ClickHouse/tests/integration/test_keeper_snapshots_multinode/test.py

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2021-03-03 15:37:31 +00:00
#!/usr/bin/env python3
import pytest
from helpers.cluster import ClickHouseCluster
import random
import string
import os
import time
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', main_configs=['configs/enable_keeper1.xml'], stay_alive=True)
node2 = cluster.add_instance('node2', main_configs=['configs/enable_keeper2.xml'], stay_alive=True)
node3 = cluster.add_instance('node3', main_configs=['configs/enable_keeper3.xml'], stay_alive=True)
2021-03-03 15:37:31 +00:00
from kazoo.client import KazooClient, KazooState
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def get_fake_zk(nodename, timeout=30.0):
_fake_zk_instance = KazooClient(hosts=cluster.get_instance_ip(nodename) + ":9181", timeout=timeout)
_fake_zk_instance.start()
return _fake_zk_instance
def stop_zk(zk):
try:
if zk:
zk.stop()
zk.close()
except:
pass
def test_restart_multinode(started_cluster):
try:
node1_zk = node2_zk = node3_zk = None
node1_zk = get_fake_zk("node1")
node2_zk = get_fake_zk("node2")
node3_zk = get_fake_zk("node3")
for i in range(100):
node1_zk.create("/test_read_write_multinode_node" + str(i), ("somedata" + str(i)).encode())
for i in range(100):
if i % 10 == 0:
node1_zk.delete("/test_read_write_multinode_node" + str(i))
node2_zk.sync("/test_read_write_multinode_node0")
node3_zk.sync("/test_read_write_multinode_node0")
for i in range(100):
if i % 10 != 0:
assert node2_zk.get("/test_read_write_multinode_node" + str(i))[0] == ("somedata" + str(i)).encode()
assert node3_zk.get("/test_read_write_multinode_node" + str(i))[0] == ("somedata" + str(i)).encode()
else:
assert node2_zk.exists("/test_read_write_multinode_node" + str(i)) is None
assert node3_zk.exists("/test_read_write_multinode_node" + str(i)) is None
finally:
for zk in [node1_zk, node2_zk, node3_zk]:
stop_zk(zk)
node1.restart_clickhouse(kill=True)
node2.restart_clickhouse(kill=True)
node3.restart_clickhouse(kill=True)
for i in range(100):
try:
node1_zk = get_fake_zk("node1")
node2_zk = get_fake_zk("node2")
node3_zk = get_fake_zk("node3")
for i in range(100):
if i % 10 != 0:
assert node1_zk.get("/test_read_write_multinode_node" + str(i))[0] == ("somedata" + str(i)).encode()
assert node2_zk.get("/test_read_write_multinode_node" + str(i))[0] == ("somedata" + str(i)).encode()
assert node3_zk.get("/test_read_write_multinode_node" + str(i))[0] == ("somedata" + str(i)).encode()
else:
assert node1_zk.exists("/test_read_write_multinode_node" + str(i)) is None
assert node2_zk.exists("/test_read_write_multinode_node" + str(i)) is None
assert node3_zk.exists("/test_read_write_multinode_node" + str(i)) is None
break
except Exception as ex:
print("Got exception as ex", ex)
finally:
for zk in [node1_zk, node2_zk, node3_zk]:
stop_zk(zk)