mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 19:02:04 +00:00
455 lines
18 KiB
Python
Executable File
455 lines
18 KiB
Python
Executable File
import os
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import time
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import inspect
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import threading
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import tempfile
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from testflows.core import *
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from testflows.asserts import error
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from testflows.connect import Shell
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from testflows.uexpect import ExpectTimeoutError
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class QueryRuntimeException(Exception):
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"""Exception during query execution on the server.
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"""
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pass
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class Node(object):
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"""Generic cluster node.
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"""
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config_d_dir = "/etc/clickhouse-server/config.d/"
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def __init__(self, cluster, name):
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self.cluster = cluster
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self.name = name
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def repr(self):
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return f"Node(name='{self.name}')"
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def restart(self, timeout=300, retries=5, safe=True):
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"""Restart node.
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"""
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with self.cluster.lock:
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for key in list(self.cluster._bash.keys()):
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if key.endswith(f"-{self.name}"):
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shell = self.cluster._bash.pop(key)
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shell.__exit__(None, None, None)
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} restart {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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def start(self, timeout=300, retries=5):
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"""Start node.
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"""
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} start {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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def stop(self, timeout=300, retries=5, safe=True):
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"""Stop node.
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"""
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with self.cluster.lock:
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for key in list(self.cluster._bash.keys()):
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if key.endswith(f"-{self.name}"):
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shell = self.cluster._bash.pop(key)
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shell.__exit__(None, None, None)
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} stop {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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def command(self, *args, **kwargs):
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return self.cluster.command(self.name, *args, **kwargs)
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def cmd(self, cmd, message=None, exitcode=None, steps=True, shell_command="bash --noediting", no_checks=False,
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raise_on_exception=False, step=By, *args, **kwargs):
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"""Execute and check command.
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:param cmd: command
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:param message: expected message that should be in the output, default: None
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:param exitcode: expected exitcode, default: None
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"""
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command = f"{cmd}"
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with Step("executing command", description=command, format_description=False) if steps else NullStep():
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try:
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r = self.cluster.bash(self.name, command=shell_command)(command, *args, **kwargs)
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except ExpectTimeoutError:
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self.cluster.close_bash(self.name)
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raise
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if no_checks:
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return r
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if exitcode is not None:
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with Then(f"exitcode should be {exitcode}") if steps else NullStep():
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assert r.exitcode == exitcode, error(r.output)
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if message is not None:
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with Then(f"output should contain message", description=message) if steps else NullStep():
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assert message in r.output, error(r.output)
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if message is None or "Exception:" not in message:
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with Then("check if output has exception") if steps else NullStep():
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if "Exception:" in r.output:
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if raise_on_exception:
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raise QueryRuntimeException(r.output)
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assert False, error(r.output)
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return r
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class ClickHouseNode(Node):
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"""Node with ClickHouse server.
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"""
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def wait_healthy(self, timeout=300):
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with By(f"waiting until container {self.name} is healthy"):
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start_time = time.time()
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while True:
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if self.query("select 1", no_checks=1, timeout=300, steps=False).exitcode == 0:
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break
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if time.time() - start_time < timeout:
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time.sleep(2)
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continue
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assert False, "container is not healthy"
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def stop(self, timeout=300, safe=True, retries=5):
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"""Stop node.
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"""
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if safe:
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self.query("SYSTEM STOP MOVES")
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self.query("SYSTEM STOP MERGES")
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self.query("SYSTEM FLUSH LOGS")
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with By("waiting for 5 sec for moves and merges to stop"):
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time.sleep(5)
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with And("forcing to sync everything to disk"):
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self.command("sync", timeout=30)
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with self.cluster.lock:
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for key in list(self.cluster._bash.keys()):
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if key.endswith(f"-{self.name}"):
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shell = self.cluster._bash.pop(key)
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shell.__exit__(None, None, None)
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} stop {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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def start(self, timeout=300, wait_healthy=True, retries=5):
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"""Start node.
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"""
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} start {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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if wait_healthy:
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self.wait_healthy(timeout)
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def restart(self, timeout=300, safe=True, wait_healthy=True, retries=5):
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"""Restart node.
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"""
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if safe:
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self.query("SYSTEM STOP MOVES")
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self.query("SYSTEM STOP MERGES")
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self.query("SYSTEM FLUSH LOGS")
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with By("waiting for 5 sec for moves and merges to stop"):
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time.sleep(5)
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with And("forcing to sync everything to disk"):
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self.command("sync", timeout=30)
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with self.cluster.lock:
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for key in list(self.cluster._bash.keys()):
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if key.endswith(f"-{self.name}"):
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shell = self.cluster._bash.pop(key)
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shell.__exit__(None, None, None)
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for retry in range(retries):
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r = self.cluster.command(None, f'{self.cluster.docker_compose} restart {self.name}', timeout=timeout)
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if r.exitcode == 0:
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break
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if wait_healthy:
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self.wait_healthy(timeout)
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def query(self, sql, message=None, exitcode=None, steps=True, no_checks=False,
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raise_on_exception=False, step=By, settings=None, *args, **kwargs):
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"""Execute and check query.
