ClickHouse/tests/queries/0_stateless/01085_max_distributed_connections.sh
Azat Khuzhin d28963d695 tests: do not leave any queries after finish
This should fix issues like [1], where because one query from the
previous test was left the next fails, in this particular report the
problem was that 01281_group_by_limit_memory_tracking fails due to the
query from 01301_aggregate_state_exception_memory_leak was running in
background.

  [1]: https://s3.amazonaws.com/clickhouse-test-reports/34919/311f884d3d4215f7f82c2dd66ea51d071d313241/stateless_tests__thread__actions__[2/3].html

v2: wait for queries in 01249_flush_interactive
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
2022-03-09 17:29:33 +03:00

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#!/usr/bin/env bash
# Tags: distributed
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=../shell_config.sh
. "$CURDIR"/../shell_config.sh
i=0 retries=300
# Sometimes five seconds are not enough due to system overload.
# But if it can run in less than five seconds at least sometimes - it is enough for the test.
while [[ $i -lt $retries ]]; do
opts=(
--max_distributed_connections 20
--max_threads 1
--query "SELECT sleepEachRow(1) FROM remote('127.{2..21}', system.one)"
--format Null
)
# 10 less then 20 seconds (20 streams), but long enough to cover possible load peaks
# "$@" left to pass manual options (like --experimental_use_processors 0) during manual testing
clickhouse_client_timeout 10s ${CLICKHOUSE_CLIENT} "${opts[@]}" "$@" && break
((++i))
done