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94 lines
4.1 KiB
Python
94 lines
4.1 KiB
Python
#!/usr/bin/env python3
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import pytest
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import time
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from helpers.cluster import ClickHouseCluster
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from helpers.network import PartitionManager
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from helpers.test_tools import assert_eq_with_retry
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import random
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import string
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import json
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', with_zookeeper=True)
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node2 = cluster.add_instance('node2', with_zookeeper=True)
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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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yield cluster
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finally:
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cluster.shutdown()
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def get_random_string(length):
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return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(length))
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def test_system_replicated_fetches(started_cluster):
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node1.query("CREATE TABLE t (key UInt64, data String) ENGINE = ReplicatedMergeTree('/clickhouse/test/t', '1') ORDER BY tuple()")
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node2.query("CREATE TABLE t (key UInt64, data String) ENGINE = ReplicatedMergeTree('/clickhouse/test/t', '2') ORDER BY tuple()")
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with PartitionManager() as pm:
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node2.query("SYSTEM STOP FETCHES t")
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node1.query("INSERT INTO t SELECT number, '{}' FROM numbers(10000)".format(get_random_string(104857)))
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pm.add_network_delay(node1, 80)
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node2.query("SYSTEM START FETCHES t")
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fetches_result = []
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for _ in range(1000):
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result = json.loads(node2.query("SELECT * FROM system.replicated_fetches FORMAT JSON"))
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if not result["data"]:
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if fetches_result:
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break
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time.sleep(0.1)
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else:
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fetches_result.append(result["data"][0])
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print(fetches_result[-1])
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time.sleep(0.1)
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node2.query("SYSTEM SYNC REPLICA t", timeout=10)
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assert node2.query("SELECT COUNT() FROM t") == "10000\n"
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for elem in fetches_result:
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elem['bytes_read_compressed'] = float(elem['bytes_read_compressed'])
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elem['total_size_bytes_compressed'] = float(elem['total_size_bytes_compressed'])
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elem['progress'] = float(elem['progress'])
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elem['elapsed'] = float(elem['elapsed'])
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assert len(fetches_result) > 0
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first_non_empty = fetches_result[0]
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assert first_non_empty['database'] == "default"
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assert first_non_empty['table'] == "t"
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assert first_non_empty['source_replica_hostname'] == 'node1'
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assert first_non_empty['source_replica_port'] == 9009
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assert first_non_empty['source_replica_path'] == '/clickhouse/test/t/replicas/1'
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assert first_non_empty['interserver_scheme'] == 'http'
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assert first_non_empty['result_part_name'] == 'all_0_0_0'
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assert first_non_empty['result_part_path'].startswith('/var/lib/clickhouse/')
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assert first_non_empty['result_part_path'].endswith('all_0_0_0/')
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assert first_non_empty['partition_id'] == 'all'
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assert first_non_empty['URI'].startswith('http://node1:9009/?endpoint=DataPartsExchange')
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for elem in fetches_result:
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assert elem['bytes_read_compressed'] <= elem['total_size_bytes_compressed'], "Bytes read ({}) more than total bytes ({}). It's a bug".format(elem['bytes_read_compressed'], elem['total_size_bytes_compressed'])
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assert 0.0 <= elem['progress'] <= 1.0, "Progress shouldn't less than 0 and bigger than 1, got {}".format(elem['progress'])
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assert 0.0 <= elem['elapsed'], "Elapsed time must be greater than 0, got {}".format(elem['elapsed'])
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prev_progress = first_non_empty['progress']
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for elem in fetches_result:
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assert elem['progress'] >= prev_progress, "Progress decreasing prev{}, next {}? It's a bug".format(prev_progress, elem['progress'])
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prev_progress = elem['progress']
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prev_bytes = first_non_empty['bytes_read_compressed']
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for elem in fetches_result:
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assert elem['bytes_read_compressed'] >= prev_bytes, "Bytes read decreasing prev {}, next {}? It's a bug".format(prev_bytes, elem['bytes_read_compressed'])
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prev_bytes = elem['bytes_read_compressed']
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prev_elapsed = first_non_empty['elapsed']
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for elem in fetches_result:
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assert elem['elapsed'] >= prev_elapsed, "Elapsed time decreasing prev {}, next {}? It's a bug".format(prev_elapsed, elem['elapsed'])
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prev_elapsed = elem['elapsed']
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