ClickHouse/tests/queries/0_stateless/00980_alter_settings_race.sh

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#!/usr/bin/env bash
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
. $CURDIR/../shell_config.sh
$CLICKHOUSE_CLIENT --query="DROP TABLE IF EXISTS table_for_concurrent_alter"
$CLICKHOUSE_CLIENT --query="CREATE TABLE table_for_concurrent_alter (id UInt64, Data String) ENGINE = MergeTree() ORDER BY id SETTINGS index_granularity=4096;";
n=0
while [ "$n" -lt 50 ];
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do
n=$(( n + 1 ))
$CLICKHOUSE_CLIENT --query="INSERT INTO table_for_concurrent_alter VALUES(1, 'Hello')" > /dev/null 2> /dev/null &
$CLICKHOUSE_CLIENT --query="OPTIMIZE TABLE table_for_concurrent_alter FINAL" > /dev/null 2> /dev/null &
done &
q=0
while [ "$q" -lt 50 ];
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do
q=$(( q + 1 ))
counter=$(( 100 + q ))
$CLICKHOUSE_CLIENT --query="ALTER TABLE table_for_concurrent_alter MODIFY SETTING parts_to_throw_insert = $counter, parts_to_delay_insert = $counter, min_merge_bytes_to_use_direct_io = $counter" > /dev/null 2> /dev/null &
done &
sleep 4
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# if we have too many simultaneous queries
until $CLICKHOUSE_CLIENT --query "SELECT 1" 2>/dev/null 1>/dev/null
do
sleep 0.5
done
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$CLICKHOUSE_CLIENT --query "SELECT 1"
$CLICKHOUSE_CLIENT --query="DROP TABLE IF EXISTS table_for_concurrent_alter"