean configuration accessor method.The implementation correctly clones the Arc for thread-safe sharing of the configuration. This method enables HA service components to access the message store configuration safely.
rocketmq-store/src/ha/ha_connection_state_notification_service.rs (2)
17-21: Good dependency imports for HA integration.The imports correctly bring in the necessary types for HA service coordination and shared mutable ownership patterns.
22-37: Well-structured service with proper dependency injection.The service now holds references to both the HA service and message store, enabling it to coordinate HA connection state notifications effectively. The constructor follows standard patterns and properly initializes the dependencies.
rocketmq-store/src/ha/general_ha_client.rs (3)
17-17: Appropriate import for shared mutable ownership.The ArcMut import aligns with the refactoring to use mutable atomic reference counting for HA components.
23-23: Consistent ownership model change.The field type change from
DefaultHAClienttoArcMut<DefaultHAClient>enables shared mutable access, which is consistent with the broader HA subsystem refactoring.
41-43: Parameter type updated to match field type.The setter method parameter correctly matches the new field type, maintaining consistency in the ownership model.
rocketmq-store/src/ha/default_ha_client.rs (2)
113-113: Return type updated for mutable shared ownership.The constructor now returns
ArcMut<Self>instead ofArc<Self>, enabling mutable shared access to the DefaultHAClient instance. This aligns with the broader HA subsystem refactoring.
120-139: Constructor implementation updated consistently.The implementation correctly uses
ArcMut::new(Self { ... })instead ofArc::new(Self { ... }), maintaining the same initialization logic while supporting the new ownership model.rocketmq-store/src/ha/group_transfer_service.rs (1)
22-37: Well-designed transformation from stateless to stateful service.The refactoring from an empty struct to a concrete implementation with proper dependency injection is excellent. The use of
Arc<MessageStoreConfig>for shared configuration and direct ownership ofGeneralHAServicefollows good Rust patterns for service composition.rocketmq-store/src/ha/default_ha_service.rs (2)
69-69: Good architectural improvement with optional service initialization.The change to
Option<HAConnectionStateNotificationService>allows for more flexible initialization patterns and aligns well with the lazy initialization approach in theinitmethod.
98-115: Comprehensive HA service initialization logic.The
initmethod properly orchestrates the initialization of various HA components with appropriate dependency injection. The error handling forDefaultHAClientcreation and conditional initialization based on broker role is well-implemented.rocketmq-store/src/ha/general_ha_service.rs (1)
45-57: Well-designed constructors for flexible initialization.The new constructors provide good flexibility for different initialization scenarios. The default constructor and the specific constructor with
DefaultHAServicefollow clear patterns for dependency injection.
| let mut default_ha_service = ArcMut::new(DefaultHAService::new(message_store)); | ||
| let default_ha_service_clone = default_ha_service.clone(); | ||
| DefaultHAService::init(&mut default_ha_service, default_ha_service_clone)?; |
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Fix incorrect static method call.
The call to DefaultHAService::init appears to be treated as a static method, but based on the method signature in default_ha_service.rs (line 98), it's an instance method that should be called on the default_ha_service instance.
- let mut default_ha_service = ArcMut::new(DefaultHAService::new(message_store));
- let default_ha_service_clone = default_ha_service.clone();
- DefaultHAService::init(&mut default_ha_service, default_ha_service_clone)?;
+ let mut default_ha_service = ArcMut::new(DefaultHAService::new(message_store));
+ let default_ha_service_clone = default_ha_service.clone();
+ default_ha_service.init(default_ha_service_clone)?;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| let mut default_ha_service = ArcMut::new(DefaultHAService::new(message_store)); | |
| let default_ha_service_clone = default_ha_service.clone(); | |
| DefaultHAService::init(&mut default_ha_service, default_ha_service_clone)?; | |
| let mut default_ha_service = ArcMut::new(DefaultHAService::new(message_store)); | |
| let default_ha_service_clone = default_ha_service.clone(); | |
| default_ha_service.init(default_ha_service_clone)?; |
🤖 Prompt for AI Agents
In rocketmq-store/src/ha/general_ha_service.rs around lines 66 to 68, the method
init is incorrectly called as a static method on DefaultHAService. Instead, call
init as an instance method on the default_ha_service object by using
default_ha_service.init(...) with the appropriate arguments, adjusting the call
to match the instance method signature.
| use crate::store_error::HAError; | ||
| use crate::store_error::HAResult; | ||
|
|
||
| #[derive(Clone)] |
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🛠️ Refactor suggestion
Reconsider Clone derive for shared mutable state.
Adding Clone to a struct containing ArcMut fields can lead to unexpected behavior where multiple clones share the same mutable state. This could violate Rust's safety guarantees and make reasoning about state mutations difficult.
Consider removing the Clone derive or implementing it explicitly with proper documentation about the shared state implications:
-#[derive(Clone)]
pub struct GeneralHAService {🤖 Prompt for AI Agents
In rocketmq-store/src/ha/general_ha_service.rs at line 38, the struct is derived
with Clone while containing ArcMut fields, which can cause multiple clones to
share the same mutable state unexpectedly. Remove the automatic Clone derive and
instead implement Clone manually if needed, ensuring to document the shared
mutable state behavior clearly to avoid confusion and maintain safety
guarantees.
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #3511 +/- ##
==========================================
- Coverage 26.26% 26.25% -0.02%
==========================================
Files 552 554 +2
Lines 78400 78447 +47
==========================================
Hits 20593 20593
- Misses 57807 57854 +47 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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Which Issue(s) This PR Fixes(Closes)
Fixes #3510
Brief Description
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Summary by CodeRabbit
New Features
Refactor
Bug Fixes