mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-13 09:52:38 +00:00
283ec54cbe
Since integration tests runs in parallel, this should fix: test_keeper_persistent_log_multinode/test.py::test_restart_multinode Another app is currently holding the xtables lock. Perhaps you want to use the -w option? And similar errors.
299 lines
11 KiB
Python
299 lines
11 KiB
Python
import os
|
|
import subprocess
|
|
import time
|
|
import logging
|
|
import docker
|
|
|
|
|
|
class PartitionManager:
|
|
"""Allows introducing failures in the network between docker containers.
|
|
|
|
Can act as a context manager:
|
|
|
|
with PartitionManager() as pm:
|
|
pm.partition_instances(instance1, instance2)
|
|
...
|
|
# At exit all partitions are removed automatically.
|
|
|
|
"""
|
|
|
|
def __init__(self):
|
|
self._iptables_rules = []
|
|
self._netem_delayed_instances = []
|
|
_NetworkManager.get()
|
|
|
|
def drop_instance_zk_connections(self, instance, action='DROP'):
|
|
self._check_instance(instance)
|
|
|
|
self._add_rule({'source': instance.ip_address, 'destination_port': 2181, 'action': action})
|
|
self._add_rule({'destination': instance.ip_address, 'source_port': 2181, 'action': action})
|
|
|
|
def restore_instance_zk_connections(self, instance, action='DROP'):
|
|
self._check_instance(instance)
|
|
|
|
self._delete_rule({'source': instance.ip_address, 'destination_port': 2181, 'action': action})
|
|
self._delete_rule({'destination': instance.ip_address, 'source_port': 2181, 'action': action})
|
|
|
|
def partition_instances(self, left, right, port=None, action='DROP'):
|
|
self._check_instance(left)
|
|
self._check_instance(right)
|
|
|
|
def create_rule(src, dst):
|
|
rule = {'source': src.ip_address, 'destination': dst.ip_address, 'action': action}
|
|
if port is not None:
|
|
rule['destination_port'] = port
|
|
return rule
|
|
|
|
self._add_rule(create_rule(left, right))
|
|
self._add_rule(create_rule(right, left))
|
|
|
|
def add_network_delay(self, instance, delay_ms):
|
|
self._add_tc_netem_delay(instance, delay_ms)
|
|
|
|
def heal_all(self):
|
|
while self._iptables_rules:
|
|
rule = self._iptables_rules.pop()
|
|
_NetworkManager.get().delete_iptables_rule(**rule)
|
|
|
|
while self._netem_delayed_instances:
|
|
instance = self._netem_delayed_instances.pop()
|
|
instance.exec_in_container(["bash", "-c", "tc qdisc del dev eth0 root netem"], user="root")
|
|
|
|
def pop_rules(self):
|
|
res = self._iptables_rules[:]
|
|
self.heal_all()
|
|
return res
|
|
|
|
def push_rules(self, rules):
|
|
for rule in rules:
|
|
self._add_rule(rule)
|
|
|
|
@staticmethod
|
|
def _check_instance(instance):
|
|
if instance.ip_address is None:
|
|
raise Exception('Instance + ' + instance.name + ' is not launched!')
|
|
|
|
def _add_rule(self, rule):
|
|
_NetworkManager.get().add_iptables_rule(**rule)
|
|
self._iptables_rules.append(rule)
|
|
|
|
def _delete_rule(self, rule):
|
|
_NetworkManager.get().delete_iptables_rule(**rule)
|
|
self._iptables_rules.remove(rule)
|
|
|
|
def _add_tc_netem_delay(self, instance, delay_ms):
|
|
instance.exec_in_container(["bash", "-c", "tc qdisc add dev eth0 root netem delay {}ms".format(delay_ms)], user="root")
|
|
self._netem_delayed_instances.append(instance)
|
|
|
|
def __enter__(self):
|
|
return self
|
|
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
|
self.heal_all()
|
|
|
|
def __del__(self):
|
|
self.heal_all()
|
|
|
|
|
|
class PartitionManagerDisabler:
|
|
def __init__(self, manager):
|
|
self.manager = manager
|
|
self.rules = self.manager.pop_rules()
|
|
|
|
def __enter__(self):
|
|
return self
|
|
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
|
self.manager.push_rules(self.rules)
|
|
|
|
|
|
class _NetworkManager:
|
|
"""Execute commands inside a container with access to network settings.
