From fd85a862f039c659d9d699c6ea42aa463658147b Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Sat, 31 Aug 2019 02:19:05 +0300
Subject: [PATCH] Added a test just in case

---
 .../01003_kill_query_race_condition.reference |  0
 .../01003_kill_query_race_condition.sh        | 50 +++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 dbms/tests/queries/0_stateless/01003_kill_query_race_condition.reference
 create mode 100755 dbms/tests/queries/0_stateless/01003_kill_query_race_condition.sh

diff --git a/dbms/tests/queries/0_stateless/01003_kill_query_race_condition.reference b/dbms/tests/queries/0_stateless/01003_kill_query_race_condition.reference
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/dbms/tests/queries/0_stateless/01003_kill_query_race_condition.sh b/dbms/tests/queries/0_stateless/01003_kill_query_race_condition.sh
new file mode 100755
index 00000000000..9eeafaa8442
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/01003_kill_query_race_condition.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+set -e
+
+function thread1()
+{
+    while true; do 
+        $CLICKHOUSE_CLIENT --query_id=hello --query "SELECT count() FROM system.numbers";
+    done
+}
+
+function thread2()
+{
+    while true; do
+        $CLICKHOUSE_CLIENT --query "KILL QUERY WHERE query_id = 'hello'" --format Null;
+        sleep 0.$RANDOM
+    done
+}
+
+function thread3()
+{
+    while true; do
+        $CLICKHOUSE_CLIENT --query "SHOW PROCESSLIST" --format Null;
+        $CLICKHOUSE_CLIENT --query "SELECT * FROM system.processes" --format Null;
+    done
+}
+
+# https://stackoverflow.com/questions/9954794/execute-a-shell-function-with-timeout
+export -f thread1;
+export -f thread2;
+export -f thread3;
+
+TIMEOUT=10
+
+timeout $TIMEOUT bash -c thread1 2> /dev/null &
+timeout $TIMEOUT bash -c thread1 2> /dev/null &
+timeout $TIMEOUT bash -c thread1 2> /dev/null &
+timeout $TIMEOUT bash -c thread1 2> /dev/null &
+
+timeout $TIMEOUT bash -c thread2 2> /dev/null &
+
+timeout $TIMEOUT bash -c thread3 2> /dev/null &
+timeout $TIMEOUT bash -c thread3 2> /dev/null &
+timeout $TIMEOUT bash -c thread3 2> /dev/null &
+timeout $TIMEOUT bash -c thread3 2> /dev/null &
+
+wait