Files
8f09efda8f test: expand CDC replication test coverage across features and chaos scenarios (#49043)
## Summary

Extends the CDC (replication) e2e test suite with comprehensive
cross-feature coverage and switchover/failover scenarios on top of
#45624.

## What's Added

### New test files (\`tests/python_client/cdc/testcases/\`)
- \`test_fts_and_text.py\` — BM25 search, text_match, phrase_match,
hybrid FTS+dense, FTS after switchover (5 tests × 2 analyzers)
- \`test_schema_features.py\` — dynamic schema, nullable, defaults,
partition key, clustering key, combined features (7 tests)
- \`test_collection_properties.py\` — TTL, mmap, autocompaction,
multi-property, drop property (5 tests)
- \`test_resource_group.py\` — create, drop, update, transfer replica (4
tests)
- \`test_multi_database.py\` — cross-DB collections, drop DB with
collections, cross-DB operations (3 tests)
- \`test_search_verification.py\` — 6 tests × 7 vector types (search
result consistency, query data sampling, hybrid search, iterators,
filtered search)
- \`test_switchover.py\` — basic, during-writes, all-types, loaded,
indexed, rapid stress, failover (7 tests)

### Shared utilities
- \`base.py\`: +7 schema factories, +4 data generators, +4 verification
helpers, +2 constants
- \`conftest.py\`: +\`switchover_helper\` fixture,
+\`--is-check\`/\`--milvus-ns\` options

## Test plan
- [ ] Run \`pytest tests/python_client/cdc/testcases/\` against
two-cluster CDC deployment
- [ ] Verify each test file runs independently via \`pytest
testcases/test_<name>.py\`
- [ ] Companion PR in zilliztech/test-jobs adds Jenkins pipelines to run
these

issue: #49042
pr: #45624

/kind test
/kind improvement

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Yihao Dai <yihao.dai@zilliz.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-28 10:29:50 +08:00

