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https://github.com/qdrant/qdrant.git
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714 lines
23 KiB
Python
714 lines
23 KiB
Python
import pathlib
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from time import sleep
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from typing import Any, Literal
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from .assertions import assert_hw_measurements_equal_many
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from .fixtures import upsert_random_points, create_collection, get_telemetry_hw_info
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from .utils import *
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COLLECTION_NAME = "test_collection"
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def test_resharding_state_transitions(tmp_path: pathlib.Path):
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"""
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Tests allowed state transitions during resharding
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"""
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# Bootstrap resharding cluster
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peer_uris, _ = bootstrap_resharding(tmp_path)
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# Check that we can't (re)apply unexpected resharding state transitions
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try_requests(peer_uris[0], 400, [
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start_resharding,
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lambda peer_uri: start_resharding(peer_uri, direction="down"),
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commit_write_hashring,
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finish_resharding,
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])
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# Commit read hashring
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resp = commit_read_hashring(peer_uris[0])
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assert_http_ok(resp)
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# Check that we can't (re)apply unexpected resharding state transitions or abort resharding
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try_requests(peer_uris[0], 400, [
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start_resharding,
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lambda peer_uri: start_resharding(peer_uri, direction="down"),
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commit_read_hashring,
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finish_resharding,
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abort_resharding,
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])
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# Commit write hashring
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resp = commit_write_hashring(peer_uris[0])
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assert_http_ok(resp)
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# Check that we can't (re)apply unexpected resharding state transitions or abort resharding
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try_requests(peer_uris[0], 400, [
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start_resharding,
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lambda peer_uri: start_resharding(peer_uri, direction="down"),
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commit_read_hashring,
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commit_write_hashring,
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abort_resharding,
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])
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# Finish resharding
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resp = finish_resharding(peer_uris[0])
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assert_http_ok(resp)
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# Wait for resharding to finish
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wait_for_collection_resharding_operations_count(peer_uris[0], COLLECTION_NAME, 0)
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def test_resharding_abort(tmp_path: pathlib.Path):
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"""
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Tests that resharding can be aborted
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"""
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# Bootstrap resharding cluster
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peer_uris, _ = bootstrap_resharding(tmp_path)
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# Abort resharding
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resp = abort_resharding(peer_uris[0])
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assert_http_ok(resp)
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# Wait for resharding to abort
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wait_for_collection_resharding_operations_count(peer_uris[0], COLLECTION_NAME, 0)
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def test_resharding_abort_with_replicas(tmp_path: pathlib.Path):
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"""
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Tests that resharding can be aborted after replication
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Covers bug <https://github.com/qdrant/qdrant/pull/5792>.
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(
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tmp_path,
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shard_number=1,
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replication_factor=3,
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peers=3,
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upsert_points=1000,
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)
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# Migrate resharding points from shard 0 into 1
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migrate_points(peer_uris[0], peer_ids[0], 0, peer_ids[0], 1, "up")
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activate_replica(peer_uris[0], peer_ids[0], 1)
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# Replicate new shard twice to match replication factor
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replicate_shard(peer_uris[0], peer_ids[0], peer_ids[1], 1)
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replicate_shard(peer_uris[0], peer_ids[0], peer_ids[2], 1)
