mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-23 08:02:02 +00:00
755 lines
22 KiB
Python
755 lines
22 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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import helpers.keeper_utils as keeper_utils
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import time
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import csv
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import re
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1", main_configs=["configs/enable_keeper1.xml"], stay_alive=True
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)
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node2 = cluster.add_instance(
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"node2", main_configs=["configs/enable_keeper2.xml"], stay_alive=True
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)
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node3 = cluster.add_instance(
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"node3", main_configs=["configs/enable_keeper3.xml"], stay_alive=True
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)
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from kazoo.client import KazooClient
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def wait_nodes():
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keeper_utils.wait_nodes(cluster, [node1, node2, node3])
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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 destroy_zk_client(zk):
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try:
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if zk:
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zk.stop()
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zk.close()
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except:
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pass
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def clear_znodes():
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zk = None
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try:
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zk = get_fake_zk(node3.name, timeout=30.0)
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nodes = zk.get_children("/")
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for node in [n for n in nodes if "test_4lw_" in n]:
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zk.delete("/" + node)
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finally:
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destroy_zk_client(zk)
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def get_fake_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 close_keeper_socket(cli):
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if cli is not None:
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cli.close()
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def reset_node_stats(node=node1):
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client = None
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try:
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client = keeper_utils.get_keeper_socket(cluster, node)
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client.send(b"srst")
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client.recv(10)
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finally:
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if client is not None:
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client.close()
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def reset_conn_stats(node=node1):
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client = None
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try:
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client = keeper_utils.get_keeper_socket(cluster, node)
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client.send(b"crst")
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client.recv(10_000)
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finally:
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if client is not None:
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client.close()
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def test_cmd_ruok(started_cluster):
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client = None
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try:
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wait_nodes()
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="ruok")
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assert data == "imok"
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finally:
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close_keeper_socket(client)
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def do_some_action(
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zk, create_cnt=0, get_cnt=0, set_cnt=0, ephemeral_cnt=0, watch_cnt=0, delete_cnt=0
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):
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assert create_cnt >= get_cnt
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assert create_cnt >= set_cnt
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assert create_cnt >= watch_cnt
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assert create_cnt >= delete_cnt
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# ensure not delete watched node
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assert create_cnt >= (delete_cnt + watch_cnt)
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for i in range(create_cnt):
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zk.create("/test_4lw_normal_node_" + str(i), b"")
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for i in range(get_cnt):
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zk.get("/test_4lw_normal_node_" + str(i))
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for i in range(set_cnt):
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zk.set("/test_4lw_normal_node_" + str(i), b"new-value")
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for i in range(ephemeral_cnt):
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zk.create("/test_4lw_ephemeral_node_" + str(i), ephemeral=True)
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fake_ephemeral_event = None
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def fake_ephemeral_callback(event):
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print("Fake watch triggered")
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nonlocal fake_ephemeral_event
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fake_ephemeral_event = event
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for i in range(watch_cnt):
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zk.exists("/test_4lw_normal_node_" + str(i), watch=fake_ephemeral_callback)
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for i in range(create_cnt - delete_cnt, create_cnt):
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zk.delete("/test_4lw_normal_node_" + str(i))
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def test_cmd_mntr(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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leader = keeper_utils.get_leader(cluster, [node1, node2, node3])
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# reset stat first
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reset_node_stats(leader)
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zk = get_fake_zk(leader.name, timeout=30.0)
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do_some_action(
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zk,
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create_cnt=10,
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get_cnt=10,
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set_cnt=5,
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ephemeral_cnt=2,
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watch_cnt=2,
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delete_cnt=2,
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)
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data = keeper_utils.send_4lw_cmd(cluster, leader, cmd="mntr")
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# print(data.decode())
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reader = csv.reader(data.split("\n"), delimiter="\t")
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result = {}
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for row in reader:
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if len(row) != 0:
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result[row[0]] = row[1]
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assert len(result["zk_version"]) != 0
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assert int(result["zk_avg_latency"]) >= 0
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assert int(result["zk_max_latency"]) >= 0
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assert int(result["zk_min_latency"]) >= 0
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assert int(result["zk_min_latency"]) <= int(result["zk_avg_latency"])
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assert int(result["zk_max_latency"]) >= int(result["zk_avg_latency"])
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assert int(result["zk_num_alive_connections"]) == 1
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assert int(result["zk_outstanding_requests"]) == 0
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assert result["zk_server_state"] == "leader"
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# contains:
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# 10 nodes created by test
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# 3 nodes created by clickhouse "/clickhouse/task_queue/ddl"
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# 1 root node, 3 keeper system nodes
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assert int(result["zk_znode_count"]) == 14
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assert int(result["zk_watch_count"]) == 2
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assert int(result["zk_ephemerals_count"]) == 2
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assert int(result["zk_approximate_data_size"]) > 0
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assert int(result["zk_open_file_descriptor_count"]) > 0
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assert int(result["zk_max_file_descriptor_count"]) > 0
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assert int(result["zk_followers"]) == 2
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assert int(result["zk_synced_followers"]) == 2
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# contains 31 user request response and some responses for server startup
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assert int(result["zk_packets_sent"]) >= 31
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assert int(result["zk_packets_received"]) >= 31
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finally:
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destroy_zk_client(zk)
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def test_cmd_srst(started_cluster):
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client = None
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try:
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wait_nodes()
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clear_znodes()
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="srst")
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assert data.strip() == "Server stats reset."
