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Chris LuandClaude Fable 5.1
b5951c5c7c
* seaweed-vector: build and extend the vector index weed_lance_worker::vector_index builds an IVF_FLAT index in the metric the table was created with, sizes partitions from the row count, and extends an index with a new segment or a retrain; the core crate re-exports it and adds the probes a query spends. Tests cover coverage after build, append, retrain and compaction. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector-cli: index build and index optimize Logs go to stderr so stdout stays the JSON a caller parses. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * test/s3vectors: PERF_INDEX builds the index before the timed queries The cluster fixture hands out its catalog URL, the Makefile builds weed-vector-cli, and the perf suite builds the index after ingest and reports the build time and segment count. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: probe a tenth of the index's partitions, more under a filter A query that names no probe count gets one from the index's partition count. Lance searches at least that many partitions, and under a prefilter keeps going until it has k rows; without one it stops there. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector: --nprobes overrides the probe policy Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: test that a build takes the table's metric Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * test/s3vectors: make clean removes weed-vector-cli Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: measure recall with vectors the table does not hold Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector: keep the read cache's doc comment on with_read_cache Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: optimize only the indices on the vector column Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: resolve the query metric with index::distance_metric Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * seaweed-vector: test the L2 metric under the name CreateIndex stores Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * weed-worker: open a table inside a caller's Lance session Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector: keep opened indices between queries in one session Every open used a fresh Lance session, so the index and metadata caches died with the request and each query loaded the IVF index again. --index-cache-mb sizes the shared cache, 512 MiB by default. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * test/s3vectors: PERF_CLUSTERS draws the perf suite's vectors around shared centres Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: test that compaction drops the deleted key from tied hits Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * seaweed-vector: test that an append-only optimize serves the new row Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: record PERF_NOISE in the perf report config Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * seaweed-vector: a filtered query widens to four times the probes, not without bound With no upper bound Lance prepares every partition for the late search even when the minimum probes already hold k rows, and a filtered query through the index cost as much as the exact scan. A query that names its own probe count gets exactly that count. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * test/s3vectors: report recall through an index without asserting it Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: count a hit tying the k-th best score toward recall Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: allow float32 rounding at the recall cutoff Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: count a repeated hit key once toward recall Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: credit cutoff ties only up to the slots the top-k leaves Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * test/s3vectors: assert every filtered hit passes the filter, indexed or not Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * weed-vector: forget the shared session when a table was dropped and created again The session keys index lists and transactions by dataset version, and a table created again at the same location restarts its versions. An open that finds an older version than the newest seen at that URI, or the same version committed later, replaces the session and opens again. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * weed-vector: test an open after another engine created the table again Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * weed-vector: replace the session in the same lock that records a recreated table A second open of the recreated table could see the new version recorded and the old session still shared, and keep the dropped table's index list. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * seaweed-vector: size default probes from the largest index on the column A sharded build gives the column one index name per shard. The first name alone could be a small shard, and its probe count would then be spent on a larger one. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: skip the probe lookup when a query is given no segments Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector: open every table in its own Lance session again One session shared by every open keeps a table's index loaded between queries, but Lance keys what it caches by location and version, so a table dropped and created again at the same location could be served the old table's index list. Telling the two apart from version and commit time needs a map that only grows, a retry loop and clocks that agree across engines. A private session per open, as before, has no such state. Measured at 50k x 384 through an index, eight clients: 164 queries/s with the shared session, 137 without; one client is unchanged. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * weed-vector: reject --nprobes 0 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK * seaweed-vector: read the partition count from the opened index Lance's index statistics took 3.6 ms a query on a 200k-row table with 447 partitions. Opening the index and asking it takes 0.4 ms, and the scan that follows finds the index already open. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011UpvafvK8JpagF94MHWqwK --------- Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>