Owen Lin 6256a7ccc7 Make thread history projection resilient to malformed rollouts (#36188) ...

## Why

A failed rollout append can leave a rejected line before a valid same-ordinal
retry. Advancing the byte checkpoint past that line without also advancing the
ordinal checkpoint can prevent subsequent history from being projected.

## What changed

- Defer rejected and unknown rollout lines until a later valid ordinal shows
  whether they were replaced by a retry or consumed an ordinal.
- Advance skipped ordinal ranges together with the durable byte checkpoint,
  while rejecting gaps that cannot be explained by rejected lines.
- Prefer item event timestamps and parse the rollout timestamp only when an
  item needs it as a fallback.

## Testing

Added coverage for same-ordinal retries, inferred ordinal gaps, unknown and
malformed records, invalid fallback timestamps, and unexplained gaps.

GitOrigin-RevId: 374beda316c605d562bd9526abed19916598d69f

2026-07-30 16:49:12 +00:00

..

local

Make thread history projection resilient to malformed rollouts (#36188)

2026-07-30 16:49:12 +00:00

error.rs

feat(app-server): add history_mode to thread (#29927)

2026-06-26 09:12:42 -07:00

in_memory.rs

Add persisted manual ordering for thread sections (#36007)

2026-07-29 18:37:22 +00:00

lib.rs

Add persisted manual ordering for thread sections (#36007)

2026-07-29 18:37:22 +00:00

live_thread.rs

Preserve paginated thread metadata across resumes (#35678)

2026-07-27 22:12:15 +00:00

store.rs

Add persisted manual ordering for thread sections (#36007)

2026-07-29 18:37:22 +00:00

thread_metadata_sync.rs

Preserve paginated thread metadata across resumes (#35678)

2026-07-27 22:12:15 +00:00

types.rs

Add persisted manual ordering for thread sections (#36007)

2026-07-29 18:37:22 +00:00