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ClickHouse/dbms/tests/integration/test_multiple_disks/test.py

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import json
import pytest
import random
import re
import string
import threading
import time
from multiprocessing.dummy import Pool
from helpers.client import QueryRuntimeException
from helpers.cluster import ClickHouseCluster
from helpers.test_tools import TSV
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1',
config_dir='configs',
main_configs=['configs/logs_config.xml'],
with_zookeeper=True,
stay_alive=True,
tmpfs=['/jbod1:size=40M', '/jbod2:size=40M', '/external:size=200M'],
macros={"shard": 0, "replica": 1} )
node2 = cluster.add_instance('node2',
config_dir='configs',
main_configs=['configs/logs_config.xml'],
with_zookeeper=True,
stay_alive=True,
tmpfs=['/jbod1:size=40M', '/jbod2:size=40M', '/external:size=200M'],
macros={"shard": 0, "replica": 2} )
@pytest.fixture(scope="module")
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def test_system_tables(start_cluster):
expected_disks_data = [
{
"name": "default",
"path": "/var/lib/clickhouse/",
"keep_free_space": '1024',
},
{
"name": "jbod1",
"path": "/jbod1/",
"keep_free_space": '0',
},
{
"name": "jbod2",
"path": "/jbod2/",
"keep_free_space": '10485760',
},
{
"name": "external",
"path": "/external/",
"keep_free_space": '0',
}
]
click_disk_data = json.loads(node1.query("SELECT name, path, keep_free_space FROM system.disks FORMAT JSON"))["data"]
assert sorted(click_disk_data, key=lambda x: x["name"]) == sorted(expected_disks_data, key=lambda x: x["name"])
expected_policies_data = [
{
"policy_name": "small_jbod_with_external",
"volume_name": "main",
"volume_priority": "1",
"disks": ["jbod1"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "small_jbod_with_external",
"volume_name": "external",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "one_more_small_jbod_with_external",
"volume_name": "m",
"volume_priority": "1",
"disks": ["jbod1"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "one_more_small_jbod_with_external",
"volume_name": "e",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "jbods_with_external",
"volume_name": "main",
"volume_priority": "1",
"disks": ["jbod1", "jbod2"],
"max_data_part_size": "10485760",
"move_factor": 0.1,
},
{
"policy_name": "jbods_with_external",
"volume_name": "external",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "moving_jbod_with_external",
"volume_name": "main",
"volume_priority": "1",
"disks": ["jbod1"],
"max_data_part_size": "0",
"move_factor": 0.7,
},
{
"policy_name": "moving_jbod_with_external",
"volume_name": "external",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "0",
"move_factor": 0.7,
},
{
"policy_name": "default_disk_with_external",
"volume_name": "small",
"volume_priority": "1",
"disks": ["default"],
"max_data_part_size": "2097152",
"move_factor": 0.1,
},
{
"policy_name": "default_disk_with_external",
"volume_name": "big",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "20971520",
"move_factor": 0.1,
},
{
"policy_name": "special_warning_policy",
"volume_name": "special_warning_zero_volume",
"volume_priority": "1",
"disks": ["default"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "special_warning_policy",
"volume_name": "special_warning_default_volume",
"volume_priority": "2",
"disks": ["external"],
"max_data_part_size": "0",
"move_factor": 0.1,
},
{
"policy_name": "special_warning_policy",
"volume_name": "special_warning_small_volume",
"volume_priority": "3",
"disks": ["jbod1"],
"max_data_part_size": "1024",
"move_factor": 0.1,
},
{
"policy_name": "special_warning_policy",
"volume_name": "special_warning_big_volume",
"volume_priority": "4",
"disks": ["jbod2"],
"max_data_part_size": "1024000000",
"move_factor": 0.1,
},
]
clickhouse_policies_data = json.loads(node1.query("SELECT * FROM system.storage_policies WHERE policy_name != 'default' FORMAT JSON"))["data"]
def key(x):
return (x["policy_name"], x["volume_name"], x["volume_priority"])
assert sorted(clickhouse_policies_data, key=key) == sorted(expected_policies_data, key=key)
def test_query_parser(start_cluster):
try:
with pytest.raises(QueryRuntimeException):
node1.query("""
CREATE TABLE table_with_absent_policy (
d UInt64
) ENGINE = MergeTree()
ORDER BY d
SETTINGS storage_policy='very_exciting_policy'
""")
with pytest.raises(QueryRuntimeException):
node1.query("""
CREATE TABLE table_with_absent_policy (
d UInt64
) ENGINE = MergeTree()
