ClickHouse/tests/integration/test_log_family_s3/test.py

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import logging
import sys
import pytest
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from helpers.cluster import ClickHouseCluster
@pytest.fixture(scope="module")
def cluster():
try:
cluster = ClickHouseCluster(__file__)
cluster.add_instance(
"node",
main_configs=["configs/storage_configuration.xml", "configs/ssl.xml"],
with_minio=True,
)
logging.info("Starting cluster...")
cluster.start()
logging.info("Cluster started")
yield cluster
finally:
cluster.shutdown()
def assert_objects_count(cluster, objects_count, path="data/"):
minio = cluster.minio_client
s3_objects = list(minio.list_objects(cluster.minio_bucket, path, recursive=True))
if objects_count != len(s3_objects):
for s3_object in s3_objects:
object_meta = minio.stat_object(cluster.minio_bucket, s3_object.object_name)
logging.info("Existing S3 object: %s", str(object_meta))
assert objects_count == len(s3_objects)
# TinyLog: files: id.bin, sizes.json
# INSERT overwrites 1 file (`sizes.json`) and appends 1 file (`id.bin`), so
# files_overhead=1, files_overhead_per_insert=1
#
# Log: files: id.bin, __marks.mrk, sizes.json
# INSERT overwrites 1 file (`sizes.json`), and appends 2 files (`id.bin`, `__marks.mrk`), so
# files_overhead=1, files_overhead_per_insert=2
#
# StripeLog: files: data.bin, index.mrk, sizes.json
# INSERT overwrites 1 file (`sizes.json`), and appends 2 files (`index.mrk`, `data.bin`), so
# files_overhead=1, files_overhead_per_insert=2
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@pytest.mark.parametrize(
"log_engine,files_overhead,files_overhead_per_insert",
[
pytest.param("TinyLog", 1, 1, id="TinyLog"),
pytest.param("Log", 1, 2, id="Log"),
pytest.param("StripeLog", 1, 2, id="StripeLog"),
],
)
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def test_log_family_s3(cluster, log_engine, files_overhead, files_overhead_per_insert):
node = cluster.instances["node"]
node.query(
"CREATE TABLE s3_test (id UInt64) ENGINE={} SETTINGS disk = 's3'".format(
log_engine
)
)
try:
node.query("INSERT INTO s3_test SELECT number FROM numbers(5)")
assert node.query("SELECT * FROM s3_test") == "0\n1\n2\n3\n4\n"
assert_objects_count(cluster, files_overhead_per_insert + files_overhead)
node.query("INSERT INTO s3_test SELECT number + 5 FROM numbers(3)")
assert (
node.query("SELECT * FROM s3_test order by id")
== "0\n1\n2\n3\n4\n5\n6\n7\n"
)
assert_objects_count(cluster, files_overhead_per_insert * 2 + files_overhead)
node.query("INSERT INTO s3_test SELECT number + 8 FROM numbers(1)")
assert (
node.query("SELECT * FROM s3_test order by id")
== "0\n1\n2\n3\n4\n5\n6\n7\n8\n"
)
assert_objects_count(cluster, files_overhead_per_insert * 3 + files_overhead)
node.query("TRUNCATE TABLE s3_test")
assert_objects_count(cluster, 0)
finally:
node.query("DROP TABLE s3_test")
# Imitate case when error occurs while inserting into table.
# For examle S3::TooManyRequests.
# In that case we can update data file, but not the size file.
# So due to exception we should do truncate of the data file to undo the insert query.
# See FileChecker::repair().
def test_stripe_log_truncate(cluster):
node = cluster.instances["node"]
node.query(
"""
CREATE TABLE stripe_table (
a int
) ENGINE = StripeLog()
SETTINGS storage_policy='s3_no_retries'
"""
)
node.query("SYSTEM ENABLE FAILPOINT stripe_log_sink_write_fallpoint")
node.query(
"""
INSERT INTO stripe_table SELECT number FROM numbers(10)
""",
ignore_error=True,
)
node.query("SYSTEM DISABLE FAILPOINT stripe_log_sink_write_fallpoint")
node.query("SELECT count(*) FROM stripe_table") == "0\n"
node.query("INSERT INTO stripe_table SELECT number FROM numbers(10)")
node.query("SELECT count(*) FROM stripe_table") == "10\n"
# Make sure that everything is okey with the table after restart.
node.query("DETACH TABLE stripe_table")
node.query("ATTACH TABLE stripe_table")
assert node.query("DROP TABLE stripe_table") == ""