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chore: Readd semaphore#452

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adityachoudhari26 merged 4 commits intomainfrom
readd-mutex
Apr 5, 2025
Merged

chore: Readd semaphore#452
adityachoudhari26 merged 4 commits intomainfrom
readd-mutex

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@adityachoudhari26 adityachoudhari26 commented Apr 4, 2025

Summary by CodeRabbit

  • New Features

    • Introduced enhanced Redis integration to support improved background processing and reliable concurrency management through a new locking mechanism.
    • Added a new Redis instance for managing connections.
    • Implemented a mutex locking mechanism for better concurrency control.
  • Chores

    • Updated dependency management with additional Redis-related libraries and refined module configurations for improved consistency.

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Review failed

The pull request is closed.

Walkthrough

The changes introduce new Redis-related dependencies and functionality in the event worker module. Two dependencies, ioredis and redis-semaphore, are added to the package configuration. A new Redis client file is created to initialize and export a Redis instance using environment variables. A mutex utility file is also added to manage Redis-based locks, and new type imports are included in the release repository file to enhance type definitions.

Changes

File(s) Change Summary
apps/event-worker/package.json Added dependencies: "ioredis": "^5.4.1" and "redis-semaphore": "^5.6.2".
apps/event-worker/src/redis.ts New file that imports IORedis and config; exports a Redis instance initialized with env.REDIS_URL and maxRetriesPerRequest set to null.
apps/event-worker/src/workers/mutex.ts New file defining the ReleaseRepositoryMutex class with methods for locking and unlocking a Redis mutex based on repository identifiers.
packages/rule-engine/src/releases/repositories/release-repository.ts Added type imports: Release, ReleaseRepository, and ReleaseWithId from ./types.js.

Possibly related PRs

Poem

In the burrow of code, I hop with glee,
Redis carrots added for you and me.
Mutex locks firm, holding tight the key,
Our code digs deep like roots in the tree.
With each new line, our tunes run free.
Hop on—let's code, wild and fancy! 🐇💻


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Reviewing files that changed from the base of the PR and between 2865b6d and 3b3b046.

📒 Files selected for processing (1)
  • packages/rule-engine/src/releases/repositories/release-repository.ts (1 hunks)

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Actionable comments posted: 0

🧹 Nitpick comments (1)
apps/event-worker/src/workers/mutex.ts (1)

14-19: Consider adding lock acquisition timeout.

The mutex is correctly instantiated with a unique key based on repository identifiers. However, there's no timeout specified for lock acquisition, which could lead to indefinite waiting.

 constructor(releaseTargetIdentifier: ReleaseTargetIdentifier) {
   const key = `release-repository-mutex-${releaseTargetIdentifier.deploymentId}-${releaseTargetIdentifier.resourceId}-${releaseTargetIdentifier.environmentId}`;
-  this.mutex = new RedisSemaphoreMutex(redis, key, {});
+  this.mutex = new RedisSemaphoreMutex(redis, key, { 
+    acquireTimeout: 30000 // 30 seconds timeout for lock acquisition
+  });
 }
📜 Review details

Configuration used: .coderabbit.yaml
Review profile: CHILL
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📥 Commits

Reviewing files that changed from the base of the PR and between 2ad69bd and b4f6d4d.

⛔ Files ignored due to path filters (1)
  • pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml
📒 Files selected for processing (3)
  • apps/event-worker/package.json (1 hunks)
  • apps/event-worker/src/redis.ts (1 hunks)
  • apps/event-worker/src/workers/mutex.ts (1 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
`**/*.{ts,tsx}`: **Note on Error Handling:** Avoid strict enforcement of try/catch blocks. Code may use early returns, Promise chains (.then().catch()), or other patterns for error...

**/*.{ts,tsx}: Note on Error Handling:
Avoid strict enforcement of try/catch blocks. Code may use early returns, Promise chains (.then().catch()), or other patterns for error handling. These are acceptable as long as they maintain clarity and predictability.

  • apps/event-worker/src/redis.ts
  • apps/event-worker/src/workers/mutex.ts
🧬 Code Definitions (1)
apps/event-worker/src/workers/mutex.ts (1)
apps/event-worker/src/redis.ts (1)
  • redis (5-7)
⏰ Context from checks skipped due to timeout of 90000ms (3)
  • GitHub Check: Typecheck
  • GitHub Check: Lint
  • GitHub Check: build (linux/amd64)
🔇 Additional comments (6)
apps/event-worker/src/redis.ts (1)

1-7: Simple and clear Redis client setup.

The Redis client is correctly initialized with the URL from environment configuration. Setting maxRetriesPerRequest to null means IORedis will retry indefinitely for each request, which ensures operations will eventually complete when Redis becomes available.

apps/event-worker/package.json (1)

45-45: Appropriate dependency additions.

The addition of ioredis and redis-semaphore dependencies supports the new Redis functionality and mutex implementation. Using caret versioning (^) allows for compatible updates while maintaining a minimum version requirement.

Also applies to: 49-49

apps/event-worker/src/workers/mutex.ts (4)

1-6: Clear imports with appropriate types.

The imports correctly bring in the necessary types and implementations from external libraries and the local Redis client.


7-12: Well-designed static factory method.

The static lock method provides a convenient way to create and acquire a mutex in one operation, following the factory pattern.


21-24: Good defensive check before lock acquisition.

The code correctly checks if the mutex is already acquired before attempting to acquire it.


26-29: Good defensive check before lock release.

The code correctly checks if the mutex is not acquired before attempting to release it.

adityachoudhari26 and others added 3 commits April 4, 2025 16:19
Signed-off-by: Aditya Choudhari <48932219+adityachoudhari26@users.noreply.github.com>
@adityachoudhari26 adityachoudhari26 merged commit 64ce3c6 into main Apr 5, 2025
0 of 9 checks passed
@adityachoudhari26 adityachoudhari26 deleted the readd-mutex branch April 5, 2025 04:56
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