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Remove flaky test_page_cache
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parent
e7e30d67fb
commit
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@ -329,75 +329,6 @@ def test_replicated_database(cluster):
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node2.query("DROP DATABASE rdb SYNC")
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def test_page_cache(cluster):
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node = cluster.instances["node2"]
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global uuids
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assert len(uuids) == 3
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for i in range(3):
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node.query(
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"""
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CREATE TABLE test{} UUID '{}'
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(id Int32) ENGINE = MergeTree() ORDER BY id
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SETTINGS storage_policy = 'web';
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""".format(
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i, uuids[i]
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)
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)
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result1 = node.query(
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f"SELECT sum(cityHash64(*)) FROM test{i} SETTINGS use_page_cache_for_disks_without_file_cache=1 -- test cold cache"
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)
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result2 = node.query(
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f"SELECT sum(cityHash64(*)) FROM test{i} SETTINGS use_page_cache_for_disks_without_file_cache=1 -- test warm cache"
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)
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result3 = node.query(
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f"SELECT sum(cityHash64(*)) FROM test{i} SETTINGS use_page_cache_for_disks_without_file_cache=0 -- test no cache"
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)
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assert result1 == result3
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assert result2 == result3
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node.query("SYSTEM FLUSH LOGS")
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def get_profile_events(query_name):
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text = node.query(
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f"SELECT ProfileEvents.Names, ProfileEvents.Values FROM system.query_log ARRAY JOIN ProfileEvents WHERE query LIKE '% -- {query_name}' AND type = 'QueryFinish'"
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)
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res = {}
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for line in text.split("\n"):
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if line == "":
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continue
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name, value = line.split("\t")
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res[name] = int(value)
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return res
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ev1 = get_profile_events("test cold cache")
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assert ev1.get("PageCacheChunkMisses", 0) > 0
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assert (
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ev1.get("DiskConnectionsCreated", 0) + ev1.get("DiskConnectionsReused", 0)
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> 0
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)
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ev2 = get_profile_events("test warm cache")
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assert ev2.get("PageCacheChunkDataHits", 0) > 0
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assert ev2.get("PageCacheChunkMisses", 0) == 0
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assert (
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ev2.get("DiskConnectionsCreated", 0) + ev2.get("DiskConnectionsReused", 0)
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== 0
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)
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ev3 = get_profile_events("test no cache")
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assert ev3.get("PageCacheChunkDataHits", 0) == 0
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assert ev3.get("PageCacheChunkMisses", 0) == 0
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assert (
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ev3.get("DiskConnectionsCreated", 0) + ev3.get("DiskConnectionsReused", 0)
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> 0
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)
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node.query("DROP TABLE test{} SYNC".format(i))
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print(f"Ok {i}")
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def test_config_reload(cluster):
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node1 = cluster.instances["node5"]
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table_name = "config_reload"
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