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# Assert that resharding is still in progress
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info = get_collection_cluster_info(peer_uris[0], COLLECTION_NAME)
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assert "resharding_operations" in info and len(info["resharding_operations"]) == 1
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# Abort resharding
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resp = abort_resharding(peer_uris[0])
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assert_http_ok(resp)
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# Wait for resharding to abort
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wait_for_collection_resharding_operations_count(peer_uris[0], COLLECTION_NAME, 0)
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def test_resharding_abort_on_delete_collection(tmp_path: pathlib.Path):
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"""
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Testa that resharding is automatically aborted, when collection is deleted
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path, peer_idx=-1)
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# Remove collection
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resp = requests.delete(f"{peer_uris[0]}/collections/{COLLECTION_NAME}")
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assert_http_ok(resp)
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# TODO: Wait for/check... *what*? 🤔
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def test_resharding_abort_on_delete_shard_key(tmp_path: pathlib.Path):
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"""
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Tests that resharding is automatically aborted, when custom shard key is deleted
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(
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tmp_path,
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shard_keys=["custom_shard_key_1", "custom_shard_key_2"],
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shard_key="custom_shard_key_2",
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)
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# Delete shard key
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resp = requests.post(f"{peer_uris[0]}/collections/{COLLECTION_NAME}/shards/delete", json={
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"shard_key": "custom_shard_key_2",
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})
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assert_http_ok(resp)
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# Wait for resharding to abort
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wait_for_collection_resharding_operations_count(peer_uris[0], COLLECTION_NAME, 0)
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def test_resharding_abort_on_remove_peer(tmp_path: pathlib.Path):
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"""
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Tests that resharding is automatically aborted, when we force-remove resharding peer
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path, peer_idx=-1)
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# Remove target peer
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resp = requests.delete(f"{peer_uris[0]}/cluster/peer/{peer_ids[-1]}?force=true")
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assert_http_ok(resp)
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# Wait for resharding to abort
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wait_for_collection_resharding_operations_count(peer_uris[0], COLLECTION_NAME, 0)
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def test_resharding_try_remove_target_shard(tmp_path: pathlib.Path):
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"""
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Tests that new shard can't be removed during resharding (until it has been replicated)
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path)
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# Try to remove target shard
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resp = requests.post(f"{peer_uris[0]}/collections/{COLLECTION_NAME}/cluster", json={
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"drop_replica": {
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"peer_id": peer_ids[0],
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"shard_id": 3,
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}
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})
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assert_http(resp, 400)
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@pytest.mark.parametrize("direction, peers", [("up", 3), ("down", 3)])
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def test_resharding_forward(tmp_path: pathlib.Path, direction: Literal["up", "down"], peers: int):
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"""
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Tests that updates are forwarded to target replicas
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path, direction=direction, peers=peers)
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# Upsert points to collection
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upsert_random_points(peer_uris[0], 1000, collection_name=COLLECTION_NAME)
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# Get collection cluster info
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info = get_collection_cluster_info(peer_uris[0], COLLECTION_NAME)
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# Select target replica
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target_shard_id = peers if direction == "up" else peers - 1
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target_peer_id, target_peer_uri = find_replica(target_shard_id, info, peer_uris, peer_ids)
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# Create a list to collect replica URIs selected during test
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replica_uris = []
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for shard_id in range(target_shard_id):
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# Find replicas of selected shard
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peer_id, peer_uri = find_replica(shard_id, info, peer_uris, peer_ids)
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# Assert that all points were correctly forwarded
