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125 lines
4.0 KiB
Python
125 lines
4.0 KiB
Python
#!/usr/bin/env python3
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import pytest
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from helpers.cluster import ClickHouseCluster
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import random
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import string
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import os
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import time
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from kazoo.client import KazooClient, KazooState
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance('node', main_configs=['configs/enable_test_keeper.xml', 'configs/logs_conf.xml', 'configs/use_test_keeper.xml'], stay_alive=True)
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def random_string(length):
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return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
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def create_random_path(prefix="", depth=1):
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if depth == 0:
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return prefix
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return create_random_path(os.path.join(prefix, random_string(3)), depth - 1)
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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def get_connection_zk(nodename, timeout=30.0):
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_fake_zk_instance = KazooClient(hosts=cluster.get_instance_ip(nodename) + ":9181", timeout=timeout)
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def reset_listener(state):
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nonlocal _fake_zk_instance
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print("Fake zk callback called for state", state)
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if state != KazooState.CONNECTED:
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_fake_zk_instance._reset()
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_fake_zk_instance.add_listener(reset_listener)
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_fake_zk_instance.start()
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return _fake_zk_instance
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def test_state_after_restart(started_cluster):
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try:
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node_zk = None
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node_zk2 = None
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node_zk = get_connection_zk("node")
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node_zk.create("/test_state_after_restart", b"somevalue")
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strs = []
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for i in range(100):
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strs.append(random_string(123).encode())
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node_zk.create("/test_state_after_restart/node" + str(i), strs[i])
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for i in range(100):
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if i % 7 == 0:
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node_zk.delete("/test_state_after_restart/node" + str(i))
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node.restart_clickhouse(kill=True)
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node_zk2 = get_connection_zk("node")
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assert node_zk2.get("/test_state_after_restart")[0] == b"somevalue"
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for i in range(100):
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if i % 7 == 0:
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assert node_zk2.exists("/test_state_after_restart/node" + str(i)) is None
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else:
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assert len(node_zk2.get("/test_state_after_restart/node" + str(i))[0]) == 123
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assert node_zk2.get("/test_state_after_restart/node" + str(i))[0] == strs[i]
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finally:
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try:
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if node_zk is not None:
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node_zk.stop()
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node_zk.close()
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if node_zk2 is not None:
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node_zk2.stop()
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node_zk2.close()
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except:
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pass
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# http://zookeeper-user.578899.n2.nabble.com/Why-are-ephemeral-nodes-written-to-disk-tp7583403p7583418.html
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def test_ephemeral_after_restart(started_cluster):
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try:
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node_zk = None
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node_zk2 = None
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node_zk = get_connection_zk("node")
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node_zk.create("/test_ephemeral_after_restart", b"somevalue")
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strs = []
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for i in range(100):
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strs.append(random_string(123).encode())
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node_zk.create("/test_ephemeral_after_restart/node" + str(i), strs[i], ephemeral=True)
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for i in range(100):
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if i % 7 == 0:
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node_zk.delete("/test_ephemeral_after_restart/node" + str(i))
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node.restart_clickhouse(kill=True)
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node_zk2 = get_connection_zk("node")
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assert node_zk2.get("/test_ephemeral_after_restart")[0] == b"somevalue"
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for i in range(100):
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if i % 7 == 0:
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assert node_zk2.exists("/test_ephemeral_after_restart/node" + str(i)) is None
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else:
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assert len(node_zk2.get("/test_ephemeral_after_restart/node" + str(i))[0]) == 123
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assert node_zk2.get("/test_ephemeral_after_restart/node" + str(i))[0] == strs[i]
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finally:
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try:
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if node_zk is not None:
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node_zk.stop()
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node_zk.close()
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if node_zk2 is not None:
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node_zk2.stop()
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node_zk2.close()
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except:
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pass
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