ORDER BY d
SETTINGS storage_policy='jbod1'
""")
node1.query("""
CREATE TABLE table_with_normal_policy (
d UInt64
) ENGINE = MergeTree()
ORDER BY d
SETTINGS storage_policy='default'
""")
node1.query("INSERT INTO table_with_normal_policy VALUES (5)")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE table_with_normal_policy MOVE PARTITION 'all' TO VOLUME 'some_volume'")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE table_with_normal_policy MOVE PARTITION 'all' TO DISK 'some_volume'")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE table_with_normal_policy MOVE PART 'xxxxx' TO DISK 'jbod1'")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE table_with_normal_policy MOVE PARTITION 'yyyy' TO DISK 'jbod1'")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE table_with_normal_policy MODIFY SETTING storage_policy='moving_jbod_with_external'")
finally:
node1.query("DROP TABLE IF EXISTS table_with_normal_policy")
@pytest.mark.parametrize("name,engine", [
("test_alter_policy","MergeTree()"),
("replicated_test_alter_policy","ReplicatedMergeTree('/clickhouse/test_alter_policy', '1')",),
])
def test_alter_policy(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
d UInt64
) ENGINE = {engine}
ORDER BY d
SETTINGS storage_policy='small_jbod_with_external'
""".format(name=name, engine=engine))
assert node1.query("""SELECT storage_policy FROM system.tables WHERE name = '{name}'""".format(name=name)) == "small_jbod_with_external\n"
with pytest.raises(QueryRuntimeException):
node1.query("""ALTER TABLE {name} MODIFY SETTING storage_policy='one_more_small_jbod_with_external'""".format(name=name))
assert node1.query("""SELECT storage_policy FROM system.tables WHERE name = '{name}'""".format(name=name)) == "small_jbod_with_external\n"
node1.query("""ALTER TABLE {name} MODIFY SETTING storage_policy='jbods_with_external'""".format(name=name))
assert node1.query("""SELECT storage_policy FROM system.tables WHERE name = '{name}'""".format(name=name)) == "jbods_with_external\n"
with pytest.raises(QueryRuntimeException):
node1.query("""ALTER TABLE {name} MODIFY SETTING storage_policy='small_jbod_with_external'""".format(name=name))
assert node1.query("""SELECT storage_policy FROM system.tables WHERE name = '{name}'""".format(name=name)) == "jbods_with_external\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
def get_random_string(length):
return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(length))
def get_used_disks_for_table(node, table_name):
return node.query("select disk_name from system.parts where table == '{}' and active=1 order by modification_time".format(table_name)).strip().split('\n')
def test_no_warning_about_zero_max_data_part_size(start_cluster):
def get_log(node):
return node.exec_in_container(["bash", "-c", "cat /var/log/clickhouse-server/clickhouse-server.log"])
for node in (node1, node2):
node.query("""
CREATE TABLE default.test_warning_table (
s String
) ENGINE = MergeTree
ORDER BY tuple()
SETTINGS storage_policy='small_jbod_with_external'
""")
node.query("""
DROP TABLE default.test_warning_table
""")
log = get_log(node)
assert not re.search("Warning.*Volume.*special_warning_zero_volume", log)
assert not re.search("Warning.*Volume.*special_warning_default_volume", log)
assert re.search("Warning.*Volume.*special_warning_small_volume", log)
assert not re.search("Warning.*Volume.*special_warning_big_volume", log)
@pytest.mark.parametrize("name,engine", [
("mt_on_jbod","MergeTree()"),
("replicated_mt_on_jbod","ReplicatedMergeTree('/clickhouse/replicated_mt_on_jbod', '1')",),
])
def test_round_robin(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
d UInt64
) ENGINE = {engine}
ORDER BY d
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
# first should go to the jbod1
node1.query("insert into {} select * from numbers(10000)".format(name))
used_disk = get_used_disks_for_table(node1, name)
assert len(used_disk) == 1, 'More than one disk used for single insert'
node1.query("insert into {} select * from numbers(10000, 10000)".format(name))
used_disks = get_used_disks_for_table(node1, name)
assert len(used_disks) == 2, 'Two disks should be used for two parts'
assert used_disks[0] != used_disks[1], "Should write to different disks"
node1.query("insert into {} select * from numbers(20000, 10000)".format(name))
used_disks = get_used_disks_for_table(node1, name)
# jbod1 -> jbod2 -> jbod1 -> jbod2 ... etc
assert len(used_disks) == 3
assert used_disks[0] != used_disks[1]
