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156 lines
4.4 KiB
Python
156 lines
4.4 KiB
Python
#!/usr/bin/env python3
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#!/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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# clickhouse itself will use external zookeeper
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node = cluster.add_instance(
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"node",
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main_configs=["configs/enable_keeper.xml"],
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stay_alive=True,
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with_zookeeper=True,
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)
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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(
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hosts=cluster.get_instance_ip(nodename) + ":9181", timeout=timeout
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)
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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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existing_children = []
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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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else:
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existing_children.append("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 (
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node_zk2.exists("/test_state_after_restart/node" + str(i)) is None
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)
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else:
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data, stat = node_zk2.get("/test_state_after_restart/node" + str(i))
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assert len(data) == 123
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assert data == strs[i]
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assert stat.ephemeralOwner == 0
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assert list(sorted(existing_children)) == list(
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sorted(node_zk2.get_children("/test_state_after_restart"))
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)
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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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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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session_id = node_zk._session_id
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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(
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"/test_ephemeral_after_restart/node" + str(i), strs[i], ephemeral=True
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)
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existing_children = []
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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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else:
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existing_children.append("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 (
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node_zk2.exists("/test_ephemeral_after_restart/node" + str(i))
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is None
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)
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else:
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data, stat = node_zk2.get("/test_ephemeral_after_restart/node" + str(i))
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assert len(data) == 123
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assert data == strs[i]
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assert stat.ephemeralOwner == session_id
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assert list(sorted(existing_children)) == list(
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sorted(node_zk2.get_children("/test_ephemeral_after_restart"))
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)
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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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