feat: parallel Loki queries with configurable thread count#27
Merged
noexecstack merged 2 commits intomainfrom Apr 1, 2026
Merged
feat: parallel Loki queries with configurable thread count#27noexecstack merged 2 commits intomainfrom
noexecstack merged 2 commits intomainfrom
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Split the Loki query time range into parallel segments fetched via ThreadPoolExecutor for significantly faster ingestion of large flow volumes. Add --loki-threads flag (default: 4) and restore default batch size to 5000 (the 120s timeout handles it). Bump to 0.11.0.
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Summary
_loki_fetch_chunk()helper that fetches a single time segment with cursor-based pagination_read_flows_loki()to split the query time range into N parallel segments usingconcurrent.futures.ThreadPoolExecutor--loki-threadsflag (default: 4) to control parallelism--loki-limitfrom 1000 back to 5000 (the 120s timeout is sufficient)Performance
For ~200k flows over a 1h window, expected improvement is roughly 10-20x (from ~6 minutes to ~20-40 seconds) due to:
Test plan
threads=1(preserving single-threaded semantics)test_parallel_merges_segmentsverifies multi-threaded fetch, timestamp ordering, and monotonic linenos