assert used_disks[2] == used_disks[0]
finally:
node1.query("DROP TABLE IF EXISTS {}".format(name))
@pytest.mark.parametrize("name,engine", [
("mt_with_huge_part","MergeTree()"),
("replicated_mt_with_huge_part","ReplicatedMergeTree('/clickhouse/replicated_mt_with_huge_part', '1')",),
])
def test_max_data_part_size(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
data = [] # 10MB in total
for i in range(10):
data.append(get_random_string(1024 * 1024)) # 1MB row
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
used_disks = get_used_disks_for_table(node1, name)
assert len(used_disks) == 1
assert used_disks[0] == 'external'
finally:
node1.query("DROP TABLE IF EXISTS {}".format(name))
@pytest.mark.skip(reason="Flappy test")
@pytest.mark.parametrize("name,engine", [
("mt_with_overflow","MergeTree()"),
("replicated_mt_with_overflow","ReplicatedMergeTree('/clickhouse/replicated_mt_with_overflow', '1')",),
])
def test_jbod_overflow(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='small_jbod_with_external'
""".format(name=name, engine=engine))
node1.query("SYSTEM STOP MERGES")
# small jbod size is 40MB, so lets insert 5MB batch 7 times
for i in range(7):
data = [] # 5MB in total
for i in range(5):
data.append(get_random_string(1024 * 1024)) # 1MB row
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
used_disks = get_used_disks_for_table(node1, name)
assert all(disk == 'jbod1' for disk in used_disks)
# should go to the external disk (jbod is overflown)
data = [] # 10MB in total
for i in range(10):
data.append(get_random_string(1024 * 1024)) # 1MB row
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
used_disks = get_used_disks_for_table(node1, name)
assert used_disks[-1] == 'external'
node1.query("SYSTEM START MERGES")
time.sleep(1)
node1.query("OPTIMIZE TABLE {} FINAL".format(name))
time.sleep(2)
disks_for_merges = node1.query("SELECT disk_name FROM system.parts WHERE table == '{}' AND level >= 1 and active = 1 ORDER BY modification_time".format(name)).strip().split('\n')
assert all(disk == 'external' for disk in disks_for_merges)
finally:
node1.query("DROP TABLE IF EXISTS {}".format(name))
@pytest.mark.parametrize("name,engine", [
("moving_mt","MergeTree()"),
("moving_replicated_mt","ReplicatedMergeTree('/clickhouse/moving_replicated_mt', '1')",),
])
def test_background_move(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external'
""".format(name=name, engine=engine))
for i in range(5):
data = [] # 5MB in total
for i in range(5):
data.append(get_random_string(1024 * 1024)) # 1MB row
# small jbod size is 40MB, so lets insert 5MB batch 5 times
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
used_disks = get_used_disks_for_table(node1, name)
retry = 20
i = 0
while not sum(1 for x in used_disks if x == 'jbod1') <= 2 and i < retry:
time.sleep(0.5)
used_disks = get_used_disks_for_table(node1, name)
i += 1
assert sum(1 for x in used_disks if x == 'jbod1') <= 2
# first (oldest) part was moved to external
assert used_disks[0] == 'external'
path = node1.query("SELECT path_on_disk FROM system.part_log WHERE table = '{}' AND event_type='MovePart' ORDER BY event_time LIMIT 1".format(name))
# first (oldest) part was moved to external
assert path.startswith("/external")
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.skip(reason="Flappy test")
@pytest.mark.parametrize("name,engine", [
("stopped_moving_mt","MergeTree()"),
("stopped_moving_replicated_mt","ReplicatedMergeTree('/clickhouse/stopped_moving_replicated_mt', '1')",),
])
def test_start_stop_moves(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external'
""".format(name=name, engine=engine))
node1.query("INSERT INTO {} VALUES ('HELLO')".format(name))
node1.query("INSERT INTO {} VALUES ('WORLD')".format(name))
used_disks = get_used_disks_for_table(node1, name)
assert all(d == "jbod1" for d in used_disks), "All writes shoud go to jbods"
first_part = node1.query("SELECT name FROM system.parts WHERE table = '{}' and active = 1 ORDER BY modification_time LIMIT 1".format(name)).strip()
node1.query("SYSTEM STOP MOVES")
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE {} MOVE PART '{}' TO VOLUME 'external'".format(name, first_part))
used_disks = get_used_disks_for_table(node1, name)
assert all(d == "jbod1" for d in used_disks), "Blocked moves doesn't actually move something"
node1.query("SYSTEM START MOVES")
node1.query("ALTER TABLE {} MOVE PART '{}' TO VOLUME 'external'".format(name, first_part))