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assert_resharding_points(peer_uri, shard_id, target_peer_uri, target_shard_id)
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# Append peer URI to the list of replica URIs
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replica_uris.append(peer_uri)
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# Append target replica to the list of replica URIs
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replica_uris.append(target_peer_uri)
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# Assert total count of migrated points
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assert_resharding_points_count(replica_uris)
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@pytest.mark.parametrize("direction, peers", [("up", 3), ("down", 3)])
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def test_resharding_transfer(tmp_path: pathlib.Path, direction: Literal["up", "down"], peers: int):
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"""
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Tests that resharding transfers migrate points to target replicas
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path, upsert_points=1000, direction=direction, peers=peers)
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# Get collection cluster info
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info = get_collection_cluster_info(peer_uris[0], COLLECTION_NAME)
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# Select target replica
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target_shard_id = peers if direction == "up" else peers - 1
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target_peer_id, target_peer_uri = find_replica(target_shard_id, info, peer_uris, peer_ids)
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# Create a list to collect replica URIs selected during test
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replica_uris = []
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for shard_id in range(target_shard_id):
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# Find replica of selected shard
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peer_id, peer_uri = find_replica(shard_id, info, peer_uris, peer_ids)
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# Collect all nodes hardware measurements before transferring
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hw = [get_telemetry_hw_info(uri, COLLECTION_NAME) for uri in peer_uris]
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# Migrate resharding points
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migrate_points(peer_uris[0], peer_id, shard_id, target_peer_id, target_shard_id, direction)
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# Assert that no hardware measurements have been measured for the transfer
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new_hw = [get_telemetry_hw_info(uri, COLLECTION_NAME) for uri in peer_uris]
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assert_hw_measurements_equal_many(hw, new_hw)
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# Assert that all points were correctly migrated
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assert_resharding_points(peer_uri, shard_id, target_peer_uri, target_shard_id)
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# Append peer URI to the list of replica URIs
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replica_uris.append(peer_uri)
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# Append target replica to the list of replica URIs
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replica_uris.append(target_peer_uri)
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# Assert total count of migrated points
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assert_resharding_points_count(replica_uris)
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@pytest.mark.parametrize("peers", [(3)])
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def test_resharding_down_abort_cleanup(tmp_path: pathlib.Path, peers: int):
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"""
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Tests that migrated points are cleaned up from target replicas, when scale-down resharding is aborted
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"""
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# Bootstrap resharding cluster
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peer_uris, peer_ids = bootstrap_resharding(tmp_path, upsert_points=500, direction="down", peers=peers)
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# Upsert points to collection
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upsert_random_points(peer_uris[0], 500, collection_name=COLLECTION_NAME)
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# Get collection cluster info
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info = get_collection_cluster_info(peer_uris[0], COLLECTION_NAME)
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# Select target replica
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target_shard_id = peers - 1
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target_peer_id, _ = find_replica(target_shard_id, info, peer_uris, peer_ids)
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# Create a list to collect replica URIs selected during test
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replica_uris = []
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for shard_id in range(target_shard_id):
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# Find replica of selected shard
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peer_id, peer_uri = find_replica(shard_id, info, peer_uris, peer_ids)
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# Migrate resharding points
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migrate_points(peer_uris[0], peer_id, shard_id, target_peer_id, target_shard_id, "down")
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# Assert that some points were forwarded and/or migrated to selected replica
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resharding_points_count = count_local_points(peer_uri, shard_id, target_shard_id, exact=True)
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assert resharding_points_count > 0
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# Append peer URI to the list of replica URIs
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replica_uris.append(peer_uri)
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# Abort resharding
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resp = abort_resharding(peer_uris[0])