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="mntr")
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assert len(data) != 0
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# print(data)
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reader = csv.reader(data.split("\n"), delimiter="\t")
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result = {}
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for row in reader:
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if len(row) != 0:
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result[row[0]] = row[1]
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assert int(result["zk_packets_received"]) == 0
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assert int(result["zk_packets_sent"]) == 0
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finally:
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close_keeper_socket(client)
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def test_cmd_conf(started_cluster):
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client = None
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try:
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wait_nodes()
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clear_znodes()
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="conf")
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reader = csv.reader(data.split("\n"), delimiter="=")
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result = {}
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for row in reader:
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if len(row) != 0:
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print(row)
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result[row[0]] = row[1]
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assert result["server_id"] == "1"
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assert result["tcp_port"] == "9181"
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assert "tcp_port_secure" not in result
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assert "superdigest" not in result
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assert result["four_letter_word_allow_list"] == "*"
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assert result["log_storage_path"] == "/var/lib/clickhouse/coordination/log"
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assert result["log_storage_disk"] == "LocalLogDisk"
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assert (
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result["snapshot_storage_path"]
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== "/var/lib/clickhouse/coordination/snapshots"
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)
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assert result["snapshot_storage_disk"] == "LocalSnapshotDisk"
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assert result["session_timeout_ms"] == "30000"
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assert result["min_session_timeout_ms"] == "10000"
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assert result["operation_timeout_ms"] == "5000"
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assert result["dead_session_check_period_ms"] == "500"
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assert result["heart_beat_interval_ms"] == "500"
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assert result["election_timeout_lower_bound_ms"] == "1000"
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assert result["election_timeout_upper_bound_ms"] == "2000"
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assert result["reserved_log_items"] == "100000"
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assert result["snapshot_distance"] == "75"
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assert result["auto_forwarding"] == "true"
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assert result["shutdown_timeout"] == "5000"
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assert result["startup_timeout"] == "180000"
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assert result["raft_logs_level"] == "trace"
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assert result["rotate_log_storage_interval"] == "100000"
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assert result["snapshots_to_keep"] == "3"
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assert result["stale_log_gap"] == "10000"
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assert result["fresh_log_gap"] == "200"
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assert result["max_requests_batch_size"] == "100"
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assert result["max_requests_batch_bytes_size"] == "102400"
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assert result["max_flush_batch_size"] == "1000"
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assert result["max_request_queue_size"] == "100000"
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assert result["max_requests_quick_batch_size"] == "100"
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assert result["quorum_reads"] == "false"
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assert result["force_sync"] == "true"
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assert result["compress_logs"] == "false"
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assert result["compress_snapshots_with_zstd_format"] == "true"
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assert result["configuration_change_tries_count"] == "20"
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assert result["async_replication"] == "true"
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finally:
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close_keeper_socket(client)
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def test_cmd_isro(started_cluster):
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wait_nodes()
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assert keeper_utils.send_4lw_cmd(cluster, node1, "isro") == "rw"
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assert keeper_utils.send_4lw_cmd(cluster, node2, "isro") == "ro"
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def test_cmd_srvr(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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leader = keeper_utils.get_leader(cluster, [node1, node2, node3])
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reset_node_stats(leader)
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zk = get_fake_zk(leader.name, timeout=30.0)
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do_some_action(zk, create_cnt=10)
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data = keeper_utils.send_4lw_cmd(cluster, leader, cmd="srvr")
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print("srvr output -------------------------------------")
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print(data)
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reader = csv.reader(data.split("\n"), delimiter=":")
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result = {}
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for row in reader:
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if len(row) != 0:
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result[row[0].strip()] = row[1].strip()
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assert "ClickHouse Keeper version" in result
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assert "Latency min/avg/max" in result
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assert result["Received"] == "10"
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assert result["Sent"] == "10"
