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[ISSUE #2062] Adding #[inline] for QueueOffsetOperator methods #2063

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merged 1 commit into from
Jan 3, 2025

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@nakul-py nakul-py commented Jan 3, 2025

Which Issue(s) This PR Fixes(Closes)

Add #[inline] for QueueOffsetOperator methods

Summary by CodeRabbit

  • New Features
    • Enhanced queue offset management with new methods for tracking, retrieving, and manipulating topic queue offsets
    • Added support for handling different types of queue offsets (standard, batch, and LMQ)
    • Introduced methods for setting, updating, and removing queue offset tables

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coderabbitai bot commented Jan 3, 2025

Walkthrough

The pull request enhances the QueueOffsetOperator struct in the RocketMQ store module by adding multiple new methods for managing queue offsets. These methods provide functionality to retrieve, update, and manipulate offsets for different types of queues, including topic queues, batch queues, and LMQ (Lightweight Message Queue) queues. The implementation uses thread-safe Arc<parking_lot::Mutex<HashMap>> to manage concurrent access to queue offset data.

Changes

File Change Summary
rocketmq-store/src/queue/queue_offset_operator.rs - Added new constructor new()
- Added multiple methods for queue offset management
- Applied #[inline] attribute to methods
- Introduced thread-safe offset tracking for different queue types

Assessment against linked issues

Objective Addressed Explanation
Add #[inline] to QueueOffsetOperator methods [#2062]

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enhancement, approved, auto merge, ready to review, waiting-review, AI review first

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  • rocketmq-rust-bot

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🔊@nakul-py 🚀Thanks for your contribution🎉!

💡CodeRabbit(AI) will review your code first🔥!

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🚨The code review suggestions from CodeRabbit are to be used as a reference only, and the PR submitter can decide whether to make changes based on their own judgment. Ultimately, the project management personnel will conduct the final code review💥.

@rocketmq-rust-robot rocketmq-rust-robot added the enhancement⚡️ New feature or request label Jan 3, 2025
@rocketmq-rust-robot rocketmq-rust-robot added this to the v0.4.0 milestone Jan 3, 2025
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codecov bot commented Jan 3, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.37%. Comparing base (3dda72b) to head (5247f7e).
Report is 2 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #2063   +/-   ##
=======================================
  Coverage   28.37%   28.37%           
=======================================
  Files         488      488           
  Lines       69250    69250           
=======================================
  Hits        19651    19651           
  Misses      49599    49599           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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LGTM

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Actionable comments posted: 0

🧹 Nitpick comments (3)
rocketmq-store/src/queue/queue_offset_operator.rs (3)

47-52: Slight overhead from consuming CheetahString
The parameter is taken by value instead of by reference, causing ownership transfer even if you only need a read. You might consider accepting a &CheetahString if you only need to read or insert it.

- pub fn get_queue_offset(&self, topic_queue_key: CheetahString) -> i64 {
+ pub fn get_queue_offset(&self, topic_queue_key: &CheetahString) -> i64 {

Line range hint 121-136: Locking each table separately
Note that removing from three tables locks each independently. If atomic removal is needed across tables, consider a single lock or ordering. Current approach is simpler and likely enough for many use cases.


Line range hint 143-153: Filtering out keys that do not contain "lmq"
Implementation correctly inserts only keys containing "lmq". Consider clarifying whether partial matches or case sensitivity matter.

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📥 Commits

Reviewing files that changed from the base of the PR and between 38927f2 and 5247f7e.

📒 Files selected for processing (1)
  • rocketmq-store/src/queue/queue_offset_operator.rs (4 hunks)
🔇 Additional comments (13)
rocketmq-store/src/queue/queue_offset_operator.rs (13)

31-34: Inlined Default implementation looks fine
Marking the default constructor with #[inline] is reasonable, as it delegates to new() and suggests inlining to reduce call overhead.


Line range hint 38-46: Constructors with separate Arc<Mutex<>> fields
Using separate tables for different queue categories provides flexibility. This approach is clear and straightforward.


54-59: Avoiding repeated locking
Getting the offset with a single lock is fine. Implementation here is succinct and correct.


61-67: Handling negative or zero increases
The method adds the message count to the offset unconditionally. Confirm whether negative or zero increments are valid use cases.


69-74: Ownership usage
update_queue_offset clones the key. That is fine if the caller is responsible for the original key.


76-81: Consistent approach for batch offsets
Implementation mirrors the logic for topic queue offsets, ensuring uniform usage across all queue types.


83-89: Parallel approach for batch offsets
Storing and incrementing the batch queue offset with a single lock is consistent and clear.


91-96: LMQ offset usage
Follows the same pattern as the other offsets. Code is consistent and straightforward.


98-103: Next LMQ offset retrieval
Returning Option<i64> is appropriate here, allowing the caller to handle an absent key gracefully.


105-111: Ensure valid message_num
Like other increment methods, ensure negative increments are treated as intended.


113-119: current_queue_offset returns zero if missing
This defaulting to zero behavior is predictable. Good approach for simplifying caller logic.


138-141: Replacing the topic queue table
Atomic replacement via the lock is concise. No issues here.


Line range hint 154-158: Consistent atomic table replacement
Same pattern for the batch table as for topic and LMQ. Straightforward design.

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LGTM

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[Enhancement⚡️] Add #[inline] for QueueOffsetOperator methods
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