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assert_http_ok(resp)
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# Wait for resharding to abort on all peers
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for peer_uri in replica_uris:
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wait_for_collection_resharding_operations_count(peer_uri, COLLECTION_NAME, 0)
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# Assert that all replicas are in `Active` state
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info = get_collection_cluster_info(peer_uris[0], COLLECTION_NAME)
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for replica in all_replicas(info):
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assert replica["state"] == "Active"
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# Assert that forwarded and/or migrated points were deleted from non-target replicas
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for shard_id, peer_uri in enumerate(replica_uris):
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resharding_points_count = count_local_points(peer_uri, shard_id, target_shard_id, exact=True)
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assert resharding_points_count == 0
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def bootstrap_resharding(
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tmp_path: pathlib.Path,
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collection: str = COLLECTION_NAME,
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peer_idx: int | None = None,
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**kwargs,
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):
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# Bootstrap cluster
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peer_uris, peer_ids = bootstrap_cluster(tmp_path, collection, **kwargs)
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wait_for_all_peers_versions(peer_uris)
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# Select target peer
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peer_id = None
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if peer_idx:
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try:
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peer_id = peer_ids[peer_idx]
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finally:
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pass
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# Start resharding
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resp = start_resharding(peer_uris[0], collection, peer_id=peer_id, **kwargs)
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assert_http_ok(resp)
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# Wait for resharding to start
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wait_for_collection_resharding_operations_count(peer_uris[0], collection, 1)
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return (peer_uris, peer_ids)
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def bootstrap_cluster(
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tmp_path: pathlib.Path,
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collection: str = COLLECTION_NAME,
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shard_number: int = 3,
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replication_factor: int = 2,
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shard_keys: list[str] | str | None = None,
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upsert_points: int = 0,
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peers: int = 3,
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**kwargs,
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) -> tuple[list[str], list[int]]:
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assert_project_root()
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# Prevent optimizers messing with point counts
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env = {
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"QDRANT__STORAGE__OPTIMIZERS__INDEXING_THRESHOLD_KB": "0",
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}
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# Start cluster
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peer_uris, _, _ = start_cluster(tmp_path, peers, extra_env=env)
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# Collect peer IDs
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peer_ids = []
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for peer_uri in peer_uris:
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peer_ids.append(get_cluster_info(peer_uri)["peer_id"])
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# Create collection
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create_collection(
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peer_uris[0],
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collection,
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shard_number,
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replication_factor,
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sharding_method="auto" if shard_keys is None else "custom",
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)
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wait_collection_exists_and_active_on_all_peers(collection, peer_uris)
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# Create custom shard keys (if required), and upload points to collection
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if type(shard_keys) is not list:
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shard_keys: list[str | None] = [shard_keys]
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for shard_key in shard_keys:
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# Create custom shard key (if required)
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if shard_key is not None:
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resp = requests.put(f"{peer_uris[0]}/collections/{collection}/shards", json={
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"shard_key": shard_key,
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"shards_number": shard_number,
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"replication_factor": replication_factor,
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})
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assert_http_ok(resp)
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# Upsert points to collection
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if upsert_points > 0:
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upsert_random_points(
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peer_uris[0],
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upsert_points,
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collection_name=collection,
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shard_key=shard_key,
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)
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return (peer_uris, peer_ids)
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def start_resharding(
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peer_uri: str,
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collection: str = COLLECTION_NAME,
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direction: Literal["up", "down"] = "up",
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peer_id: int | None = None,
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shard_key: str | None = None,
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**kwargs,
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):
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return requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
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"start_resharding": {
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"direction": direction,
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"peer_id": peer_id,
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"shard_key": shard_key,
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}
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})
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def commit_read_hashring(peer_uri: str, collection: str = COLLECTION_NAME):
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return requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
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"commit_read_hash_ring": {}
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})
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def commit_write_hashring(peer_uri: str, collection: str = COLLECTION_NAME):
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return requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
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"commit_write_hash_ring": {}
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})
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def finish_resharding(peer_uri: str, collection: str = COLLECTION_NAME):
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return requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
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"finish_resharding": {}
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})
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def abort_resharding(peer_uri: str, collection: str = COLLECTION_NAME):
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return requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
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"abort_resharding": {}
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})
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def get_local_points(
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peer_uri: str,
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shard_id: int,
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point_ids: list[int],
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collection: str = COLLECTION_NAME,
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):
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resp = requests.post(f"{peer_uri}/collections/{collection}/shards/{shard_id}/points", json = {
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"ids": point_ids,
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"with_vector": True,
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"with_payload": True,
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})
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assert_http_ok(resp)
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return resp.json()['result']
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def scroll_local_points(
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peer_uri: str,
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shard_id: int,
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filter_shard_id: int | None = None,
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offset: int | None = None,
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limit: int | None = None,
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collection: str = COLLECTION_NAME,
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):
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resp = requests.post(f"{peer_uri}/collections/{collection}/shards/{shard_id}/points/scroll", json={
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"limit": limit,
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"offset": offset,
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"hash_ring_filter": None if filter_shard_id is None else {
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"expected_shard_id": filter_shard_id,
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},
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"with_vector": True,
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"with_payload": True,
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})
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assert_http_ok(resp)
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return resp.json()['result']
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def count_local_points(
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peer_uri: str,
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shard_id: int,
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filter_shard_id: int | None = None,
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exact: bool = True,
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collection: str = COLLECTION_NAME,
|
|
) -> int:
|
|
resp = requests.post(f"{peer_uri}/collections/{collection}/shards/{shard_id}/points/count", json={
|
|
"exact": exact,
|
|
"hash_ring_filter": None if filter_shard_id is None else {
|
|
"expected_shard_id": filter_shard_id,
|
|
},
|
|
})
|
|
|
|
assert_http_ok(resp)
|
|
return resp.json()['result']['count']
|
|
|
|
|
|
def migrate_points(
|
|
peer_uri: str,
|
|
peer_id: int,
|
|
shard_id: int,
|
|
target_peer_id: int,
|
|
target_shard_id: int,
|
|
direction: Literal["up", "down"],
|
|