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assert int(result["Connections"]) == 1
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assert int(result["Zxid"], 16) > 10
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assert result["Mode"] == "leader"
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assert result["Node count"] == "14"
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finally:
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destroy_zk_client(zk)
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def test_cmd_stat(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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leader = keeper_utils.get_leader(cluster, [node1, node2, node3])
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reset_node_stats(leader)
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reset_conn_stats(leader)
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zk = get_fake_zk(leader.name, timeout=30.0)
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do_some_action(zk, create_cnt=10)
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data = keeper_utils.send_4lw_cmd(cluster, leader, cmd="stat")
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print("stat output -------------------------------------")
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print(data)
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# keeper statistics
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stats = [n for n in data.split("\n") if "=" not in n]
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reader = csv.reader(stats, delimiter=":")
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result = {}
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for row in reader:
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if len(row) != 0:
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result[row[0].strip()] = row[1].strip()
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assert "ClickHouse Keeper version" in result
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assert "Latency min/avg/max" in result
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assert result["Received"] == "10"
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assert result["Sent"] == "10"
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assert int(result["Connections"]) == 1
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assert int(result["Zxid"], 16) >= 10
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assert result["Mode"] == "leader"
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assert result["Node count"] == "14"
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# filter connection statistics
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cons = [n for n in data.split("\n") if "=" in n]
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# filter connection created by 'cons'
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cons = [n for n in cons if "recved=0" not in n and len(n) > 0]
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assert len(cons) == 1
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conn_stat = re.match(r"(.*?)[:].*[(](.*?)[)].*", cons[0].strip(), re.S).group(2)
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assert conn_stat is not None
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result = {}
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for col in conn_stat.split(","):
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col = col.strip().split("=")
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result[col[0]] = col[1]
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assert result["recved"] == "10"
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assert result["sent"] == "10"
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finally:
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destroy_zk_client(zk)
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def test_cmd_cons(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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reset_conn_stats()
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zk = get_fake_zk(node1.name, timeout=30.0)
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do_some_action(zk, create_cnt=10)
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="cons")
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print("cons output -------------------------------------")
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print(data)
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# filter connection created by 'cons'
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cons = [n for n in data.split("\n") if "recved=0" not in n and len(n) > 0]
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assert len(cons) == 1
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conn_stat = re.match(r"(.*?)[:].*[(](.*?)[)].*", cons[0].strip(), re.S).group(2)
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assert conn_stat is not None
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result = {}
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for col in conn_stat.split(","):
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col = col.strip().split("=")
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result[col[0]] = col[1]
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assert result["recved"] == "10"
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assert result["sent"] == "10"
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assert "sid" in result
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assert result["lop"] == "Create"
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assert "est" in result
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assert result["to"] == "30000"
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assert result["lcxid"] == "0x000000000000000a"
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assert "lzxid" in result
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assert "lresp" in result
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assert int(result["llat"]) >= 0
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assert int(result["minlat"]) >= 0
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assert int(result["avglat"]) >= 0
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assert int(result["maxlat"]) >= 0
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finally:
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destroy_zk_client(zk)
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def test_cmd_crst(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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reset_conn_stats()
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zk = get_fake_zk(node1.name, timeout=30.0)
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do_some_action(zk, create_cnt=10)
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="crst")
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print("crst output -------------------------------------")
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print(data)
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="cons")
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print("cons output(after crst) -------------------------------------")
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print(data)
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# 2 or 3 connections, 1 for 'crst', 1 for 'cons' command, 1 for zk
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# there can be a case when 'crst' connection is not cleaned before the cons call
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print("cons output(after crst) -------------------------------------")
