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chore: import upstream snapshot with attribution
2026-07-13 12:31:17 +08:00

571 lines
22 KiB
Python

"""
CDC sync tests for search and query result verification across vector types.
"""
import random
import time
import pytest
from pymilvus import AnnSearchRequest, DataType, RRFRanker
from .base import TestCDCSyncBase, logger
# fmt: off
VECTOR_PARAMS = [
("FLOAT_VECTOR", "HNSW", "COSINE", 128),
("FLOAT_VECTOR", "IVF_FLAT", "L2", 128),
("FLOAT16_VECTOR", "HNSW", "L2", 64),
("BFLOAT16_VECTOR", "HNSW", "L2", 64),
("INT8_VECTOR", "HNSW", "COSINE", 64),
("BINARY_VECTOR", "BIN_FLAT", "HAMMING", 128),
("SPARSE_FLOAT_VECTOR", "SPARSE_INVERTED_INDEX", "IP", 0),
]
# fmt: on
class TestCDCSyncSearchVerification(TestCDCSyncBase):
"""Test CDC sync for search and query result verification across vector types."""
def setup_method(self):
"""Setup for each test method."""
self.resources_to_cleanup = []
def teardown_method(self):
"""Cleanup after each test method - only cleanup upstream, downstream will sync."""
upstream_client = getattr(self, "_upstream_client", None)
if upstream_client:
for resource_type, resource_name in self.resources_to_cleanup:
if resource_type == "collection":
self.cleanup_collection(upstream_client, resource_name)
time.sleep(1) # Allow cleanup to sync to downstream
# -------------------------------------------------------------------------
# Internal helper
# -------------------------------------------------------------------------
def _setup_collection(self, client, c_name, vector_type, index_type, metric, dim):
"""
Create a single-vector-schema collection, insert 500 records,
create an index, and load.
Returns the collection name (same as c_name).
"""
schema = self.create_single_vector_schema(client, vector_type=vector_type, dim=dim)
client.create_collection(collection_name=c_name, schema=schema)
# Insert 500 records
data = self.generate_single_vector_data(500, vector_type=vector_type, dim=dim)
client.insert(c_name, data)
client.flush(c_name)
# Build index
index_params = client.prepare_index_params()
if index_type == "IVF_FLAT":
idx_params = {"nlist": 64}
elif index_type == "HNSW":
idx_params = {"M": 16, "efConstruction": 200}
else:
idx_params = {}
index_params.add_index(
field_name="vector",
index_type=index_type,
metric_type=metric,
params=idx_params,
)
client.create_index(c_name, index_params)
client.load_collection(c_name)
return c_name
# -------------------------------------------------------------------------
# Tests
# -------------------------------------------------------------------------
@pytest.mark.parametrize(
"vector_type,index_type,metric,dim",
VECTOR_PARAMS,
ids=[p[0] + "_" + p[1] for p in VECTOR_PARAMS],
)
def test_search_result_consistency(
self,
upstream_client,
downstream_client,
sync_timeout,
vector_type,
index_type,
metric,
dim,
):
"""Verify that ANN search results are consistent between upstream and downstream."""