collection: str = COLLECTION_NAME,
|
|
info: dict[str, Any] | None = None,
|
|
) -> tuple[int, int]:
|
|
"""
|
|
Migrates resharding points to or from `shard_id`, depending on resharding `direction`:
|
|
- if `direction` is "up", migrates points from `shard_id` to target shard
|
|
- if `direction` is "down", migrates points from target shard to `shard_id`
|
|
"""
|
|
|
|
# Select replicas for resharding transfer
|
|
if direction == "up":
|
|
from_shard_id = shard_id
|
|
from_peer_id = peer_id
|
|
to_shard_id = target_shard_id
|
|
to_peer_id = target_peer_id
|
|
else:
|
|
from_shard_id = target_shard_id
|
|
from_peer_id = target_peer_id
|
|
to_shard_id = shard_id
|
|
to_peer_id = peer_id
|
|
|
|
# Start resharding transfer
|
|
resp = requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
|
|
"replicate_shard": {
|
|
"from_peer_id": from_peer_id,
|
|
"to_peer_id": to_peer_id,
|
|
"shard_id": from_shard_id,
|
|
"to_shard_id": to_shard_id,
|
|
"method": "resharding_stream_records",
|
|
}
|
|
})
|
|
|
|
assert_http_ok(resp)
|
|
|
|
# Wait for resharding transfer to start
|
|
sleep(1)
|
|
|
|
# Wait for resharding transfer to finish or abort
|
|
wait_for_collection_shard_transfers_count(peer_uri, collection, 0)
|
|
|
|
# Assert that resharding transfer finished successfully
|
|
info = get_collection_cluster_info(peer_uri, collection)
|
|
|
|
# Assert that resharding is still in progress
|
|
assert "resharding_operations" in info and len(info["resharding_operations"]) > 0
|
|
|
|
# Assert that replica `to_shard_id`@`to_peer_id` is in `Resharding` state
|
|
migration_successful = False
|
|
|
|
for replica in all_replicas(info):
|
|
if replica["shard_id"] == to_shard_id and replica["peer_id"] == to_peer_id and replica["state"] in ("Resharding", "ReshardingScaleDown"):
|
|
migration_successful = True
|
|
break
|
|
|
|
assert migration_successful
|
|
|
|
# Return replicas used for resharding transfer
|
|
return (peer_id, target_peer_id)
|
|
|
|
def activate_replica(
|
|
peer_uri: str,
|
|
peer_id: int,
|
|
shard_id: int,
|
|
collection: str = COLLECTION_NAME,
|
|
):
|
|
"""
|
|
Activate a resharding replica that as been migrated into.
|
|
"""
|
|
|
|
# Activate migrated replica
|
|
resp = requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
|
|
"finish_migrating_points": {
|
|
"peer_id": peer_id,
|
|
"shard_id": shard_id,
|
|
}
|
|
})
|
|
|
|
assert_http_ok(resp)
|
|
|
|
# Wait for replica activation
|
|
sleep(1)
|
|
|
|
# Assert that resharding transfer finished successfully
|
|
info = get_collection_cluster_info(peer_uri, collection)
|
|
|
|
# Assert that resharding is still in progress
|
|
assert "resharding_operations" in info and len(info["resharding_operations"]) > 0
|
|
|
|
# Assert that replica `to_shard_id`@`to_peer_id` is in `Active` state
|
|
migration_successful = False
|
|
|
|
for replica in all_replicas(info):
|
|
if replica["shard_id"] == shard_id and replica["peer_id"] == peer_id and replica["state"] in ("Active"):
|
|
migration_successful = True
|
|
break
|
|
|
|
assert migration_successful
|
|
|
|
def replicate_shard(
|
|
peer_uri: str,
|
|
from_peer_id: int,
|
|
to_peer_id: int,
|
|
shard_id: int,
|
|
collection: str = COLLECTION_NAME,
|
|
):
|
|
"""
|
|
Replicate a shard from `from_peer_id` to `to_peer_id`
|
|
"""
|
|
|
|
# Start resharding transfer
|
|
resp = requests.post(f"{peer_uri}/collections/{collection}/cluster", json={
|
|
"replicate_shard": {
|
|
"from_peer_id": from_peer_id,
|
|
"to_peer_id": to_peer_id,
|
|
"shard_id": shard_id,
|
|
"method": "stream_records",
|
|
}
|
|
})
|
|
|
|
assert_http_ok(resp)
|
|
|
|
# Wait for resharding transfer to start
|
|
sleep(1)
|
|
|
|
# Wait for resharding transfer to finish or abort
|
|
wait_for_collection_shard_transfers_count(peer_uri, collection, 0)
|
|
|
|
def assert_resharding_points(peer_uri: str, shard_id: int, target_peer_uri: str, target_shard_id: int):
|
|
"""
|
|
Asserts that target replica contains all resharding points from selected replica
|
|
and these points are exactly the same between replicas
|
|
"""
|
|
|
|
offset = 0
|
|
|
|
while offset is not None:
|
|
# Scroll resharding points in selected replica
|
|
resp = scroll_local_points(peer_uri, shard_id, target_shard_id, offset, 1000)
|
|
|
|
# Fetch the same points from target replica
|
|
target_resp = get_local_points(target_peer_uri, target_shard_id, [point['id'] for point in resp['points']])
|
|
|
|
# Assert that target replica contains all resharding points from selected replica
|
|
# and these points are exactly the same between replicas
|
|
assert target_resp == resp['points']
|
|
|
|
offset = resp['next_page_offset']
|
|
|
|
def assert_resharding_points_count(replica_uris: list[str]):
|
|
"""
|
|
Asserts that target replica points count matches total resharding points count in all other replicas
|
|
"""
|
|
|
|
# Select target replica
|
|
target_shard_id = len(replica_uris) - 1
|
|
target_shard_uri = replica_uris[-1]
|
|
|
|
# Get points count in target replica
|
|
target_points_count = count_local_points(target_shard_uri, target_shard_id, exact=True)
|
|
|
|
# Calculate total resharding points count in all other replicas
|
|
total_resharding_points_count = 0
|
|
|
|
for shard_id, shard_uri in enumerate(replica_uris[:-1]):
|
|
total_resharding_points_count += count_local_points(shard_uri, shard_id, target_shard_id, exact=True)
|
|
|
|
# Assert target replica points count matches total resharding points count
|
|
assert target_points_count == total_resharding_points_count
|
|
|
|
def find_replica(shard_id: int, info: dict[str, Any], peer_uris: list[str], peer_ids: list[int]) -> tuple[int, str]:
|
|
for replica in all_replicas(info):
|
|
if replica["shard_id"] == shard_id:
|
|
peer_id = replica["peer_id"]
|
|
peer_uri = peer_uris[peer_ids.index(peer_id)]
|
|
return (peer_id, peer_uri)
|
|
|
|
raise Exception(f"replica of shard {shard_id} not found: {info}")
|
|
|
|
def all_replicas(info: dict[str, Any]):
|
|
for local in info["local_shards"]:
|
|
local["peer_id"] = info["peer_id"]
|
|
yield local
|
|
|
|
for remote in info["remote_shards"]:
|
|
yield remote
|
|
|
|
def try_requests(
|
|
peer_uri: str,
|
|
expected_status: int,
|
|
reqs: list[Callable[[str], requests.Response]],
|
|
):
|
|
"""
|
|
Execute multiple requests and asserts that all requests return expected status code
|
|
"""
|
|
|
|
for req in reqs:
|
|
resp = req(peer_uri)
|
|
assert_http(resp, expected_status)
|
|
|
|
def assert_http(resp: requests.Response, expected_status: int):
|
|
assert resp.status_code == expected_status, (
|
|
f"`{resp.url}` "
|
|
f"returned an unexpected status code (expected {expected_status}, received {resp.status_code}):\n"
|
|
f"{resp.json()}"
|
|
)
|