ClickHouse/tests/queries/0_stateless/02242_delete_user_race.sh

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#!/usr/bin/env bash
# Tags: race, no-fasttest, no-parallel, no-upgrade-check
# Test tries to reproduce a race between threads:
# - deletes user
# - creates user
# - uses it as session user
# - apply role to the user
#
# https://github.com/ClickHouse/ClickHouse/issues/35714
set -e
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=../shell_config.sh
. "$CURDIR"/../shell_config.sh
$CLICKHOUSE_CLIENT -nm -q "
DROP ROLE IF EXISTS test_role_02242;
CREATE ROLE test_role_02242;
"
function delete_user()
{
$CLICKHOUSE_CLIENT -q "DROP USER IF EXISTS test_user_02242" ||:
}
function create_and_login_user()
{
$CLICKHOUSE_CLIENT -q "CREATE USER IF NOT EXISTS test_user_02242" ||:
$CLICKHOUSE_CLIENT -u "test_user_02242" -q "SELECT COUNT(*) FROM system.session_log WHERE user == 'test_user_02242'" > /dev/null ||:
}
function set_role()
{
$CLICKHOUSE_CLIENT -q "SET ROLE test_role_02242 TO test_user_02242" ||:
}
export -f delete_user
export -f create_and_login_user
export -f set_role
TIMEOUT=10
for (( i = 0 ; i < 100; ++i ))
do
clickhouse_client_loop_timeout $TIMEOUT create_and_login_user 2> /dev/null &
clickhouse_client_loop_timeout $TIMEOUT delete_user 2> /dev/null &
clickhouse_client_loop_timeout $TIMEOUT set_role 2> /dev/null &
done
wait
$CLICKHOUSE_CLIENT -q "DROP ROLE IF EXISTS test_role_02242"
$CLICKHOUSE_CLIENT -q "DROP USER IF EXISTS test_user_02242"