ClickHouse/tests/integration/test_mutations_with_merge_tree/test.py

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import time
import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
instance_test_mutations = cluster.add_instance(
"test_mutations_with_merge_tree",
main_configs=["configs/config.xml"],
user_configs=["configs/users.xml"],
)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
instance_test_mutations.query(
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"""CREATE TABLE test_mutations_with_ast_elements(date Date, a UInt64, b String) ENGINE = MergeTree PARTITION BY toYYYYMM(date) ORDER BY (a, date)"""
)
instance_test_mutations.query(
"""INSERT INTO test_mutations_with_ast_elements SELECT '2019-07-29' AS date, 1, toString(number) FROM numbers(1) SETTINGS force_index_by_date = 0, force_primary_key = 0"""
)
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yield cluster
finally:
cluster.shutdown()
@pytest.mark.skip(reason="Skipping mutations in partition does not work")
def test_mutations_in_partition_background(started_cluster):
try:
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numbers = 100
name = "test_mutations_in_partition"
instance_test_mutations.query(
f"""CREATE TABLE {name} (date Date, a UInt64, b String) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY a"""
)
instance_test_mutations.query(
f"""INSERT INTO {name} SELECT '2019-07-29' AS date, number, toString(number) FROM numbers({numbers})"""
)
for i in range(0, numbers, 3):
instance_test_mutations.query(
f"""ALTER TABLE {name} DELETE IN PARTITION {i} WHERE a = {i}"""
)
for i in range(1, numbers, 3):
instance_test_mutations.query(
f"""ALTER TABLE {name} UPDATE b = 'changed' IN PARTITION {i} WHERE a = {i} """
)
def count_and_changed():
return instance_test_mutations.query(
f"SELECT count(), countIf(b == 'changed') FROM {name} SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines()
all_done = False
for wait_times_for_mutation in range(
100
): # wait for replication 80 seconds max
time.sleep(0.8)
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if count_and_changed() == ["66,33"]:
all_done = True
break
print(
instance_test_mutations.query(
f"SELECT mutation_id, command, parts_to_do, is_done, latest_failed_part, latest_fail_reason, parts_to_do_names FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"
)
)
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assert (count_and_changed(), all_done) == (["66,33"], True)
assert instance_test_mutations.query(
f"SELECT count(), sum(is_done) FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines() == ["67,67"]
finally:
instance_test_mutations.query(f"""DROP TABLE {name}""")
@pytest.mark.skip(reason="Skipping mutations in partition does not work")
@pytest.mark.parametrize("sync", [("last",), ("all",)])
def test_mutations_in_partition_sync(started_cluster, sync):
try:
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numbers = 10
name = "test_mutations_in_partition_sync"
instance_test_mutations.query(
f"""CREATE TABLE {name} (date Date, a UInt64, b String) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY a"""
)
instance_test_mutations.query(
f"""INSERT INTO {name} SELECT '2019-07-29' AS date, number, toString(number) FROM numbers({numbers})"""
)
for i in range(0, numbers, 3):
instance_test_mutations.query(
f"""ALTER TABLE {name} DELETE IN PARTITION {i} WHERE a = {i}"""
+ (" SETTINGS mutations_sync = 1" if sync == "all" else "")
)
for reverse_index, i in reversed(
list(enumerate(reversed(range(1, numbers, 3))))
):
instance_test_mutations.query(
f"""ALTER TABLE {name} UPDATE b = 'changed' IN PARTITION {i} WHERE a = {i}"""
+ (
" SETTINGS mutations_sync = 1"
if not reverse_index or sync == "all"
else ""
)
)
def count_and_changed():
return instance_test_mutations.query(
f"SELECT count(), countIf(b == 'changed') FROM {name} SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines()
print(
instance_test_mutations.query(
f"SELECT mutation_id, command, parts_to_do, is_done, latest_failed_part, latest_fail_reason FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"
)
)
assert count_and_changed() == ["6,3"]
assert instance_test_mutations.query(
f"SELECT count(), sum(is_done) FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines() == ["7,7"]
finally:
instance_test_mutations.query(f"""DROP TABLE {name}""")
def test_mutations_with_merge_background_task(started_cluster):
instance_test_mutations.query(
"""SYSTEM STOP MERGES test_mutations_with_ast_elements"""
)
## The number of asts per query is 15
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for execution_times_for_mutation in range(100):
instance_test_mutations.query(
"""ALTER TABLE test_mutations_with_ast_elements DELETE WHERE 1 = 1 AND toUInt32(b) IN (1)"""
)
all_done = False
for wait_times_for_mutation in range(100): # wait for replication 80 seconds max
time.sleep(0.8)
def get_done_mutations(instance):
instance_test_mutations.query(
"""DETACH TABLE test_mutations_with_ast_elements"""
)
instance_test_mutations.query(
"""ATTACH TABLE test_mutations_with_ast_elements"""
)
return int(
