mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 18:12:02 +00:00
80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
import pytest
|
|
import logging
|
|
import time
|
|
|
|
from helpers.cluster import ClickHouseCluster, run_and_check
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
|
|
node1 = cluster.add_instance(
|
|
"node1", main_configs=["config/text_log.xml"], mem_limit="5g"
|
|
)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def get_latest_mem_limit():
|
|
for _ in range(10):
|
|
try:
|
|
mem_limit = float(
|
|
node1.query(
|
|
"""
|
|
select extract(message, '\\d+\\.\\d+') from system.text_log
|
|
where message like '%Setting max_server_memory_usage was set to%' and
|
|
message not like '%like%' order by event_time desc limit 1
|
|
"""
|
|
).strip()
|
|
)
|
|
return mem_limit
|
|
except Exception:
|
|
time.sleep(1)
|
|
raise Exception("Cannot get memory limit")
|
|
|
|
|
|
def test_observe_memory_limit(started_cluster):
|
|
original_max_mem = get_latest_mem_limit()
|
|
logging.debug(f"get original memory limit {original_max_mem}")
|
|
run_and_check(["docker", "update", "--memory=10g", node1.docker_id])
|
|
for _ in range(30):
|
|
time.sleep(10)
|
|
new_max_mem = get_latest_mem_limit()
|
|
logging.debug(f"get new memory limit {new_max_mem}")
|
|
if new_max_mem > original_max_mem:
|
|
return
|
|
raise Exception("the memory limit does not increase as expected")
|
|
|
|
|
|
def test_memory_usage_doesnt_include_page_cache_size(started_cluster):
|
|
try:
|
|
# populate page cache with 4GB of data; it might be killed by OOM killer but it is fine
|
|
node1.exec_in_container(
|
|
["dd", "if=/dev/zero", "of=outputfile", "bs=1M", "count=4K"]
|
|
)
|
|
except Exception:
|
|
pass
|
|
|
|
observer_refresh_period = int(
|
|
node1.query(
|
|
"select value from system.server_settings where name = 'cgroups_memory_usage_observer_wait_time'"
|
|
).strip()
|
|
)
|
|
time.sleep(observer_refresh_period + 1)
|
|
|
|
max_mem_usage_from_cgroup = node1.query(
|
|
"""
|
|
SELECT max(toUInt64(replaceRegexpAll(message, 'Read current memory usage (\\d+) bytes.*', '\\1'))) AS max_mem
|
|
FROM system.text_log
|
|
WHERE logger_name = 'CgroupsMemoryUsageObserver' AND message LIKE 'Read current memory usage%bytes%'
|
|
"""
|
|
).strip()
|
|
assert int(max_mem_usage_from_cgroup) < 2 * 2 ** 30
|