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50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance("node")
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@pytest.fixture(scope="module", autouse=True)
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def start_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 test_memory_limit_success():
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if node.is_built_with_thread_sanitizer():
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pytest.skip(
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"tsan build is skipped because it slowly merges the parts, "
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"rather than failing over the memory limit"
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)
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node.query(
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"CREATE TABLE test_merge_oom ENGINE=AggregatingMergeTree ORDER BY id EMPTY AS SELECT number%1024 AS id, arrayReduce('groupArrayState', arrayMap(x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(20000)"
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)
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node.query("SYSTEM STOP MERGES test_merge_oom")
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node.query(
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"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce('groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
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)
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node.query(
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"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce('groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
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)
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node.query(
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"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce('groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
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)
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_, error = node.query_and_get_answer_with_error(
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"""
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SET optimize_throw_if_noop=1;
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SYSTEM START MERGES test_merge_oom;
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OPTIMIZE TABLE test_merge_oom FINAL;
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"""
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)
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assert not error
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node.query("DROP TABLE test_merge_oom")
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