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118 lines
3.9 KiB
Python
118 lines
3.9 KiB
Python
import logging
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import os
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import time
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import pytest
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from helpers.client import QueryRuntimeException
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from helpers.cluster import ClickHouseCluster
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logging.getLogger().setLevel(logging.INFO)
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logging.getLogger().addHandler(logging.StreamHandler())
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# Runs custom python-based S3 endpoint.
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def run_endpoint(cluster):
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logging.info("Starting custom S3 endpoint")
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container_id = cluster.get_container_id('resolver')
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current_dir = os.path.dirname(__file__)
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cluster.copy_file_to_container(container_id, os.path.join(current_dir, "s3_endpoint", "endpoint.py"), "endpoint.py")
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cluster.exec_in_container(container_id, ["python", "endpoint.py"], detach=True)
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# Wait for S3 endpoint start
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for attempt in range(10):
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ping_response = cluster.exec_in_container(cluster.get_container_id('resolver'),
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["curl", "-s", "http://resolver:8080/"], nothrow=True)
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if ping_response != 'OK':
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if attempt == 9:
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assert ping_response == 'OK', 'Expected "OK", but got "{}"'.format(ping_response)
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else:
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time.sleep(1)
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else:
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break
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logging.info("S3 endpoint started")
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def fail_request(cluster, request):
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response = cluster.exec_in_container(cluster.get_container_id('resolver'),
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["curl", "-s", "http://resolver:8080/fail_request/{}".format(request)])
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assert response == 'OK', 'Expected "OK", but got "{}"'.format(response)
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@pytest.fixture(scope="module")
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def cluster():
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try:
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cluster = ClickHouseCluster(__file__)
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cluster.add_instance("node",
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main_configs=["configs/config.d/log_conf.xml", "configs/config.d/storage_conf.xml"],
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with_minio=True)
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logging.info("Starting cluster...")
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cluster.start()
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logging.info("Cluster started")
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run_endpoint(cluster)
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yield cluster
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finally:
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cluster.shutdown()
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@pytest.fixture(autouse=True)
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def drop_table(cluster):
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yield
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node = cluster.instances["node"]
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node.query("DROP TABLE IF EXISTS s3_failover_test NO DELAY")
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# S3 request will be failed for an appropriate part file write.
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FILES_PER_PART_BASE = 5 # partition.dat, default_compression_codec.txt, count.txt, columns.txt, checksums.txt
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FILES_PER_PART_WIDE = FILES_PER_PART_BASE + 1 + 1 + 3 * 2 # Primary index, MinMax, Mark and data file for column(s)
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FILES_PER_PART_COMPACT = FILES_PER_PART_BASE + 1 + 1 + 2
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@pytest.mark.parametrize(
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"min_bytes_for_wide_part,request_count",
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[
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(0, FILES_PER_PART_WIDE),
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(1024 * 1024, FILES_PER_PART_COMPACT)
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]
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)
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def test_write_failover(cluster, min_bytes_for_wide_part, request_count):
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node = cluster.instances["node"]
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node.query(
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"""
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CREATE TABLE s3_failover_test (
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dt Date,
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id Int64,
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data String
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) ENGINE=MergeTree()
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ORDER BY id
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PARTITION BY dt
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SETTINGS storage_policy='s3', min_bytes_for_wide_part={}
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"""
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.format(min_bytes_for_wide_part)
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)
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for request in range(request_count + 1):
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# Fail N-th request to S3.
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fail_request(cluster, request + 1)
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data = "('2020-03-01',0,'data'),('2020-03-01',1,'data')"
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positive = request == request_count
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try:
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node.query("INSERT INTO s3_failover_test VALUES {}".format(data))
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assert positive, "Insert query should be failed, request {}".format(request)
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except QueryRuntimeException as e:
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assert not positive, "Insert query shouldn't be failed, request {}".format(request)
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assert str(e).find("Expected Error") != -1, "Unexpected error {}".format(str(e))
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if positive:
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# Disable request failing.
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fail_request(cluster, 0)
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assert node.query("CHECK TABLE s3_failover_test") == '1\n'
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assert node.query("SELECT * FROM s3_failover_test FORMAT Values") == data
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