disk = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and name = '{}' and active = 1".format(name, first_part)).strip()
assert disk == "external"
node1.query("TRUNCATE TABLE {}".format(name))
node1.query("SYSTEM STOP MOVES {}".format(name))
node1.query("SYSTEM STOP MERGES {}".format(name))
for i in range(5):
data = [] # 5MB in total
for i in range(5):
data.append(get_random_string(1024 * 1024)) # 1MB row
# jbod size is 40MB, so lets insert 5MB batch 7 times
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
used_disks = get_used_disks_for_table(node1, name)
retry = 5
i = 0
while not sum(1 for x in used_disks if x == 'jbod1') <= 2 and i < retry:
time.sleep(0.1)
used_disks = get_used_disks_for_table(node1, name)
i += 1
# first (oldest) part doesn't move anywhere
assert used_disks[0] == 'jbod1'
node1.query("SYSTEM START MOVES {}".format(name))
node1.query("SYSTEM START MERGES {}".format(name))
# wait sometime until background backoff finishes
retry = 30
i = 0
while not sum(1 for x in used_disks if x == 'jbod1') <= 2 and i < retry:
time.sleep(1)
used_disks = get_used_disks_for_table(node1, name)
i += 1
assert sum(1 for x in used_disks if x == 'jbod1') <= 2
# first (oldest) part moved to external
assert used_disks[0] == 'external'
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
def get_path_for_part_from_part_log(node, table, part_name):
node.query("SYSTEM FLUSH LOGS")
path = node.query("SELECT path_on_disk FROM system.part_log WHERE table = '{}' and part_name = '{}' ORDER BY event_time DESC LIMIT 1".format(table, part_name))
return path.strip()
def get_paths_for_partition_from_part_log(node, table, partition_id):
node.query("SYSTEM FLUSH LOGS")
paths = node.query("SELECT path_on_disk FROM system.part_log WHERE table = '{}' and partition_id = '{}' ORDER BY event_time DESC".format(table, partition_id))
return paths.strip().split('\n')
@pytest.mark.parametrize("name,engine", [
("altering_mt","MergeTree()"),
#("altering_replicated_mt","ReplicatedMergeTree('/clickhouse/altering_replicated_mt', '1')",),
# SYSTEM STOP MERGES doesn't disable merges assignments
])
def test_alter_move(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
node1.query("SYSTEM STOP MERGES {}".format(name)) # to avoid conflicts
node1.query("INSERT INTO {} VALUES(toDate('2019-03-15'), 65)".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-03-16'), 66)".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-04-10'), 42)".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-04-11'), 43)".format(name))
used_disks = get_used_disks_for_table(node1, name)
assert all(d.startswith("jbod") for d in used_disks), "All writes should go to jbods"
first_part = node1.query("SELECT name FROM system.parts WHERE table = '{}' and active = 1 ORDER BY modification_time LIMIT 1".format(name)).strip()
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PART '{}' TO VOLUME 'external'".format(name, first_part))
disk = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and name = '{}' and active = 1".format(name, first_part)).strip()
assert disk == 'external'
assert get_path_for_part_from_part_log(node1, name, first_part).startswith("/external")
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PART '{}' TO DISK 'jbod1'".format(name, first_part))
disk = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and name = '{}' and active = 1".format(name, first_part)).strip()
assert disk == 'jbod1'
assert get_path_for_part_from_part_log(node1, name, first_part).startswith("/jbod1")
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PARTITION 201904 TO VOLUME 'external'".format(name))
disks = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and partition = '201904' and active = 1".format(name)).strip().split('\n')
assert len(disks) == 2
assert all(d == "external" for d in disks)
assert all(path.startswith("/external") for path in get_paths_for_partition_from_part_log(node1, name, '201904')[:2])
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PARTITION 201904 TO DISK 'jbod2'".format(name))
disks = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and partition = '201904' and active = 1".format(name)).strip().split('\n')
assert len(disks) == 2
assert all(d == "jbod2" for d in disks)
assert all(path.startswith("/jbod2") for path in get_paths_for_partition_from_part_log(node1, name, '201904')[:2])
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "4\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.parametrize("volume_or_disk", [
"DISK",
