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https://github.com/ClickHouse/ClickHouse.git
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103 lines
3.4 KiB
Python
103 lines
3.4 KiB
Python
import time
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from contextlib import contextmanager
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import pytest
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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 TSV
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from helpers.client import CommandRequest
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from helpers.client import QueryTimeoutExceedException
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', main_configs=["configs/conf.d/merge_tree.xml", "configs/conf.d/remote_servers.xml"], with_zookeeper=True, macros={"layer": 0, "shard": 0, "replica": 1})
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node2 = cluster.add_instance('node2', main_configs=["configs/conf.d/merge_tree.xml", "configs/conf.d/remote_servers.xml"], with_zookeeper=True, macros={"layer": 0, "shard": 0, "replica": 2})
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nodes = [node1, node2]
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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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pass
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cluster.shutdown()
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def test_deduplication_window_in_seconds(started_cluster):
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node = node1
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node1.query("""
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CREATE TABLE simple ON CLUSTER test_cluster (date Date, id UInt32)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/simple', '{replica}', date, id, 8192)""")
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node.query("INSERT INTO simple VALUES (0, 0)")
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time.sleep(1)
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node.query("INSERT INTO simple VALUES (0, 0)") # deduplication works here
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node.query("INSERT INTO simple VALUES (0, 1)")
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assert TSV(node.query("SELECT count() FROM simple")) == TSV("2\n")
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# wait clean thread
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time.sleep(2)
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assert TSV.toMat(node.query("SELECT count() FROM system.zookeeper WHERE path='/clickhouse/tables/0/simple/blocks'"))[0][0] == "1"
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node.query("INSERT INTO simple VALUES (0, 0)") # deduplication doesn't works here, the first hash node was deleted
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assert TSV.toMat(node.query("SELECT count() FROM simple"))[0][0] == "3"
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node1.query("""DROP TABLE simple ON CLUSTER test_cluster""")
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# Currently this test just reproduce incorrect behavior that sould be fixed
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@pytest.mark.skip(reason="Flapping test")
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def test_deduplication_works_in_case_of_intensive_inserts(started_cluster):
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inserters = []
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fetchers = []
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node1.query("""
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CREATE TABLE simple ON CLUSTER test_cluster (date Date, id UInt32)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/simple', '{replica}', date, id, 8192)""")
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node1.query("INSERT INTO simple VALUES (0, 0)")
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for node in nodes:
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host = node.ip_address
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inserters.append(CommandRequest(['/bin/bash'], timeout=10, stdin="""
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set -e
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for i in `seq 1000`; do
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{} --host {} -q "INSERT INTO simple VALUES (0, 0)"
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done
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""".format(cluster.get_client_cmd(), host)))
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fetchers.append(CommandRequest(['/bin/bash'], timeout=10, stdin="""
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set -e
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for i in `seq 1000`; do
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res=`{} --host {} -q "SELECT count() FROM simple"`
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if [[ $? -ne 0 || $res -ne 1 ]]; then
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echo "Selected $res elements! Host: {}" 1>&2
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exit -1
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fi;
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done
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""".format(cluster.get_client_cmd(), host, node.name)))
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# There were not errors during INSERTs
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for inserter in inserters:
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try:
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inserter.get_answer()
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except QueryTimeoutExceedException:
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# Only timeout is accepted
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pass
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# There were not errors during SELECTs
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for fetcher in fetchers:
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try:
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fetcher.get_answer()
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except QueryTimeoutExceedException:
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# Only timeout is accepted
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pass
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node1.query("""DROP TABLE simple ON CLUSTER test_cluster""")
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