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print(data)
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cons = [n for n in data.split("\n") if len(n) > 0]
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assert len(cons) == 2 or len(cons) == 3
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# connection for zk
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zk_conns = [n for n in cons if not n.__contains__("sid=0xffffffffffffffff")]
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# there can only be one
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assert len(zk_conns) == 1
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zk_conn = zk_conns[0]
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conn_stat = re.match(r"(.*?)[:].*[(](.*?)[)].*", zk_conn.strip(), re.S).group(2)
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assert conn_stat is not None
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result = {}
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for col in conn_stat.split(","):
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col = col.strip().split("=")
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result[col[0]] = col[1]
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assert result["recved"] == "0"
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assert result["sent"] == "0"
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assert "sid" in result
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assert result["lop"] == "NA"
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assert "est" in result
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assert result["to"] == "30000"
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assert "lcxid" not in result
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assert result["lzxid"] == "0xffffffffffffffff"
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assert result["lresp"] == "0"
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assert int(result["llat"]) == 0
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assert int(result["minlat"]) == 0
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assert int(result["avglat"]) == 0
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assert int(result["maxlat"]) == 0
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finally:
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destroy_zk_client(zk)
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def test_cmd_dump(started_cluster):
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zk = None
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try:
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wait_nodes()
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clear_znodes()
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reset_node_stats()
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zk = get_fake_zk(node1.name, timeout=30.0)
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do_some_action(zk, ephemeral_cnt=2)
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data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="dump")
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print("dump output -------------------------------------")
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print(data)
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list_data = data.split("\n")
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session_count = int(re.match(r".*[(](.*?)[)].*", list_data[0], re.S).group(1))
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assert session_count == 1
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assert "\t" + "/test_4lw_ephemeral_node_0" in list_data
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assert "\t" + "/test_4lw_ephemeral_node_1" in list_data
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finally:
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destroy_zk_client(zk)
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|
|
|
|
def test_cmd_wchs(started_cluster):
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
clear_znodes()
|
|
reset_node_stats()
|
|
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
do_some_action(zk, create_cnt=2, watch_cnt=2)
|
|
|
|
data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="wchs")
|
|
|
|
print("wchs output -------------------------------------")
|
|
print(data)
|
|
|
|
list_data = [n for n in data.split("\n") if len(n.strip()) > 0]
|
|
|
|
# 37 connections watching 632141 paths
|
|
# Total watches:632141
|
|
matcher = re.match(
|
|
r"([0-9].*) connections watching ([0-9].*) paths", list_data[0], re.S
|
|
)
|
|
conn_count = int(matcher.group(1))
|
|
watch_path_count = int(matcher.group(2))
|
|
watch_count = int(
|
|
re.match(r"Total watches:([0-9].*)", list_data[1], re.S).group(1)
|
|
)
|
|
|
|
assert conn_count == 1
|
|
assert watch_path_count == 2
|
|
assert watch_count == 2
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_wchc(started_cluster):
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
clear_znodes()
|
|
reset_node_stats()
|
|
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
do_some_action(zk, create_cnt=2, watch_cnt=2)
|
|
|
|
data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="wchc")
|
|
|
|
print("wchc output -------------------------------------")
|
|
print(data)
|
|
|
|
list_data = [n for n in data.split("\n") if len(n.strip()) > 0]
|
|
|
|
assert len(list_data) == 3
|
|
assert "\t" + "/test_4lw_normal_node_0" in list_data
|
|
assert "\t" + "/test_4lw_normal_node_1" in list_data
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_wchp(started_cluster):
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
clear_znodes()
|
|
reset_node_stats()
|
|
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
do_some_action(zk, create_cnt=2, watch_cnt=2)
|
|
|
|
data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="wchp")
|
|
|
|
print("wchp output -------------------------------------")
|
|
print(data)
|
|
|
|
list_data = [n for n in data.split("\n") if len(n.strip()) > 0]
|
|
|
|
assert len(list_data) == 4
|
|
assert "/test_4lw_normal_node_0" in list_data
|
|
assert "/test_4lw_normal_node_1" in list_data
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_csnp(started_cluster):
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="csnp")
|
|
|
|
print("csnp output -------------------------------------")
|
|
print(data)
|
|
|
|
try:
|
|
int(data)
|
|
assert True
|
|
except ValueError:
|
|
assert False
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_lgif(started_cluster):
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
clear_znodes()
|
|
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
do_some_action(zk, create_cnt=100)
|
|
|
|
data = keeper_utils.send_4lw_cmd(cluster, node1, cmd="lgif")
|
|
|
|
print("lgif output -------------------------------------")
|
|
print(data)
|
|
|
|
reader = csv.reader(data.split("\n"), delimiter="\t")
|
|
result = {}
|
|
|
|
for row in reader:
|
|
if len(row) != 0:
|
|
result[row[0]] = row[1]
|
|
|
|
assert int(result["first_log_idx"]) == 1
|
|
assert int(result["first_log_term"]) == 1
|
|
assert int(result["last_log_idx"]) >= 1
|
|
assert int(result["last_log_term"]) == 1
|
|
assert int(result["last_committed_log_idx"]) >= 1
|
|
assert int(result["leader_committed_log_idx"]) >= 1
|
|
assert int(result["target_committed_log_idx"]) >= 1
|
|
assert int(result["last_snapshot_idx"]) >= 1
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_rqld(started_cluster):
|
|
wait_nodes()
|
|
# node2 can not be leader
|
|
for node in [node1, node3]:
|
|
data = keeper_utils.send_4lw_cmd(cluster, node, cmd="rqld")
|
|
assert data == "Sent leadership request to leader."