instance.query(
"SELECT sum(is_done) FROM system.mutations WHERE table = 'test_mutations_with_ast_elements' SETTINGS force_index_by_date = 0, force_primary_key = 0"
).rstrip()
)
if get_done_mutations(instance_test_mutations) == 100:
all_done = True
break
print(
instance_test_mutations.query(
"SELECT mutation_id, command, parts_to_do, is_done FROM system.mutations WHERE table = 'test_mutations_with_ast_elements' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"
)
)
assert all_done
def test_mutations_with_truncate_table(started_cluster):
instance_test_mutations.query(
"""SYSTEM STOP MERGES test_mutations_with_ast_elements"""
)
## The number of asts per query is 15
for execute_number in range(100):
instance_test_mutations.query(
"""ALTER TABLE test_mutations_with_ast_elements DELETE WHERE 1 = 1 AND toUInt32(b) IN (1)"""
)
instance_test_mutations.query("TRUNCATE TABLE test_mutations_with_ast_elements")
assert (
instance_test_mutations.query(
"SELECT COUNT() FROM system.mutations WHERE table = 'test_mutations_with_ast_elements SETTINGS force_index_by_date = 0, force_primary_key = 0'"
).rstrip()
== "0"
)
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@pytest.mark.skip(reason="Skipping mutations in partition does not work")
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def test_mutations_will_not_hang_for_non_existing_parts_sync(started_cluster):
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try:
numbers = 100
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name = "test_mutations_will_not_hang_for_non_existing_parts_sync"
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instance_test_mutations.query(
f"""CREATE TABLE {name} (date Date, a UInt64, b String) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY a"""
)
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instance_test_mutations.query(
f"""INSERT INTO {name} SELECT '2019-07-29' AS date, number, toString(number) FROM numbers({numbers})"""
)
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for i in range(0, numbers, 3):
instance_test_mutations.query(
f"""ALTER TABLE {name} DELETE IN PARTITION {i+1000} WHERE a = {i} SETTINGS mutations_sync = 1"""
)
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def count():
return instance_test_mutations.query(
f"SELECT count() FROM {name} SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines()
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print(
instance_test_mutations.query(
f"SELECT mutation_id, command, parts_to_do, is_done, latest_failed_part, latest_fail_reason, parts_to_do_names FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"
)
)
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assert count() == [f"{numbers}"]
assert instance_test_mutations.query(
f"SELECT count(), sum(is_done) FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines() == [f"34,34"]
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finally:
instance_test_mutations.query(f"""DROP TABLE {name}""")
@pytest.mark.skip(reason="Skipping mutations in partition does not work")
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def test_mutations_will_not_hang_for_non_existing_parts_async(started_cluster):
try:
numbers = 100
name = "test_mutations_will_not_hang_for_non_existing_parts_async"
instance_test_mutations.query(
f"""CREATE TABLE {name} (date Date, a UInt64, b String) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY a"""
)
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instance_test_mutations.query(
f"""INSERT INTO {name} SELECT '2019-07-29' AS date, number, toString(number) FROM numbers({numbers})"""
)
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for i in range(0, numbers, 3):
instance_test_mutations.query(
f"""ALTER TABLE {name} DELETE IN PARTITION {i+1000} WHERE a = {i}"""
)
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def count():
return instance_test_mutations.query(
f"SELECT count() FROM {name} SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines()
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def count_and_sum_is_done():
return instance_test_mutations.query(
f"SELECT count(), sum(is_done) FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT CSV"
).splitlines()
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all_done = False
for wait_times_for_mutation in range(
100
): # wait for replication 80 seconds max
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time.sleep(0.8)
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if count_and_sum_is_done() == ["34,34"]:
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all_done = True
break
print(
instance_test_mutations.query(
f"SELECT mutation_id, command, parts_to_do, is_done, latest_failed_part, latest_fail_reason, parts_to_do_names FROM system.mutations WHERE table = '{name}' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"
)
)
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assert count() == [f"{numbers}"]
assert count_and_sum_is_done() == ["34,34"]
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finally:
instance_test_mutations.query(f"""DROP TABLE {name}""")