|
|
|
|
We need to call iptables to create partitions, but we want to avoid sudo.
|
|
The way to circumvent this restriction is to run iptables in a container with network=host.
|
|
The container is long-running and periodically renewed - this is an optimization to avoid the overhead
|
|
of container creation on each call.
|
|
Source of the idea: https://github.com/worstcase/blockade/blob/master/blockade/host.py
|
|
"""
|
|
|
|
# Singleton instance.
|
|
_instance = None
|
|
|
|
@classmethod
|
|
def get(cls, **kwargs):
|
|
if cls._instance is None:
|
|
cls._instance = cls(**kwargs)
|
|
return cls._instance
|
|
|
|
def add_iptables_rule(self, **kwargs):
|
|
cmd = ['iptables', '--wait', '-I', 'DOCKER-USER', '1']
|
|
cmd.extend(self._iptables_cmd_suffix(**kwargs))
|
|
self._exec_run(cmd, privileged=True)
|
|
|
|
def delete_iptables_rule(self, **kwargs):
|
|
cmd = ['iptables', '--wait', '-D', 'DOCKER-USER']
|
|
cmd.extend(self._iptables_cmd_suffix(**kwargs))
|
|
self._exec_run(cmd, privileged=True)
|
|
|
|
@staticmethod
|
|
def clean_all_user_iptables_rules():
|
|
for i in range(1000):
|
|
iptables_iter = i
|
|
# when rules will be empty, it will return error
|
|
res = subprocess.run("iptables --wait -D DOCKER-USER 1", shell=True)
|
|
|
|
if res.returncode != 0:
|
|
logging.info("All iptables rules cleared, " + str(iptables_iter) + " iterations, last error: " + str(res.stderr))
|
|
return
|
|
|
|
@staticmethod
|
|
def _iptables_cmd_suffix(
|
|
source=None, destination=None,
|
|
source_port=None, destination_port=None,
|
|
action=None, probability=None):
|
|
ret = []
|
|
if probability is not None:
|
|
ret.extend(['-m', 'statistic', '--mode', 'random', '--probability', str(probability)])
|
|
ret.extend(['-p', 'tcp'])
|
|
if source is not None:
|
|
ret.extend(['-s', source])
|
|
if destination is not None:
|
|
ret.extend(['-d', destination])
|
|
if source_port is not None:
|
|
ret.extend(['--sport', str(source_port)])
|
|
if destination_port is not None:
|
|
ret.extend(['--dport', str(destination_port)])
|
|
if action is not None:
|
|
ret.extend(['-j'] + action.split())
|
|
return ret
|
|
|
|
def __init__(
|
|
self,
|
|
container_expire_timeout=50, container_exit_timeout=60, docker_api_version=os.environ.get("DOCKER_API_VERSION")):
|
|
|
|
self.container_expire_timeout = container_expire_timeout
|
|
self.container_exit_timeout = container_exit_timeout
|
|
|
|
self._docker_client = docker.DockerClient(base_url='unix:///var/run/docker.sock', version=docker_api_version, timeout=600)
|
|
|
|
self._container = None
|
|
|
|
self._ensure_container()
|
|
|
|
def _ensure_container(self):
|
|
if self._container is None or self._container_expire_time <= time.time():
|
|
|
|
for i in range(5):
|
|
if self._container is not None:
|
|
try:
|
|
self._container.remove(force=True)
|
|
break
|
|
except docker.errors.NotFound:
|
|
break
|
|
except Exception as ex:
|
|
print("Error removing network blocade container, will try again", str(ex))
|
|
time.sleep(i)
|
|
|
|
image = subprocess.check_output("docker images -q yandex/clickhouse-integration-helper 2>/dev/null", shell=True)
|
|
if not image.strip():
|
|
print("No network image helper, will try download")
|
|
# for some reason docker api may hang if image doesn't exist, so we download it
|
|
# before running
|
|
for i in range(5):
|
|
try:
|
|
subprocess.check_call("docker pull yandex/clickhouse-integration-helper", shell=True) # STYLE_CHECK_ALLOW_SUBPROCESS_CHECK_CALL
|
|
break
|
|
except:
|
|
time.sleep(i)
|
|
else:
|
|