|
|
|
|
print("rqld output -------------------------------------")
|
|
print(data)
|
|
|
|
if not keeper_utils.is_leader(cluster, node):
|
|
# pull wait to become leader
|
|
retry = 0
|
|
# TODO not a restrict way
|
|
while not keeper_utils.is_leader(cluster, node) and retry < 30:
|
|
time.sleep(1)
|
|
retry += 1
|
|
if retry == 30:
|
|
print(
|
|
node.name
|
|
+ " does not become leader after 30s, maybe there is something wrong."
|
|
)
|
|
assert keeper_utils.is_leader(cluster, node)
|
|
|
|
|
|
def test_cmd_clrs(started_cluster):
|
|
if node1.is_built_with_sanitizer():
|
|
return
|
|
|
|
def get_memory_purges():
|
|
return node1.query(
|
|
"SELECT value FROM system.events WHERE event = 'MemoryAllocatorPurge' SETTINGS system_events_show_zero_values = 1"
|
|
)
|
|
|
|
zk = None
|
|
try:
|
|
wait_nodes()
|
|
|
|
zk = get_fake_zk(node1.name, timeout=30.0)
|
|
|
|
paths = [f"/clrs_{i}" for i in range(10000)]
|
|
|
|
# we only count the events because we cannot reliably test memory usage of Keeper
|
|
# but let's create and delete nodes so the first purge needs to release some memory
|
|
create_transaction = zk.transaction()
|
|
for path in paths:
|
|
create_transaction.create(path)
|
|
create_transaction.commit()
|
|
|
|
delete_transaction = zk.transaction()
|
|
for path in paths:
|
|
delete_transaction.delete(path)
|
|
delete_transaction.commit()
|
|
|
|
# repeat multiple times to make sure MemoryAllocatorPurge isn't increased because of other reasons
|
|
for _ in range(5):
|
|
prev_purges = int(get_memory_purges())
|
|
keeper_utils.send_4lw_cmd(cluster, node1, cmd="clrs")
|
|
current_purges = int(get_memory_purges())
|
|
assert current_purges > prev_purges
|
|
prev_purges = current_purges
|
|
|
|
finally:
|
|
destroy_zk_client(zk)
|
|
|
|
|
|
def test_cmd_ydld(started_cluster):
|
|
wait_nodes()
|
|
for node in [node1, node3]:
|
|
data = keeper_utils.send_4lw_cmd(cluster, node, cmd="ydld")
|
|
assert data == "Sent yield leadership request to leader."
|
|
|
|
print("ydld output -------------------------------------")
|
|
print(data)
|
|
|
|
# Whenever there is a leader switch, there is a brief amount of time when any
|
|
# of the 4 letter commands will return empty result. Thus, we need to test for
|
|
# negative condition. So we can't use keeper_utils.is_leader() here and likewise
|
|
# in the while loop below.
|
|
if not keeper_utils.is_follower(cluster, node):
|
|
# wait for it to yield leadership
|
|
retry = 0
|
|
while not keeper_utils.is_follower(cluster, node) and retry < 30:
|
|
time.sleep(1)
|
|
retry += 1
|
|
if retry == 30:
|
|
print(
|
|
node.name
|
|
+ " did not become follower after 30s of yielding leadership, maybe there is something wrong."
|
|
)
|
|
assert keeper_utils.is_follower(cluster, node)
|