/kind improvement
add testcases and fix a related issue
issue: #47928
---------
Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
- Remove `metric_type` from `DEFAULT_SEARCH_PARAM` and
`DEFAULT_INT8_SEARCH_PARAM` in chaos test constants, letting the server
auto-infer metric type from the index
- Fixes chaos test failures (broken since build #24014) where
`AddVectorFieldChecker` creates COSINE-indexed vector fields but all
search checkers hardcode `metric_type: L2`
## Root Cause
In chaos tests, `AddVectorFieldChecker` dynamically adds nullable
FLOAT_VECTOR fields with **COSINE** HNSW index. After etcd pod-failure
recovery, `SearchChecker`, `HybridSearchChecker`, and
`NullVectorSearchChecker` re-initialize and discover these new fields.
When they search on them using hardcoded `metric_type: L2`, the server
returns:
- `metric type not match: invalid parameter[expected=COSINE][actual=L2]`
- `hybrid_search` 0% success rate (iterates ALL vector fields)
- `search`/`null_vector_search` ~28% success rate
Reference failure: [chaos-test-cron
#24056](https://qa-jenkins.milvus.io/blue/organizations/jenkins/chaos-test-cron/detail/chaos-test-cron/24056/pipeline/)
## Test plan
- [x] Verified on Milvus master (`master-20260313-f163e94`): search
without `metric_type` correctly auto-detects L2 and COSINE from index
- [x] Verified hybrid search across mixed metric types (L2 + COSINE)
works without specifying `metric_type`
- [x] Backwards compatible: explicit `metric_type` in search params
still works
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Signed-off-by: yanliang567 <82361606+yanliang567@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
add freshness checker
insert/upsert --> query: Get the time when it can be queried
delete --> query: Get the time when it can not be queried
Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>
zhuwenxing
yanliang567
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