start_time = time.time()
c_name = self.gen_unique_name(f"test_src_{vector_type[:4].lower()}", max_length=50)
self.log_test_start(
"test_search_result_consistency",
f"SEARCH/{vector_type}/{index_type}",
c_name,
)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
self._setup_collection(upstream_client, c_name, vector_type, index_type, metric, dim)
# Wait for at least 500 records to appear on downstream
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/500")
return cnt >= 500
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"data sync 500 records {c_name}"), (
f"Downstream did not receive 500 records within {sync_timeout}s"
)
# Build 5 random query vectors
dtype = getattr(DataType, vector_type)
query_vectors = self._gen_vectors(5, dim if dim > 0 else 1000, dtype)
avg_overlap, _, _ = self.verify_search_consistency(
upstream_client,
downstream_client,
c_name,
query_vectors,
anns_field="vector",
limit=10,
metric_type=metric,
)
assert avg_overlap >= self.SEARCH_OVERLAP_THRESHOLD, (
f"Search overlap {avg_overlap:.4f} is below threshold "
f"{self.SEARCH_OVERLAP_THRESHOLD} for {vector_type}/{index_type}"
)
finally:
self.log_test_end(
"test_search_result_consistency",
True,
time.time() - start_time,
)
@pytest.mark.parametrize(
"vector_type,index_type,metric,dim",
VECTOR_PARAMS,
ids=[p[0] + "_" + p[1] for p in VECTOR_PARAMS],
)
def test_query_data_sampling(
self,
upstream_client,
downstream_client,
sync_timeout,
vector_type,
index_type,
metric,
dim,
):
"""Verify scalar field values are identical on both sides via random sampling."""
start_time = time.time()
c_name = self.gen_unique_name(f"test_qds_{vector_type[:4].lower()}", max_length=50)
self.log_test_start(
"test_query_data_sampling",
f"QUERY_SAMPLE/{vector_type}/{index_type}",
c_name,
)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
self._setup_collection(upstream_client, c_name, vector_type, index_type, metric, dim)
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/500")
return cnt >= 500
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"data sync 500 records {c_name}"), (
f"Downstream did not receive 500 records within {sync_timeout}s"
)
output_fields = ["id", "int_field", "varchar_field", "float_field"]
match_count, mismatch_count, mismatch_details = self.verify_data_sampling(
upstream_client,
downstream_client,
c_name,
sample_ratio=0.2,
output_fields=output_fields,
)
logger.info(
f"[RESULT] Sampling — match={match_count}, mismatch={mismatch_count}, details={mismatch_details[:3]}"
)
assert mismatch_count == 0, f"Found {mismatch_count} mismatched records: {mismatch_details[:5]}"
finally:
self.log_test_end(
"test_query_data_sampling",
True,
time.time() - start_time,
)
def test_hybrid_search_consistency(
self,
upstream_client,
downstream_client,
sync_timeout,
):
"""Verify hybrid search (dense + sparse, RRF ranker) results are consistent."""
start_time = time.time()
c_name = self.gen_unique_name("test_hybrid_srch", max_length=50)
self.log_test_start("test_hybrid_search_consistency", "HYBRID_SEARCH", c_name)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
# Build schema: dense FloatVector(128) + sparse
schema = upstream_client.create_schema(enable_dynamic_field=True)
schema.add_field("id", DataType.INT64, is_primary=True, auto_id=True)
schema.add_field("dense", DataType.FLOAT_VECTOR, dim=128)
schema.add_field("sparse", DataType.SPARSE_FLOAT_VECTOR)
schema.add_field("int_field", DataType.INT64)
schema.add_field("varchar_field", DataType.VARCHAR, max_length=256)
upstream_client.create_collection(collection_name=c_name, schema=schema)
# Insert 300 records
dense_vecs = self._gen_vectors(300, 128, DataType.FLOAT_VECTOR)
sparse_vecs = self._gen_vectors(300, 1000, DataType.SPARSE_FLOAT_VECTOR)
data = [
{
"dense": dense_vecs[i],
"sparse": sparse_vecs[i],
"int_field": random.randint(0, 1000),
"varchar_field": f"hybrid_{i}_{random.randint(1000, 9999)}",
}
for i in range(300)
]
upstream_client.insert(c_name, data)
