(DAL) Potential fix for dal memory leak #2102
Conversation
WalkthroughWalkthroughThe changes enhance the flexibility and efficiency of the subscription management system within the application. By shifting from boolean values to Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Hub
participant Controller
Client->>Controller: Subscribe
Controller->>Hub: Update subscriptions
Hub-->>Controller: Acknowledge subscription
Hub->>Hub: Start cleanupJob
Hub->>Hub: Run cleanup
Hub-->>Client: Remove inactive subscriptions
Poem
Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media? TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (invoked as PR comments)
Additionally, you can add CodeRabbit Configuration File (
|
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 0
Outside diff range, codebase verification and nitpick comments (2)
node/pkg/dal/api/types.go (2)
13-13: Consider makingCleanupIntervalconfigurable.The interval for cleanup is set to one hour. Depending on the use case, it might be beneficial to allow this value to be configurable to suit different environments or requirements.
25-25: Ensure type safety inclientsmap usage.The change to
map[string]anyin theclientsmap increases flexibility but introduces potential type safety issues. The current code does not show type assertions or checks for the values in this map, which could lead to runtime errors. Ensure that all interactions with this map properly handle theanytype, either through type assertions or by using type-agnostic methods.
- File:
node/pkg/dal/api/controller.go- File:
node/pkg/dal/api/hub.goAnalysis chain
Ensure type safety with
map[string]any.Changing the map value type to
anyincreases flexibility but can lead to type safety issues. Ensure that all interactions with this map are properly type-checked to avoid runtime errors.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the usage of the `clients` map to ensure type safety. # Test: Search for all occurrences of `clients` and check for type assertions or checks. rg --type go -A 5 $'clients'Length of output: 13116
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (3)
- node/pkg/dal/api/controller.go (2 hunks)
- node/pkg/dal/api/hub.go (5 hunks)
- node/pkg/dal/api/types.go (2 hunks)
Additional comments not posted (3)
node/pkg/dal/api/hub.go (2)
189-201: Verify context handling incleanupJob.Ensure that the context cancellation is handled correctly to avoid potential goroutine leaks. The current implementation seems to handle it, but verify the context is properly propagated and used.
Verification successful
Context handling in
cleanupJobis properly implemented.The
cleanupJobmethod is correctly using the context to handle cancellation, ensuring that goroutines are not leaked. The context is passed to the function and used in a select statement, which is a standard practice for managing goroutine lifecycles.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the context usage in `cleanupJob` to ensure proper cancellation. # Test: Search for all occurrences of `cleanupJob` to verify context propagation. rg --type go -A 5 $'cleanupJob'Length of output: 538
203-225: Verify concurrency handling incleanup.The
cleanupmethod modifies shared maps. Ensure that the locking mechanism is correctly implemented to prevent data races and maintain data integrity.Verification successful
Concurrency handling in
cleanupis correctly implemented.The
cleanupmethod uses a mutex lock to ensure thread safety while modifying shared maps, preventing data races during concurrent execution. The locking mechanism is properly implemented.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the locking mechanism in `cleanup` to prevent data races. # Test: Search for all occurrences of `cleanup` to verify proper locking. rg --type go -A 5 $'cleanup'Length of output: 74632
node/pkg/dal/api/controller.go (1)
Line range hint
77-86:
Verify dependent logic forsubscriptionsmap change.Changing the map value to
struct{}{}optimizes memory usage but may affect how subscription status is checked. Ensure all dependent logic is updated to handle this change.Verification successful
Verification complete:
subscriptionsmap logic is consistent with changes.The change from
map[string]booltomap[string]anyusingstruct{}{}optimizes memory usage without affecting the logic that checks or manipulates the map. The key operations involving thesubscriptionsmap, such as checking for existence and iterating over keys, are correctly handled in the codebase. No further updates are necessary.
node/pkg/dal/api/controller.go: Logic for adding and checking subscriptions.node/pkg/dal/api/hub.go: Logic for iterating and checking subscriptions.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the usage of `subscriptions` map to ensure logic is updated. # Test: Search for all occurrences of `subscriptions` to verify logic handling. rg --type go -A 5 $'subscriptions'Length of output: 18863
Description
Cleanup job will remove invalid entries and reassign every 1 hour
reference: golang/go#20135
Type of change
Please delete options that are not relevant.
Checklist before requesting a review
Deployment