ClickHouse/tests/queries/0_stateless/01004_rename_deadlock.sh

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#!/usr/bin/env bash
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CURDIR"/../shell_config.sh
set -e
$CLICKHOUSE_CLIENT --query "DROP TABLE IF EXISTS test1";
$CLICKHOUSE_CLIENT --query "DROP TABLE IF EXISTS test2";
$CLICKHOUSE_CLIENT --query "CREATE TABLE test1 (x UInt8) ENGINE = MergeTree ORDER BY x";
$CLICKHOUSE_CLIENT --query "CREATE TABLE test2 (x UInt8) ENGINE = MergeTree ORDER BY x";
function thread1()
{
while true; do
$CLICKHOUSE_CLIENT --query "RENAME TABLE test1 TO test_tmp, test2 TO test1, test_tmp TO test2"
done
}
function thread2()
{
while true; do
$CLICKHOUSE_CLIENT --query "SELECT * FROM test1 UNION ALL SELECT * FROM test2" --format Null
done
}
function thread3()
{
while true; do
# NOTE: database = $CLICKHOUSE_DATABASE is unwanted
$CLICKHOUSE_CLIENT --query "SELECT * FROM system.tables" --format Null
done
}
# https://stackoverflow.com/questions/9954794/execute-a-shell-function-with-timeout
export -f thread1;
export -f thread2;
export -f thread3;
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TIMEOUT=10
timeout $TIMEOUT bash -c thread1 2> /dev/null &
timeout $TIMEOUT bash -c thread2 2> /dev/null &
timeout $TIMEOUT bash -c thread3 2> /dev/null &
timeout $TIMEOUT bash -c thread1 2> /dev/null &
timeout $TIMEOUT bash -c thread2 2> /dev/null &
timeout $TIMEOUT bash -c thread3 2> /dev/null &
timeout $TIMEOUT bash -c thread1 2> /dev/null &
timeout $TIMEOUT bash -c thread2 2> /dev/null &
timeout $TIMEOUT bash -c thread3 2> /dev/null &
timeout $TIMEOUT bash -c thread1 2> /dev/null &
timeout $TIMEOUT bash -c thread2 2> /dev/null &
timeout $TIMEOUT bash -c thread3 2> /dev/null &
wait
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sleep 1
$CLICKHOUSE_CLIENT -q "DROP TABLE test1"
$CLICKHOUSE_CLIENT -q "DROP TABLE test2"