mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-13 11:04:10 +00:00
47 lines
1.2 KiB
Bash
Executable File
47 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
. $CURDIR/../shell_config.sh
|
|
|
|
set -e
|
|
|
|
$CLICKHOUSE_CLIENT --query "DROP TABLE IF EXISTS test1";
|
|
$CLICKHOUSE_CLIENT --query "CREATE TABLE test1 (x UInt8) ENGINE = MergeTree ORDER BY tuple()";
|
|
|
|
function thread1()
|
|
{
|
|
while true; do
|
|
$CLICKHOUSE_CLIENT --query "ALTER TABLE test1 MODIFY COLUMN x Nullable(UInt8)"
|
|
$CLICKHOUSE_CLIENT --query "ALTER TABLE test1 MODIFY COLUMN x UInt8"
|
|
done
|
|
}
|
|
|
|
function thread2()
|
|
{
|
|
while true; do
|
|
$CLICKHOUSE_CLIENT --query "SELECT x FROM test1 WHERE x IN (SELECT x FROM remote('127.0.0.2', currentDatabase(), test1))" --format Null
|
|
done
|
|
}
|
|
|
|
# https://stackoverflow.com/questions/9954794/execute-a-shell-function-with-timeout
|
|
export -f thread1;
|
|
export -f thread2;
|
|
|
|
TIMEOUT=10
|
|
|
|
timeout $TIMEOUT bash -c thread1 2> /dev/null &
|
|
timeout $TIMEOUT bash -c thread2 2> /dev/null &
|
|
|
|
timeout $TIMEOUT bash -c thread1 2> /dev/null &
|
|
timeout $TIMEOUT bash -c thread2 2> /dev/null &
|
|
|
|
timeout $TIMEOUT bash -c thread1 2> /dev/null &
|
|
timeout $TIMEOUT bash -c thread2 2> /dev/null &
|
|
|
|
timeout $TIMEOUT bash -c thread1 2> /dev/null &
|
|
timeout $TIMEOUT bash -c thread2 2> /dev/null &
|
|
|
|
wait
|
|
|
|
$CLICKHOUSE_CLIENT -q "DROP TABLE test1"
|