mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 02:41:59 +00:00
8b08d56473
It is possible that the next after INSERT query will be executed only when INSERT finished, it is unlikely, but it happened few times on CI [1]: 2022.08.05 19:32:13.964046 [ 1565 ] {insert-qjnxxoaebk} <Debug> executeQuery: (from [::1]:57512) (comment: 02352_rwlock.sh) INSERT INTO test_7ybr6x_ordinary.data_02352 SELECT sleepEachRow(1) FROM numbers(20) GROUP BY number (stage: Complete) ... 2022.08.05 19:32:14.945738 [ 1594 ] {245b7446-58da-452b-9669-55dad643bc34} <Debug> executeQuery: (from [::1]:57516) (comment: 02352_rwlock.sh) select count() from system.processes where query_id = 'insert-qjnxxoaebk' (stage: Complete) ... 2022.08.05 19:32:33.997257 [ 1565 ] {insert-qjnxxoaebk} <Debug> TCPHandler: Processed in 20.056755494 sec. ... 2022.08.05 19:32:34.614789 [ 908 ] {3be7ade3-6461-4906-8767-7cc11f83a0b8} <Debug> executeQuery: (from [::1]:57522) (comment: 02352_rwlock.sh) select count() from system.processes where query_id = 'drop-zoyhjyewja' (stage: Complete) ... 2022.08.05 19:32:34.674039 [ 1175 ] {drop-zoyhjyewja} <Debug> executeQuery: (from [::1]:57528) (comment: 02352_rwlock.sh) DROP TABLE test_7ybr6x_ordinary.data_02352 SYNC (stage: Complete) ... [1]: https://s3.amazonaws.com/clickhouse-test-reports/39826/8e545958495937c6c6e61951601a6470119d0813/stateless_tests__debug__[1/3].html And to avoid flakiness in this case, add a retry loop and no-parallel tag. Refs: #38864 Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
88 lines
3.1 KiB
Bash
Executable File
88 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Tags: no-parallel
|
|
# Tag no-parallel -- to avoid running it in parallel, this will avoid possible issues due to high pressure
|
|
|
|
# Test that ensures that WRITE lock failure notifies READ.
|
|
# In other words to ensure that after WRITE lock failure (DROP),
|
|
# READ lock (SELECT) available instantly.
|
|
|
|
CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
# shellcheck source=../shell_config.sh
|
|
. "$CUR_DIR"/../shell_config.sh
|
|
|
|
function wait_query_by_id_started()
|
|
{
|
|
local query_id=$1 && shift
|
|
# wait for query to be started
|
|
while [ "$($CLICKHOUSE_CLIENT "$@" -q "select count() from system.processes where query_id = '$query_id'")" -ne 1 ]; do
|
|
if [ "$(
|
|
$CLICKHOUSE_CLIENT -nm -q "
|
|
system flush logs;
|
|
|
|
select count() from system.query_log
|
|
where
|
|
event_date >= yesterday() and
|
|
current_database = '$CLICKHOUSE_DATABASE' and
|
|
type = 'QueryFinish' and
|
|
query_id = '$query_id'
|
|
"
|
|
)" -eq 1 ]; then
|
|
return 1
|
|
else
|
|
sleep 0.1
|
|
fi
|
|
done
|
|
|
|
return 0
|
|
}
|
|
|
|
# to avoid removal via separate thread
|
|
$CLICKHOUSE_CLIENT -q "CREATE DATABASE ${CLICKHOUSE_DATABASE}_ordinary Engine=Ordinary" --allow_deprecated_database_ordinary=1
|
|
|
|
# It is possible that the subsequent after INSERT query will be processed
|
|
# only after INSERT finished, it is unlikely, but it happens few times in
|
|
# debug build on CI, so if this will happen, then DROP query will be
|
|
# finished instantly, and to avoid flakiness we will retry in this case
|
|
while :; do
|
|
$CLICKHOUSE_CLIENT -nm -q "
|
|
DROP TABLE IF EXISTS ${CLICKHOUSE_DATABASE}_ordinary.data_02352;
|
|
CREATE TABLE ${CLICKHOUSE_DATABASE}_ordinary.data_02352 (key Int) Engine=Null();
|
|
"
|
|
|
|
insert_query_id="insert-$(random_str 10)"
|
|
# 20 seconds sleep
|
|
$CLICKHOUSE_CLIENT --query_id "$insert_query_id" -q "INSERT INTO ${CLICKHOUSE_DATABASE}_ordinary.data_02352 SELECT sleepEachRow(1) FROM numbers(20) GROUP BY number" &
|
|
if ! wait_query_by_id_started "$insert_query_id"; then
|
|
wait
|
|
continue
|
|
fi
|
|
|
|
drop_query_id="drop-$(random_str 10)"
|
|
# 10 second wait
|
|
$CLICKHOUSE_CLIENT --query_id "$drop_query_id" -q "DROP TABLE ${CLICKHOUSE_DATABASE}_ordinary.data_02352 SYNC" --lock_acquire_timeout 10 > >(
|
|
grep -m1 -o 'WRITE locking attempt on ".*" has timed out'
|
|
) 2>&1 &
|
|
if ! wait_query_by_id_started "$drop_query_id"; then
|
|
wait
|
|
continue
|
|
fi
|
|
# Check INSERT query again, and retry if it does not exist.
|
|
if ! wait_query_by_id_started "$insert_query_id"; then
|
|
wait
|
|
continue
|
|
fi
|
|
|
|
# NOTE: we need to run SELECT after DROP and
|
|
# if the bug is there, then the query will wait 20 seconds (INSERT), instead of 10 (DROP) and will fail
|
|
#
|
|
# 11 seconds wait (DROP + 1 second lag)
|
|
$CLICKHOUSE_CLIENT -q "SELECT * FROM ${CLICKHOUSE_DATABASE}_ordinary.data_02352" --lock_acquire_timeout 11
|
|
|
|
# wait DROP and INSERT
|
|
wait
|
|
|
|
break
|
|
done | uniq
|
|
|
|
$CLICKHOUSE_CLIENT -q "DROP DATABASE ${CLICKHOUSE_DATABASE}_ordinary"
|