jif d5e6526362 Scan the session index backwards for batch thread name lookups (#49297) ...

## Why

Batch thread name lookups read the entire append-only session index even when all requested names could be found near the end.

## What changed

Use `ReverseJsonlScanner` in `spawn_blocking` for `find_thread_names_by_ids`, stopping once every requested ID has a usable name. Preserve the latest nonempty, trimmed name for each ID while skipping malformed entries.

## Testing

Add regression coverage for renamed threads, whitespace-only names, Unicode, reads across chunk boundaries, malformed entries, a partial final write, and missing IDs.

GitOrigin-RevId: 2ab9254ba8b718fe3e02c47fc9b0de20c09fd10f

2026-09-29 16:16:39 +00:00

..

compression

Classify rollout read failures by reason and progress (#47565)

2026-09-23 15:01:19 +00:00

compression_tests.rs

Persist thread creator identity in rollouts and SQLite (#47113)

2026-09-21 21:22:01 +00:00

compression.rs

Classify rollout read failures by reason and progress (#47565)

2026-09-23 15:01:19 +00:00

config.rs

Honor the configured SQLite home across state consumers (#34994)

2026-07-23 19:19:35 +00:00

lib.rs

Resume model context from the latest compaction boundary (#47365)

2026-09-22 21:17:08 +00:00

list.rs

Keep archived threads with empty previews visible in listings (#48199)

2026-09-25 20:11:47 +00:00

maintenance.rs

Add legacy rollout migration to paginated history (#37175)

2026-08-05 22:57:27 +00:00

metadata_tests.rs

Persist resume metadata in compaction checkpoints (#47323)

2026-09-22 16:35:30 +00:00

metadata.rs

Persist thread creator identity in rollouts and SQLite (#47113)

2026-09-21 21:22:01 +00:00

model_context.rs

Resume model context from the latest compaction boundary (#47365)

2026-09-22 21:17:08 +00:00

ordinal.rs

Route rollout reads through the canonical JSON decoder (#42378)

2026-09-02 22:45:19 +00:00

persistence_metrics_tests.rs

Add opt-in structured errors for Guardian circuit-breaker interruptions (#48796)

2026-09-27 22:05:19 +00:00

persistence_metrics.rs

Support durable reasoning configuration updates (#42328)

2026-09-02 18:52:44 +00:00

policy.rs

Support durable reasoning configuration updates (#42328)

2026-09-02 18:52:44 +00:00

recorder_tests.rs

Keep archived threads with empty previews visible in listings (#48199)

2026-09-25 20:11:47 +00:00

recorder.rs

Persist thread creator identity in rollouts and SQLite (#47113)

2026-09-21 21:22:01 +00:00

reverse_jsonl_scanner_tests.rs

Preserve legacy semantics during rollout migration (#37191)

2026-08-06 00:54:14 +00:00

reverse_jsonl_scanner.rs

Route rollout reads through the canonical JSON decoder (#42378)

2026-09-02 22:45:19 +00:00

rollout_file_name_tests.rs

Distinguish rollout IDs from thread IDs (#38127)

2026-08-12 05:20:32 +00:00

rollout_file_name.rs

Distinguish rollout IDs from thread IDs (#38127)

2026-08-12 05:20:32 +00:00

rollout_reference_index_tests.rs

Limit archive rollout reads to requested threads (#43494)

2026-09-07 15:19:21 +00:00

rollout_reference_index.rs

Limit archive rollout reads to requested threads (#43494)

2026-09-07 15:19:21 +00:00

search.rs

Suppress Windows console windows for background subprocesses (#49164)

2026-09-29 04:38:37 +00:00

seekable_reader_tests.rs

Support compression for shared rollout lineages (#41357)

2026-08-28 16:04:26 +00:00

seekable_reader.rs

Attach compressed rollouts to diagnostic reports as JSONL (#44175)

2026-09-09 15:12:19 +00:00

session_index_tests.rs

Scan the session index backwards for batch thread name lookups (#49297)

2026-09-29 16:16:39 +00:00

session_index.rs

Scan the session index backwards for batch thread name lookups (#49297)

2026-09-29 16:16:39 +00:00

sqlite_metrics.rs

Add telemetry for SQLite log persistence (#40726)

2026-08-25 22:46:49 +00:00

state_db_tests.rs

Persist thread creator identity in rollouts and SQLite (#47113)

2026-09-21 21:22:01 +00:00

state_db.rs

Add experimental app-server project APIs (#38940)

2026-08-17 04:01:37 +00:00

tests.rs

Use compact display metadata for Guardian review threads (#47302)

2026-09-22 15:02:54 +00:00

writer_lock_tests.rs

Coordinate rollout compression with active thread writers (#44138)

2026-09-09 12:30:07 +00:00

writer_lock.rs

Coordinate rollout compression with active thread writers (#44138)

2026-09-09 12:30:07 +00:00