upstream_client.flush(c_name)
# Create indexes
index_params = upstream_client.prepare_index_params()
index_params.add_index(
field_name="dense",
index_type="HNSW",
metric_type="COSINE",
params={"M": 16, "efConstruction": 200},
)
index_params.add_index(
field_name="sparse",
index_type="SPARSE_INVERTED_INDEX",
metric_type="IP",
params={},
)
upstream_client.create_index(c_name, index_params)
upstream_client.load_collection(c_name)
# Wait for downstream sync
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/300")
return cnt >= 300
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"hybrid data sync {c_name}"), (
f"Downstream did not receive 300 records within {sync_timeout}s"
)
# Build hybrid search requests
q_dense = self._gen_vectors(1, 128, DataType.FLOAT_VECTOR)[0]
q_sparse = self._gen_vectors(1, 1000, DataType.SPARSE_FLOAT_VECTOR)[0]
dense_req = AnnSearchRequest(
data=[q_dense],
anns_field="dense",
param={"metric_type": "COSINE", "params": {"ef": 64}},
limit=10,
)
sparse_req = AnnSearchRequest(
data=[q_sparse],
anns_field="sparse",
param={"metric_type": "IP"},
limit=10,
)
up_results = upstream_client.hybrid_search(
collection_name=c_name,
reqs=[dense_req, sparse_req],
ranker=RRFRanker(),
limit=10,
output_fields=["id"],
)
down_results = downstream_client.hybrid_search(
collection_name=c_name,
reqs=[dense_req, sparse_req],
ranker=RRFRanker(),
limit=10,
output_fields=["id"],
)
up_pks = set(hit["id"] for hit in up_results[0]) if up_results else set()
down_pks = set(hit["id"] for hit in down_results[0]) if down_results else set()
union_size = len(up_pks | down_pks)
overlap = len(up_pks & down_pks) / union_size if union_size > 0 else 1.0
logger.info(f"[RESULT] Hybrid search PK overlap={overlap:.4f} (up={len(up_pks)}, down={len(down_pks)})")
assert overlap >= self.SEARCH_OVERLAP_THRESHOLD, (
f"Hybrid search overlap {overlap:.4f} below threshold {self.SEARCH_OVERLAP_THRESHOLD}"
)
finally:
self.log_test_end(
"test_hybrid_search_consistency",
True,
time.time() - start_time,
)
def test_search_iterator_consistency(
self,
upstream_client,
downstream_client,
sync_timeout,
):
"""Verify search iterator returns the same PK set on upstream and downstream."""
start_time = time.time()
c_name = self.gen_unique_name("test_srch_iter", max_length=50)
self.log_test_start("test_search_iterator_consistency", "SEARCH_ITERATOR", c_name)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
self._setup_collection(upstream_client, c_name, "FLOAT_VECTOR", "HNSW", "COSINE", 128)
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/500")
return cnt >= 500
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"data sync 500 records {c_name}"), (
f"Downstream did not receive 500 records within {sync_timeout}s"
)
query_vec = self._gen_vectors(1, 128, DataType.FLOAT_VECTOR)[0]
search_params = {"metric_type": "COSINE", "params": {"ef": 64}}
def _collect_iterator_pks(client):
pks = set()
iterator = client.search_iterator(
collection_name=c_name,
data=[query_vec],
anns_field="vector",
batch_size=50,
limit=200,
param=search_params,
output_fields=["id"],
)
while True:
batch = iterator.next()
if not batch:
iterator.close()
break
for hit in batch:
pks.add(hit["id"])
return pks
up_pks = _collect_iterator_pks(upstream_client)
down_pks = _collect_iterator_pks(downstream_client)
union_size = len(up_pks | down_pks)
overlap = len(up_pks & down_pks) / union_size if union_size > 0 else 1.0
logger.info(f"[RESULT] Search iterator overlap={overlap:.4f} (up={len(up_pks)}, down={len(down_pks)})")
assert overlap >= self.SEARCH_OVERLAP_THRESHOLD, (
f"Search iterator PK overlap {overlap:.4f} below threshold {self.SEARCH_OVERLAP_THRESHOLD}"
)
finally:
self.log_test_end(
"test_search_iterator_consistency",
True,
time.time() - start_time,
)
def test_query_iterator_consistency(
self,
upstream_client,
downstream_client,
sync_timeout,
):
"""Verify that a query iterator retrieves identical PK sets from both sides."""
