Charlie Marsh 5aa92804d2 Batch rollout listing scans on cancellable blocking workers (#49694) ...

## What changed

Move directory enumeration and candidate metadata lookups into blocking workers, batching updated-time candidate collection into one worker per scan. Check cancellation between entries and metadata lookups so dropping the async waiter stops further scanning.

Share synchronous rollout metadata resolution with the async helper, preserving plain-file precedence over compressed siblings. Retain scan limits, stable file ordering, and directory-level early stopping for creation-time listings.

## Testing

Add tests for cancellation during directory enumeration and candidate discovery in both flat and date-partitioned layouts, including plain-sibling metadata precedence and filtering of unrelated files, directories, and symlinks.

GitOrigin-RevId: 324289003b29a7d2b3220da03e3c002ab5e23eec

2026-09-30 18:03:48 +00:00

..

src

Batch rollout listing scans on cancellable blocking workers (#49694)

2026-09-30 18:03:48 +00:00

BUILD.bazel

Extract rollout into its own crate (#15548)

2026-03-24 18:10:53 -07:00

Cargo.toml

Use memrchr to find newlines in reverse JSONL scans (#49444)

2026-09-30 02:19:47 +00:00