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https://github.com/ClickHouse/ClickHouse.git
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e148ef739d
Under use_compact_format_in_distributed_parts_names=1 and
internal_replication=true the server encodes all replicas for the
directory name for async INSERT into Distributed, and the directory name
looks like:
shard1_replica1,shard1_replica2,shard3_replica3
This is required for creating connections (to specific replicas only),
but in case of internal_replication=true, this can be avoided, since
this path will always includes all replicas.
This patch replaces all replicas with "_all_replicas" marker.
Note, that initial problem was that this path may overflow the NAME_MAX
if you will have more then 15 replicas, and the server will fail to
create the directory.
Also note, that changed directory name should not be a problem, since:
- empty directories will be removed since #16729
- and replicas encoded in the directory name is also supported anyway.
111 lines
3.9 KiB
Python
111 lines
3.9 KiB
Python
# pylint: disable=redefined-outer-name
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# pylint: disable=unused-argument
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# pylint: disable=line-too-long
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import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance('node', main_configs=['configs/remote_servers.xml'])
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cluster_param = pytest.mark.parametrize("cluster", [
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('test_cluster_internal_replication'),
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('test_cluster_no_internal_replication'),
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])
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def get_dist_path(cluster, table, dist_format):
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if dist_format == 0:
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return f'/var/lib/clickhouse/data/test/{table}/default@not_existing:9000'
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if cluster == 'test_cluster_internal_replication':
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return f'/var/lib/clickhouse/data/test/{table}/shard1_all_replicas'
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return f'/var/lib/clickhouse/data/test/{table}/shard1_replica1'
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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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node.query("create database test")
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yield cluster
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finally:
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cluster.shutdown()
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@cluster_param
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def test_single_file(started_cluster, cluster):
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node.query(
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"create table test.distr_1 (x UInt64, s String) engine = Distributed('{}', database, table)".format(cluster))
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node.query("insert into test.distr_1 values (1, 'a'), (2, 'bb'), (3, 'ccc')",
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settings={"use_compact_format_in_distributed_parts_names": "1"})
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path = get_dist_path(cluster, 'distr_1', 1)
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query = f"select * from file('{path}/1.bin', 'Distributed')"
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '1\ta\n2\tbb\n3\tccc\n'
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query = f"""
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create table t (x UInt64, s String) engine = File('Distributed', '{path}/1.bin');
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select * from t;
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"""
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '1\ta\n2\tbb\n3\tccc\n'
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node.query("drop table test.distr_1")
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@cluster_param
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def test_two_files(started_cluster, cluster):
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node.query(
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"create table test.distr_2 (x UInt64, s String) engine = Distributed('{}', database, table)".format(cluster))
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node.query("insert into test.distr_2 values (0, '_'), (1, 'a')", settings={
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"use_compact_format_in_distributed_parts_names": "1",
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})
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node.query("insert into test.distr_2 values (2, 'bb'), (3, 'ccc')", settings={
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"use_compact_format_in_distributed_parts_names": "1",
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})
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path = get_dist_path(cluster, 'distr_2', 1)
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query = f"select * from file('{path}/{{1,2,3,4}}.bin', 'Distributed') order by x"
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '0\t_\n1\ta\n2\tbb\n3\tccc\n'
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query = f"""
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create table t (x UInt64, s String) engine = File('Distributed', '{path}/{{1,2,3,4}}.bin');
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select * from t order by x;
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"""
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '0\t_\n1\ta\n2\tbb\n3\tccc\n'
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node.query("drop table test.distr_2")
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@cluster_param
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def test_single_file_old(started_cluster, cluster):
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node.query(
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"create table test.distr_3 (x UInt64, s String) engine = Distributed('{}', database, table)".format(cluster))
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node.query("insert into test.distr_3 values (1, 'a'), (2, 'bb'), (3, 'ccc')", settings={
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"use_compact_format_in_distributed_parts_names": "0",
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})
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path = get_dist_path(cluster, 'distr_3', 0)
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query = f"select * from file('{path}/1.bin', 'Distributed')"
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '1\ta\n2\tbb\n3\tccc\n'
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query = f"""
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create table t (x UInt64, s String) engine = File('Distributed', '{path}/1.bin');
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select * from t;
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"""
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out = node.exec_in_container(['/usr/bin/clickhouse', 'local', '--stacktrace', '-q', query])
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assert out == '1\ta\n2\tbb\n3\tccc\n'
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node.query("drop table test.distr_3")
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