start_time = time.time()
c_name = self.gen_unique_name("test_qry_iter", max_length=50)
self.log_test_start("test_query_iterator_consistency", "QUERY_ITERATOR", c_name)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
self._setup_collection(upstream_client, c_name, "FLOAT_VECTOR", "HNSW", "COSINE", 128)
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/500")
return cnt >= 500
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"data sync 500 records {c_name}"), (
f"Downstream did not receive 500 records within {sync_timeout}s"
)
up_count, down_count, match = self.verify_iterator_consistency(
upstream_client,
downstream_client,
c_name,
batch_size=100,
)
logger.info(f"[RESULT] Query iterator — upstream={up_count}, downstream={down_count}, match={match}")
assert match, f"Query iterator PK sets differ: upstream={up_count}, downstream={down_count}"
finally:
self.log_test_end(
"test_query_iterator_consistency",
True,
time.time() - start_time,
)
def test_search_with_filter_consistency(
self,
upstream_client,
downstream_client,
sync_timeout,
):
"""Verify filtered search produces consistent results honoring the filter predicate."""
start_time = time.time()
c_name = self.gen_unique_name("test_srch_filter", max_length=50)
self.log_test_start("test_search_with_filter_consistency", "SEARCH_WITH_FILTER", c_name)
self._upstream_client = upstream_client
self.resources_to_cleanup.append(("collection", c_name))
try:
self.cleanup_collection(upstream_client, c_name)
self._setup_collection(upstream_client, c_name, "FLOAT_VECTOR", "HNSW", "COSINE", 128)
def check_sync():
try:
res = downstream_client.query(
collection_name=c_name,
filter="",
output_fields=["count(*)"],
)
cnt = res[0]["count(*)"] if res else 0
logger.info(f"[SYNC_PROGRESS] downstream count: {cnt}/500")
return cnt >= 500
except Exception as e:
logger.warning(f"Sync check failed: {e}")
return False
assert self.wait_for_sync(check_sync, sync_timeout, f"data sync 500 records {c_name}"), (
f"Downstream did not receive 500 records within {sync_timeout}s"
)
filter_expr = "int_field > 500"
query_vec = self._gen_vectors(1, 128, DataType.FLOAT_VECTOR)[0]
search_params = {"metric_type": "COSINE"}
up_results = upstream_client.search(
collection_name=c_name,
data=[query_vec],
anns_field="vector",
search_params=search_params,
filter=filter_expr,
limit=10,
output_fields=["id", "int_field"],
)
down_results = downstream_client.search(
collection_name=c_name,
data=[query_vec],
anns_field="vector",
search_params=search_params,
filter=filter_expr,
limit=10,
output_fields=["id", "int_field"],
)
# Verify filter is honoured on both sides
for hit in up_results[0] if up_results else []:
assert hit["int_field"] > 500, f"Filter violated on upstream: int_field={hit['int_field']}"
for hit in down_results[0] if down_results else []:
assert hit["int_field"] > 500, f"Filter violated on downstream: int_field={hit['int_field']}"
# Verify PK overlap
up_pks = set(hit["id"] for hit in up_results[0]) if up_results else set()
down_pks = set(hit["id"] for hit in down_results[0]) if down_results else set()
union_size = len(up_pks | down_pks)
overlap = len(up_pks & down_pks) / union_size if union_size > 0 else 1.0
logger.info(f"[RESULT] Filtered search overlap={overlap:.4f} (up={len(up_pks)}, down={len(down_pks)})")
assert overlap >= self.SEARCH_OVERLAP_THRESHOLD, (
f"Filtered search overlap {overlap:.4f} below threshold {self.SEARCH_OVERLAP_THRESHOLD}"
)
finally:
self.log_test_end(
"test_search_with_filter_consistency",
True,
time.time() - start_time,
)