mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 00:22:29 +00:00
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
import pytest
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
|
|
node1 = cluster.add_instance(
|
|
"node1",
|
|
main_configs=["configs/remote_servers.xml"],
|
|
with_zookeeper=True,
|
|
stay_alive=True,
|
|
)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def test_ddl_queue_delete_add_replica(started_cluster):
|
|
# Some query started on the cluster, then we deleted some unfinished node
|
|
# and added a new node to the cluster. Considering that there are less
|
|
# finished nodes than expected and we can't resolve deleted node's hostname
|
|
# the queue will be stuck on a new node.
|
|
# <host_name> inside <distributed_ddl> allows us to simply discard deleted
|
|
# node's hostname by simple comparison without trying to resolve it.
|
|
|
|
node1.query(
|
|
"create table hostname_change on cluster test_cluster (n int) engine=Log"
|
|
)
|
|
|
|
# There's no easy way to change hostname of a container, so let's update values in zk
|
|
query_znode = node1.query(
|
|
"select max(name) from system.zookeeper where path='/clickhouse/task_queue/ddl'"
|
|
)[:-1]
|
|
|
|
value = (
|
|
node1.query(
|
|
f"select value from system.zookeeper where path='/clickhouse/task_queue/ddl' and name='{query_znode}' format TSVRaw"
|
|
)[:-1]
|
|
.replace(
|
|
"hosts: ['node1:9000']", "hosts: ['finished_node:9000','deleted_node:9000']"
|
|
)
|
|
.replace("initiator: node1:9000", "initiator: finished_node:9000")
|
|
.replace("\\'", "#")
|
|
.replace("'", "\\'")
|
|
.replace("\n", "\\n")
|
|
.replace("#", "\\'")
|
|
)
|
|
|
|
finished_znode = node1.query(
|
|
f"select name from system.zookeeper where path='/clickhouse/task_queue/ddl/{query_znode}/finished' and name like '%node1%'"
|
|
)[:-1]
|
|
|
|
node1.query(
|
|
f"insert into system.zookeeper (name, path, value) values ('{query_znode}', '/clickhouse/task_queue/ddl', '{value}')"
|
|
)
|
|
started_cluster.get_kazoo_client("zoo1").delete(
|
|
f"/clickhouse/task_queue/ddl/{query_znode}/finished/{finished_znode}"
|
|
)
|
|
|
|
finished_znode = finished_znode.replace("node1", "finished_node")
|
|
|
|
node1.query(
|
|
f"insert into system.zookeeper (name, path, value) values ('{finished_znode}', '/clickhouse/task_queue/ddl/{query_znode}/finished', '0\\n')"
|
|
)
|
|
|
|
node1.restart_clickhouse(kill=True)
|
|
|
|
node1.query(
|
|
"create table hostname_change2 on cluster test_cluster (n int) engine=Log"
|
|
)
|