aws: dynamodb_cdc send to close channel bug fix

[squiidz]

No description provided.

[claude]

Commits

1. aws: dynamodb_cdc send to close channel bug fix — message should use imperative mood per commit policy. e.g., aws: fix send to closed channel in dynamodb_cdc

Review
Clean fix for a send-on-closed-channel race in the DynamoDB CDC shard coordinator. The new sync.WaitGroup correctly ensures all shard reader goroutines finish before msgChan is closed.

LGTM

[mmatczuk]

Modernize, otherwise LGTM

[claude]

Commits

1. aws: dynamodb_cdc send to close channel bug fix — message does not use imperative mood. Should be something like aws: fix send-on-closed-channel in dynamodb_cdc. See commit policy: messages must use imperative mood (e.g., "fix", not "bug fix").

Review
The fix correctly ensures shard reader goroutines complete before closing d.msgChan, preventing a send-on-closed-channel panic. Uses sync.WaitGroup.Go to track goroutine lifecycle and defers cleanup in the right order: cancel → wait → close.

LGTM