"VOLUME"
])
def test_alter_move_half_of_partition(start_cluster, volume_or_disk):
name = "alter_move_half_of_partition"
engine = "MergeTree()"
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
node1.query("SYSTEM STOP MERGES {}".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-03-15'), 65)".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-03-16'), 42)".format(name))
used_disks = get_used_disks_for_table(node1, name)
assert all(d.startswith("jbod") for d in used_disks), "All writes should go to jbods"
time.sleep(1)
parts = node1.query("SELECT name FROM system.parts WHERE table = '{}' and active = 1".format(name)).splitlines()
assert len(parts) == 2
node1.query("ALTER TABLE {} MOVE PART '{}' TO VOLUME 'external'".format(name, parts[0]))
disks = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and name = '{}' and active = 1".format(name, parts[0])).splitlines()
assert disks == ["external"]
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PARTITION 201903 TO {volume_or_disk} 'external'".format(name, volume_or_disk=volume_or_disk))
disks = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and partition = '201903' and active = 1".format(name)).splitlines()
assert disks == ["external"]*2
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "2\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.parametrize("volume_or_disk", [
"DISK",
"VOLUME"
])
def test_alter_double_move_partition(start_cluster, volume_or_disk):
name = "alter_double_move_partition"
engine = "MergeTree()"
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
node1.query("SYSTEM STOP MERGES {}".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-03-15'), 65)".format(name))
node1.query("INSERT INTO {} VALUES(toDate('2019-03-16'), 42)".format(name))
used_disks = get_used_disks_for_table(node1, name)
assert all(d.startswith("jbod") for d in used_disks), "All writes should go to jbods"
time.sleep(1)
node1.query("ALTER TABLE {} MOVE PARTITION 201903 TO {volume_or_disk} 'external'".format(name, volume_or_disk=volume_or_disk))
disks = node1.query("SELECT disk_name FROM system.parts WHERE table = '{}' and partition = '201903' and active = 1".format(name)).splitlines()
assert disks == ["external"]*2
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "2\n"
time.sleep(1)
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE {} MOVE PARTITION 201903 TO {volume_or_disk} 'external'".format(name, volume_or_disk=volume_or_disk))
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
def produce_alter_move(node, name):
move_type = random.choice(["PART", "PARTITION"])
if move_type == "PART":
for _ in range(10):
try:
parts = node1.query("SELECT name from system.parts where table = '{}' and active = 1".format(name)).strip().split('\n')
break
except QueryRuntimeException:
pass
else:
raise Exception("Cannot select from system.parts")
move_part = random.choice(["'" + part + "'" for part in parts])
else:
move_part = random.choice([201903, 201904])
move_disk = random.choice(["DISK", "VOLUME"])
if move_disk == "DISK":
move_volume = random.choice(["'external'", "'jbod1'", "'jbod2'"])
else:
move_volume = random.choice(["'main'", "'external'"])
try:
node1.query("ALTER TABLE {} MOVE {mt} {mp} TO {md} {mv}".format(
name, mt=move_type, mp=move_part, md=move_disk, mv=move_volume))
except QueryRuntimeException as ex:
pass
@pytest.mark.skip(reason="Flappy test")
@pytest.mark.parametrize("name,engine", [
("concurrently_altering_mt","MergeTree()"),
("concurrently_altering_replicated_mt","ReplicatedMergeTree('/clickhouse/concurrently_altering_replicated_mt', '1')",),
])
def test_concurrent_alter_move(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
values = list({ random.randint(1, 1000000) for _ in range(0, 1000) })
def insert(num):
for i in range(num):
day = random.randint(11, 30)
value = values.pop()
month = '0' + str(random.choice([3, 4]))
node1.query("INSERT INTO {} VALUES(toDate('2019-{m}-{d}'), {v})".format(name, m=month, d=day, v=value))
def alter_move(num):
for i in range(num):
produce_alter_move(node1, name)
def alter_update(num):
for i in range(num):
node1.query("ALTER TABLE {} UPDATE number = number + 1 WHERE 1".format(name))
def optimize_table(num):
for i in range(num):
node1.query("OPTIMIZE TABLE {} FINAL".format(name))
p = Pool(15)
tasks = []
for i in range(5):
tasks.append(p.apply_async(insert, (100,)))
tasks.append(p.apply_async(alter_move, (100,)))
tasks.append(p.apply_async(alter_update, (100,)))
tasks.append(p.apply_async(optimize_table, (100,)))