raise Exception("Cannot pull yandex/clickhouse-integration-helper image")
|
|
|
|
self._container = self._docker_client.containers.run('yandex/clickhouse-integration-helper',
|
|
auto_remove=True,
|
|
command=('sleep %s' % self.container_exit_timeout),
|
|
detach=True, network_mode='host')
|
|
container_id = self._container.id
|
|
self._container_expire_time = time.time() + self.container_expire_timeout
|
|
|
|
return self._container
|
|
|
|
def _exec_run_with_retry(self, cmd, retry_count, **kwargs):
|
|
for i in range(retry_count):
|
|
try:
|
|
self._exec_run(cmd, **kwargs)
|
|
except subprocess.CalledProcessError as e:
|
|
logging.error(f"_exec_run failed for {cmd}, {e}")
|
|
|
|
def _exec_run(self, cmd, **kwargs):
|
|
container = self._ensure_container()
|
|
|
|
handle = self._docker_client.api.exec_create(container.id, cmd, **kwargs)
|
|
output = self._docker_client.api.exec_start(handle).decode('utf8')
|
|
exit_code = self._docker_client.api.exec_inspect(handle)['ExitCode']
|
|
|
|
if exit_code != 0:
|
|
print(output)
|
|
raise subprocess.CalledProcessError(exit_code, cmd)
|
|
|
|
return output
|
|
|
|
# Approximately mesure network I/O speed for interface
|
|
class NetThroughput(object):
|
|
def __init__(self, node, interface="eth0"):
|
|
self.interface = interface
|
|
self.node = node
|
|
try:
|
|
check = subprocess.check_output(f'grep "^ *{self.interface}:" /proc/net/dev', shell=True)
|
|
if not check:
|
|
raise Exception(f"No such interface {self.interface} found in /proc/net/dev")
|
|
except:
|
|
logging.error("All available interfaces %s", subprocess.check_output("cat /proc/net/dev", shell=True))
|
|
raise Exception(f"No such interface {self.interface} found in /proc/net/dev")
|
|
|
|
self.current_in = self._get_in_bytes()
|
|
self.current_out = self._get_out_bytes()
|
|
self.measure_time = time.time()
|
|
|
|
def _get_in_bytes(self):
|
|
try:
|
|
result = self.node.exec_in_container(['bash', '-c', f'awk "/^ *{self.interface}:/"\' {{ if ($1 ~ /.*:[0-9][0-9]*/) {{ sub(/^.*:/, "") ; print $1 }} else {{ print $2 }} }}\' /proc/net/dev'])
|
|
except:
|
|
raise Exception(f"Cannot receive in bytes from /proc/net/dev for interface {self.interface}")
|
|
|
|
try:
|
|
return int(result)
|
|
except:
|
|
raise Exception(f"Got non-numeric in bytes '{result}' from /proc/net/dev for interface {self.interface}")
|
|
|
|
def _get_out_bytes(self):
|
|
try:
|
|
result = self.node.exec_in_container(['bash', '-c', f'awk "/^ *{self.interface}:/"\' {{ if ($1 ~ /.*:[0-9][0-9]*/) {{ print $9 }} else {{ print $10 }} }}\' /proc/net/dev'])
|
|
except:
|
|
raise Exception(f"Cannot receive out bytes from /proc/net/dev for interface {self.interface}")
|
|
|
|
try:
|
|
return int(result)
|
|
except:
|
|
raise Exception(f"Got non-numeric out bytes '{result}' from /proc/net/dev for interface {self.interface}")
|
|
|
|
def measure_speed(self, measure='bytes'):
|
|
new_in = self._get_in_bytes()
|
|
new_out = self._get_out_bytes()
|
|
current_time = time.time()
|
|
in_speed = (new_in - self.current_in) / (current_time - self.measure_time)
|
|
out_speed = (new_out - self.current_out) / (current_time - self.measure_time)
|
|
|
|
self.current_out = new_out
|
|
self.current_in = new_in
|
|
self.measure_time = current_time
|
|
|
|
if measure == 'bytes':
|
|
return in_speed, out_speed
|
|
elif measure == 'kilobytes':
|
|
return in_speed / 1024., out_speed / 1024.
|
|
elif measure == 'megabytes':
|
|
return in_speed / (1024 * 1024), out_speed / (1024 * 1024)
|
|
else:
|
|
raise Exception(f"Unknown measure {measure}")
|