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Merge branch 'master' of github.com:yandex/ClickHouse into remove-obsolete-code
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commit
fd11d0a0ae
@ -376,74 +376,6 @@ def test_in_memory(start_cluster):
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"Wide\t1\n")
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def test_in_memory_wal(start_cluster):
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# Merges are disabled in config
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for i in range(5):
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insert_random_data('wal_table', node11, 50)
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node12.query("SYSTEM SYNC REPLICA wal_table", timeout=20)
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def check(node, rows, parts):
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node.query("SELECT count() FROM wal_table") == "{}\n".format(rows)
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node.query(
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"SELECT count() FROM system.parts WHERE table = 'wal_table' AND part_type = 'InMemory'") == "{}\n".format(
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parts)
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check(node11, 250, 5)
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check(node12, 250, 5)
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# WAL works at inserts
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node11.restart_clickhouse(kill=True)
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check(node11, 250, 5)
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# WAL works at fetches
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node12.restart_clickhouse(kill=True)
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check(node12, 250, 5)
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insert_random_data('wal_table', node11, 50)
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node12.query("SYSTEM SYNC REPLICA wal_table", timeout=20)
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# Disable replication
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with PartitionManager() as pm:
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pm.partition_instances(node11, node12)
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check(node11, 300, 6)
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wal_file = "/var/lib/clickhouse/data/default/wal_table/wal.bin"
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# Corrupt wal file
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# Truncate it to it's size minus 10 bytes
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node11.exec_in_container(['bash', '-c', 'truncate --size="$(($(stat -c "%s" {}) - 10))" {}'.format(wal_file, wal_file)],
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privileged=True, user='root')
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node11.restart_clickhouse(kill=True)
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# Broken part is lost, but other restored successfully
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check(node11, 250, 5)
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# WAL with blocks from 0 to 4
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broken_wal_file = "/var/lib/clickhouse/data/default/wal_table/wal_0_4.bin"
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# Check file exists
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node11.exec_in_container(['bash', '-c', 'test -f {}'.format(broken_wal_file)])
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# Fetch lost part from replica
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node11.query("SYSTEM SYNC REPLICA wal_table", timeout=20)
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check(node11, 300, 6)
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# Check that new data is written to new wal, but old is still exists for restoring
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# Check file not empty
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node11.exec_in_container(['bash', '-c', 'test -s {}'.format(wal_file)])
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# Check file exists
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node11.exec_in_container(['bash', '-c', 'test -f {}'.format(broken_wal_file)])
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# Data is lost without WAL
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node11.query("ALTER TABLE wal_table MODIFY SETTING in_memory_parts_enable_wal = 0")
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with PartitionManager() as pm:
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pm.partition_instances(node11, node12)
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insert_random_data('wal_table', node11, 50)
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check(node11, 350, 7)
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node11.restart_clickhouse(kill=True)
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check(node11, 300, 6)
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def test_in_memory_wal_rotate(start_cluster):
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# Write every part to single wal
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node11.query("ALTER TABLE restore_table MODIFY SETTING write_ahead_log_max_bytes = 10")
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