for task in tasks:
task.get(timeout=120)
assert node1.query("SELECT 1") == "1\n"
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "500\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.skip(reason="Flappy test")
@pytest.mark.parametrize("name,engine", [
("concurrently_dropping_mt","MergeTree()"),
("concurrently_dropping_replicated_mt","ReplicatedMergeTree('/clickhouse/concurrently_dropping_replicated_mt', '1')",),
])
def test_concurrent_alter_move_and_drop(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
values = list({ random.randint(1, 1000000) for _ in range(0, 1000) })
def insert(num):
for i in range(num):
day = random.randint(11, 30)
value = values.pop()
month = '0' + str(random.choice([3, 4]))
node1.query("INSERT INTO {} VALUES(toDate('2019-{m}-{d}'), {v})".format(name, m=month, d=day, v=value))
def alter_move(num):
for i in range(num):
produce_alter_move(node1, name)
def alter_drop(num):
for i in range(num):
partition = random.choice([201903, 201904])
drach = random.choice(["drop", "detach"])
node1.query("ALTER TABLE {} {} PARTITION {}".format(name, drach, partition))
insert(100)
p = Pool(15)
tasks = []
for i in range(5):
tasks.append(p.apply_async(insert, (100,)))
tasks.append(p.apply_async(alter_move, (100,)))
tasks.append(p.apply_async(alter_drop, (100,)))
for task in tasks:
task.get(timeout=60)
assert node1.query("SELECT 1") == "1\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.parametrize("name,engine", [
("detach_attach_mt","MergeTree()"),
("replicated_detach_attach_mt","ReplicatedMergeTree('/clickhouse/replicated_detach_attach_mt', '1')",),
])
def test_detach_attach(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external'
""".format(name=name, engine=engine))
data = [] # 5MB in total
for i in range(5):
data.append(get_random_string(1024 * 1024)) # 1MB row
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
node1.query("ALTER TABLE {} DETACH PARTITION tuple()".format(name))
assert node1.query("SELECT count() FROM {}".format(name)).strip() == "0"
assert node1.query("SELECT disk FROM system.detached_parts WHERE table = '{}'".format(name)).strip() == "jbod1"
node1.query("ALTER TABLE {} ATTACH PARTITION tuple()".format(name))
assert node1.query("SELECT count() FROM {}".format(name)).strip() == "5"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.parametrize("name,engine", [
("mutating_mt","MergeTree()"),
("replicated_mutating_mt","ReplicatedMergeTree('/clickhouse/replicated_mutating_mt', '1')",),
])
def test_mutate_to_another_disk(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
s1 String
) ENGINE = {engine}
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external'
""".format(name=name, engine=engine))
for i in range(5):
data = [] # 5MB in total
for i in range(5):
data.append(get_random_string(1024 * 1024)) # 1MB row
node1.query("INSERT INTO {} VALUES {}".format(name, ','.join(["('" + x + "')" for x in data])))
node1.query("ALTER TABLE {} UPDATE s1 = concat(s1, 'x') WHERE 1".format(name))
retry = 20
while node1.query("SELECT * FROM system.mutations WHERE is_done = 0") != "" and retry > 0:
retry -= 1
time.sleep(0.5)
if node1.query("SELECT latest_fail_reason FROM system.mutations WHERE table = '{}'".format(name)) == "":
assert node1.query("SELECT sum(endsWith(s1, 'x')) FROM {}".format(name)) == "25\n"
else: # mutation failed, let's try on another disk
print "Mutation failed"
node1.query("OPTIMIZE TABLE {} FINAL".format(name))
node1.query("ALTER TABLE {} UPDATE s1 = concat(s1, 'x') WHERE 1".format(name))
retry = 20
while node1.query("SELECT * FROM system.mutations WHERE is_done = 0") != "" and retry > 0:
retry -= 1
time.sleep(0.5)
assert node1.query("SELECT sum(endsWith(s1, 'x')) FROM {}".format(name)) == "25\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
@pytest.mark.skip(reason="Flappy test")
@pytest.mark.parametrize("name,engine", [
("alter_modifying_mt","MergeTree()"),
("replicated_alter_modifying_mt","ReplicatedMergeTree('/clickhouse/replicated_alter_modifying_mt', '1')",),
])
def test_concurrent_alter_modify(start_cluster, name, engine):
try:
node1.query("""
CREATE TABLE {name} (
EventDate Date,
number UInt64
) ENGINE = {engine}
ORDER BY tuple()
PARTITION BY toYYYYMM(EventDate)
SETTINGS storage_policy='jbods_with_external'
""".format(name=name, engine=engine))
values = list({ random.randint(1, 1000000) for _ in range(0, 1000) })
def insert(num):
for i in range(num):
day = random.randint(11, 30)
value = values.pop()