413 lines
15 KiB
Python

"""
CDC topology setup and configuration test cases.
"""
import time
import pytest
from common.common_type import CaseLabel
from cdc.conftest import CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, apply_replicate_configuration
from .base import TestCDCSyncBase
@pytest.mark.tags(CaseLabel.CDC)
@pytest.mark.skip(reason="Skip topology setup test")
class TestCDCTopologySetup(TestCDCSyncBase):
"""Test CDC topology setup, switching, and configuration management."""
def setup_method(self):
"""Setup for each test method."""
self.resources_to_cleanup = []
def teardown_method(self):
"""Cleanup after each test method."""
# Cleanup will be handled by individual test methods as needed
pass
def test_normal_topology_setup(
self,
upstream_client,
downstream_client,
upstream_uri,
downstream_uri,
upstream_token,
downstream_token,
source_cluster_id,
target_cluster_id,
pchannel_num,
):
"""Test case 1: Normal upstream/downstream topology setup."""
# Create a basic topology configuration
config = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
}
],
}
# Test normal topology setup
apply_replicate_configuration([(upstream_client, config), (downstream_client, config)])
# Wait for configuration to take effect
time.sleep(3)
# Verify topology is working by creating a test collection
test_collection_name = self.gen_unique_name("topology_test")
self.resources_to_cleanup.append(("collection", test_collection_name))
# Create collection on upstream
upstream_client.create_collection(
collection_name=test_collection_name,
schema=self.create_default_schema(upstream_client),
)
# Verify it syncs to downstream
def check_sync():
return downstream_client.has_collection(test_collection_name)
assert self.wait_for_sync(check_sync, 30, f"collection {test_collection_name} sync")
# Cleanup
self.cleanup_collection(upstream_client, test_collection_name)
def test_switch_upstream_downstream(
self,
upstream_client,
downstream_client,
upstream_uri,
downstream_uri,
upstream_token,
downstream_token,
source_cluster_id,
target_cluster_id,
pchannel_num,
):
"""Test case 2: Switch upstream/downstream after initial setup."""
# First setup normal topology (source -> target)
original_config = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
}
],
}
apply_replicate_configuration([(upstream_client, original_config), (downstream_client, original_config)])
time.sleep(3)
# Now switch the direction (target -> source)
switched_config = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": target_cluster_id, # Switched
"target_cluster_id": source_cluster_id, # Switched
}
],
}
# Apply switched configuration
apply_replicate_configuration([(upstream_client, switched_config), (downstream_client, switched_config)])
time.sleep(3)
# Test the switched topology by creating collection on downstream (now source)
test_collection_name = self.gen_unique_name("switch_test")
self.resources_to_cleanup.append(("collection", test_collection_name))
downstream_client.create_collection(
collection_name=test_collection_name,
schema=self.create_default_schema(downstream_client),
)
# Verify it syncs to upstream (now target)
def check_switched_sync():
return upstream_client.has_collection(test_collection_name)
assert self.wait_for_sync(check_switched_sync, 30, f"switched collection {test_collection_name} sync")
# Cleanup
self.cleanup_collection(downstream_client, test_collection_name)
def test_invalid_topology_structures(
self,
upstream_client,
downstream_client,
upstream_uri,
downstream_uri,
upstream_token,
downstream_token,
source_cluster_id,
target_cluster_id,
):
"""Test case 4: Invalid topology structure cases."""
# Test case 4.1: Missing cluster in cross_cluster_topology
invalid_config_1 = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_0"],
}
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": "nonexistent_cluster", # This cluster is not defined
}
],
}
with pytest.raises(Exception):
upstream_client.update_replicate_configuration(
timeout=CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, **invalid_config_1
)
# Test case 4.2: Circular dependency (A -> B, B -> A)
invalid_config_2 = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_0"],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_0"],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
},
{
"source_cluster_id": target_cluster_id,
"target_cluster_id": source_cluster_id, # Circular dependency
},
],
}
# This may or may not fail depending on implementation, but test it
with pytest.raises(Exception):
upstream_client.update_replicate_configuration(
timeout=CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, **invalid_config_2
)
# Test case 4.3: Invalid connection parameters
invalid_config_3 = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {
"uri": "http://invalid-host:19530", # Invalid URI
"token": "invalid:token",
},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_0"],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_0"],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
}
],
}
with pytest.raises(Exception):
upstream_client.update_replicate_configuration(
timeout=CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, **invalid_config_3
)
# Test case 4.4: Empty cluster list but non-empty topology
invalid_config_4 = {
"clusters": [], # Empty clusters
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
}
],
}
with pytest.raises(Exception):
upstream_client.update_replicate_configuration(
timeout=CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, **invalid_config_4
)
# Test case 4.5: Invalid pchannel format
invalid_config_5 = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": ["invalid-channel-format"], # Invalid format
}
],
"cross_cluster_topology": [],
}
with pytest.raises(Exception):
upstream_client.update_replicate_configuration(
timeout=CDC_UPDATE_REPLICATE_TIMEOUT_SECONDS, **invalid_config_5
)
@pytest.mark.order(-1)
def test_clear_configuration_disconnect(
self,
upstream_client,
downstream_client,
upstream_uri,
downstream_uri,
upstream_token,
downstream_token,
source_cluster_id,
target_cluster_id,
pchannel_num,
):
"""Test case 3: Clear configuration and disconnect CDC."""
# First setup normal topology
config = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
},
],
"cross_cluster_topology": [
{
"source_cluster_id": source_cluster_id,
"target_cluster_id": target_cluster_id,
}
],
}
apply_replicate_configuration([(upstream_client, config), (downstream_client, config)])
time.sleep(3)
# Verify topology is working
test_collection_name = self.gen_unique_name("clear_config_test")
upstream_client.create_collection(
collection_name=test_collection_name,
schema=self.create_default_schema(upstream_client),
)
def check_initial_sync():
return downstream_client.has_collection(test_collection_name)
assert self.wait_for_sync(check_initial_sync, 30, f"initial collection {test_collection_name} sync")
# Now clear the configuration (empty topology)
empty_upstream_config = {
"clusters": [
{
"cluster_id": source_cluster_id,
"connection_param": {"uri": upstream_uri, "token": upstream_token},
"pchannels": [f"{source_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
}
],
"cross_cluster_topology": [],
}
empty_downstream_config = {
"clusters": [
{
"cluster_id": target_cluster_id,
"connection_param": {
"uri": downstream_uri,
"token": downstream_token,
},
"pchannels": [f"{target_cluster_id}-rootcoord-dml_{i}" for i in range(pchannel_num)],
}
],
"cross_cluster_topology": [],
}
# Apply empty configuration to disconnect CDC
apply_replicate_configuration(
[(upstream_client, empty_upstream_config), (downstream_client, empty_downstream_config)]
)
time.sleep(3)
# Test that CDC is disconnected - create new collection and verify it doesn't sync
disconnected_collection_name = self.gen_unique_name("disconnected_test")
upstream_client.create_collection(
collection_name=disconnected_collection_name,
schema=self.create_default_schema(upstream_client),
)
# Wait a reasonable time and verify it doesn't sync
time.sleep(10)
assert not downstream_client.has_collection(disconnected_collection_name), (
"Collection should not sync after CDC disconnection"
)
# Cleanup
self.cleanup_collection(upstream_client, test_collection_name)
self.cleanup_collection(upstream_client, disconnected_collection_name)