month = '0' + str(random.choice([3, 4]))
node1.query("INSERT INTO {} VALUES(toDate('2019-{m}-{d}'), {v})".format(name, m=month, d=day, v=value))
def alter_move(num):
for i in range(num):
produce_alter_move(node1, name)
def alter_modify(num):
for i in range(num):
column_type = random.choice(["UInt64", "String"])
node1.query("ALTER TABLE {} MODIFY COLUMN number {}".format(name, column_type))
insert(100)
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "100\n"
p = Pool(50)
tasks = []
for i in range(5):
tasks.append(p.apply_async(alter_move, (100,)))
tasks.append(p.apply_async(alter_modify, (100,)))
for task in tasks:
task.get(timeout=120)
assert node1.query("SELECT 1") == "1\n"
assert node1.query("SELECT COUNT() FROM {}".format(name)) == "100\n"
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
def test_simple_replication_and_moves(start_cluster):
try:
for i, node in enumerate([node1, node2]):
node.query("""
CREATE TABLE replicated_table_for_moves (
s1 String
) ENGINE = ReplicatedMergeTree('/clickhouse/replicated_table_for_moves', '{}')
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external', old_parts_lifetime=1, cleanup_delay_period=1, cleanup_delay_period_random_add=2
""".format(i + 1))
def insert(num):
for i in range(num):
node = random.choice([node1, node2])
data = [] # 1MB in total
for i in range(2):
data.append(get_random_string(512 * 1024)) # 500KB value
node.query("INSERT INTO replicated_table_for_moves VALUES {}".format(','.join(["('" + x + "')" for x in data])))
def optimize(num):
for i in range(num):
node = random.choice([node1, node2])
node.query("OPTIMIZE TABLE replicated_table_for_moves FINAL")
p = Pool(60)
tasks = []
tasks.append(p.apply_async(insert, (20,)))
tasks.append(p.apply_async(optimize, (20,)))
for task in tasks:
task.get(timeout=60)
node1.query("SYSTEM SYNC REPLICA replicated_table_for_moves", timeout=5)
node2.query("SYSTEM SYNC REPLICA replicated_table_for_moves", timeout=5)
node1.query("SELECT COUNT() FROM replicated_table_for_moves") == "40\n"
node2.query("SELECT COUNT() FROM replicated_table_for_moves") == "40\n"
data = [] # 1MB in total
for i in range(2):
data.append(get_random_string(512 * 1024)) # 500KB value
time.sleep(3) # wait until old parts will be deleted
node1.query("SYSTEM STOP MERGES")
node2.query("SYSTEM STOP MERGES")
node1.query("INSERT INTO replicated_table_for_moves VALUES {}".format(','.join(["('" + x + "')" for x in data])))
node2.query("INSERT INTO replicated_table_for_moves VALUES {}".format(','.join(["('" + x + "')" for x in data])))
time.sleep(3) # nothing was moved
disks1 = get_used_disks_for_table(node1, "replicated_table_for_moves")
disks2 = get_used_disks_for_table(node2, "replicated_table_for_moves")
node1.query("SYSTEM START MERGES")
node2.query("SYSTEM START MERGES")
set(disks1) == set(["jbod1", "external"])
set(disks2) == set(["jbod1", "external"])
finally:
for node in [node1, node2]:
node.query("DROP TABLE IF EXISTS replicated_table_for_moves")
def test_download_appropriate_disk(start_cluster):
try:
for i, node in enumerate([node1, node2]):
node.query("""
CREATE TABLE replicated_table_for_download (
s1 String
) ENGINE = ReplicatedMergeTree('/clickhouse/replicated_table_for_download', '{}')
ORDER BY tuple()
SETTINGS storage_policy='moving_jbod_with_external', old_parts_lifetime=1, cleanup_delay_period=1, cleanup_delay_period_random_add=2
""".format(i + 1))
data = []
for i in range(50):
data.append(get_random_string(1024 * 1024)) # 1MB value
node1.query("INSERT INTO replicated_table_for_download VALUES {}".format(','.join(["('" + x + "')" for x in data])))
for _ in range(10):
try:
print "Syncing replica"
node2.query("SYSTEM SYNC REPLICA replicated_table_for_download")
break
except:
time.sleep(0.5)
disks2 = get_used_disks_for_table(node2, "replicated_table_for_download")
assert set(disks2) == set(["external"])
finally:
for node in [node1, node2]:
node.query("DROP TABLE IF EXISTS replicated_table_for_download")
def test_rename(start_cluster):
try:
node1.query("""
CREATE TABLE default.renaming_table (
s String
) ENGINE = MergeTree
ORDER BY tuple()
SETTINGS storage_policy='small_jbod_with_external'
""")
for _ in range(5):
data = []
for i in range(10):
data.append(get_random_string(1024 * 1024)) # 1MB value
node1.query("INSERT INTO renaming_table VALUES {}".format(','.join(["('" + x + "')" for x in data])))
disks = get_used_disks_for_table(node1, "renaming_table")
assert len(disks) > 1
assert node1.query("SELECT COUNT() FROM default.renaming_table") == "50\n"
node1.query("RENAME TABLE default.renaming_table TO default.renaming_table1")
assert node1.query("SELECT COUNT() FROM default.renaming_table1") == "50\n"
with pytest.raises(QueryRuntimeException):
node1.query("SELECT COUNT() FROM default.renaming_table")
node1.query("CREATE DATABASE IF NOT EXISTS test")
node1.query("RENAME TABLE default.renaming_table1 TO test.renaming_table2")
assert node1.query("SELECT COUNT() FROM test.renaming_table2") == "50\n"
with pytest.raises(QueryRuntimeException):
node1.query("SELECT COUNT() FROM default.renaming_table1")
finally:
node1.query("DROP TABLE IF EXISTS default.renaming_table")
node1.query("DROP TABLE IF EXISTS default.renaming_table1")
node1.query("DROP TABLE IF EXISTS test.renaming_table2")
def test_freeze(start_cluster):
try:
node1.query("""
CREATE TABLE default.freezing_table (
d Date,
s String
) ENGINE = MergeTree
ORDER BY tuple()
PARTITION BY toYYYYMM(d)
SETTINGS storage_policy='small_jbod_with_external'
""")
for _ in range(5):
data = []
dates = []
for i in range(10):
data.append(get_random_string(1024 * 1024)) # 1MB value
dates.append("toDate('2019-03-05')")
node1.query("INSERT INTO freezing_table VALUES {}".format(','.join(["(" + d + ", '" + s + "')" for d, s in zip(dates, data)])))
disks = get_used_disks_for_table(node1, "freezing_table")
assert len(disks) > 1
assert node1.query("SELECT COUNT() FROM default.freezing_table") == "50\n"
node1.query("ALTER TABLE freezing_table FREEZE PARTITION 201903")
# check shadow files (backups) exists
node1.exec_in_container(["bash", "-c", "find /jbod1/shadow -name '*.mrk2' | grep '.*'"])
node1.exec_in_container(["bash", "-c", "find /external/shadow -name '*.mrk2' | grep '.*'"])
finally:
node1.query("DROP TABLE IF EXISTS default.freezing_table")
node1.exec_in_container(["rm", "-rf", "/jbod1/shadow", "/external/shadow"])
def test_kill_while_insert(start_cluster):
try:
name = "test_kill_while_insert"
node1.query("""
CREATE TABLE {name} (
s String
) ENGINE = MergeTree
ORDER BY tuple()
SETTINGS storage_policy='small_jbod_with_external'
""".format(name=name))
data = []
dates = []
for i in range(10):
data.append(get_random_string(1024 * 1024)) # 1MB value
node1.query("INSERT INTO {name} VALUES {}".format(','.join(["('" + s + "')" for s in data]), name=name))
disks = get_used_disks_for_table(node1, name)
assert set(disks) == {"jbod1"}
start_time = time.time()
long_select = threading.Thread(target=node1.query, args=("SELECT sleep(3) FROM {name}".format(name=name),))
long_select.start()
time.sleep(0.5)
node1.query("ALTER TABLE {name} MOVE PARTITION tuple() TO DISK 'external'".format(name=name))
assert time.time() - start_time < 2
node1.restart_clickhouse(kill=True)
try:
long_select.join()
except:
""""""
time.sleep(0.5)
assert node1.query("SELECT count() FROM {name}".format(name=name)).splitlines() == ["10"]
finally:
try:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
except:
"""ClickHouse may be inactive at this moment and we don't want to mask a meaningful exception."""
def test_move_while_merge(start_cluster):
try:
name = "test_move_while_merge"
node1.query("""
CREATE TABLE {name} (
n Int64
) ENGINE = MergeTree
ORDER BY sleep(2)
SETTINGS storage_policy='small_jbod_with_external'
""".format(name=name))
node1.query("INSERT INTO {name} VALUES (1)".format(name=name))
node1.query("INSERT INTO {name} VALUES (2)".format(name=name))
parts = node1.query("SELECT name FROM system.parts WHERE table = '{name}' AND active = 1".format(name=name)).splitlines()
assert len(parts) == 2
def optimize():
node1.query("OPTIMIZE TABLE {name}".format(name=name))
optimize = threading.Thread(target=optimize)
optimize.start()
time.sleep(0.5)
with pytest.raises(QueryRuntimeException):
node1.query("ALTER TABLE {name} MOVE PART '{part}' TO DISK 'external'".format(name=name, part=parts[0]))
exiting = False
no_exception = {}
def alter():
while not exiting:
try:
node1.query("ALTER TABLE {name} MOVE PART '{part}' TO DISK 'external'".format(name=name, part=parts[0]))
no_exception['missing'] = 'exception'
break
except QueryRuntimeException:
""""""
alter_thread = threading.Thread(target=alter)
alter_thread.start()
optimize.join()
time.sleep(0.5)
exiting = True
alter_thread.join()
assert len(no_exception) == 0
assert node1.query("SELECT count() FROM {name}".format(name=name)).splitlines() == ["2"]
finally:
node1.query("DROP TABLE IF EXISTS {name}".format(name=name))
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