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:param sql: sql query
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:param message: expected message that should be in the output, default: None
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:param exitcode: expected exitcode, default: None
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"""
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settings = list(settings or [])
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if hasattr(current().context, "default_query_settings"):
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settings += current().context.default_query_settings
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if len(sql) > 1024:
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with tempfile.NamedTemporaryFile("w", encoding="utf-8") as query:
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query.write(sql)
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query.flush()
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command = f"cat \"{query.name}\" | {self.cluster.docker_compose} exec -T {self.name} clickhouse client -n"
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for setting in settings:
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name, value = setting
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command += f" --{name} \"{value}\""
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description = f"""
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echo -e \"{sql[:100]}...\" > {query.name}
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{command}
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"""
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with Step("executing command", description=description, format_description=False) if steps else NullStep():
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try:
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r = self.cluster.bash(None)(command, *args, **kwargs)
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except ExpectTimeoutError:
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self.cluster.close_bash(None)
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else:
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command = f"echo -e \"{sql}\" | clickhouse client -n"
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for setting in settings:
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name, value = setting
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command += f" --{name} \"{value}\""
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with Step("executing command", description=command, format_description=False) if steps else NullStep():
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try:
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r = self.cluster.bash(self.name)(command, *args, **kwargs)
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except ExpectTimeoutError:
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self.cluster.close_bash(self.name)
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raise
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if no_checks:
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return r
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if exitcode is not None:
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with Then(f"exitcode should be {exitcode}") if steps else NullStep():
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assert r.exitcode == exitcode, error(r.output)
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if message is not None:
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with Then(f"output should contain message", description=message) if steps else NullStep():
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assert message in r.output, error(r.output)
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if message is None or "Exception:" not in message:
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with Then("check if output has exception") if steps else NullStep():
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if "Exception:" in r.output:
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if raise_on_exception:
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raise QueryRuntimeException(r.output)
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assert False, error(r.output)
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return r
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class Cluster(object):
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"""Simple object around docker-compose cluster.
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"""
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def __init__(self, local=False,
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clickhouse_binary_path=None, configs_dir=None,
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nodes=None,
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docker_compose="docker-compose", docker_compose_project_dir=None,
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docker_compose_file="docker-compose.yml"):
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self.terminating = False
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self._bash = {}
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self.clickhouse_binary_path = clickhouse_binary_path
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self.configs_dir = configs_dir
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self.local = local
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self.nodes = nodes or {}
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self.docker_compose = docker_compose
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frame = inspect.currentframe().f_back
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caller_dir = os.path.dirname(os.path.abspath(frame.f_globals["__file__"]))
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# auto set configs directory
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if self.configs_dir is None:
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caller_configs_dir = caller_dir
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if os.path.exists(caller_configs_dir):
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self.configs_dir = caller_configs_dir
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if not os.path.exists(self.configs_dir):
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raise TypeError(f"configs directory '{self.configs_dir}' does not exist")
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# auto set docker-compose project directory
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if docker_compose_project_dir is None:
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caller_project_dir = os.path.join(caller_dir, "docker-compose")
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if os.path.exists(caller_project_dir):
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docker_compose_project_dir = caller_project_dir
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docker_compose_file_path = os.path.join(docker_compose_project_dir or "", docker_compose_file)
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if not os.path.exists(docker_compose_file_path):
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raise TypeError("docker compose file '{docker_compose_file_path}' does not exist")
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self.docker_compose += f" --no-ansi --project-directory \"{docker_compose_project_dir}\" --file \"{docker_compose_file_path}\""
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self.lock = threading.Lock()
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def shell(self, node, timeout=300):
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"""Returns unique shell terminal to be used.
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"""
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if node is None:
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return Shell()
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shell = Shell(command=[
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"/bin/bash", "--noediting", "-c", f"{self.docker_compose} exec {node} bash --noediting"
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], name=node)
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shell.timeout = timeout
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return shell
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def bash(self, node, timeout=300, command="bash --noediting"):
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"""Returns thread-local bash terminal
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to a specific node.
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:param node: name of the service
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"""
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test = current()
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if self.terminating:
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if test and (test.cflags & MANDATORY):
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pass
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else:
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raise InterruptedError("terminating")
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current_thread = threading.current_thread()
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id = f"{current_thread.name}-{node}"
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with self.lock:
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if self._bash.get(id) is None:
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if node is None:
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self._bash[id] = Shell().__enter__()
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else:
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self._bash[id] = Shell(command=[
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"/bin/bash", "--noediting", "-c", f"{self.docker_compose} exec {node} {command}"
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], name=node).__enter__()
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self._bash[id].timeout = timeout
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# clean up any stale open shells for threads that have exited
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active_thread_names = {thread.name for thread in threading.enumerate()}
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for bash_id in list(self._bash.keys()):
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thread_name, node_name = bash_id.rsplit("-", 1)
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if thread_name not in active_thread_names:
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self._bash[bash_id].__exit__(None, None, None)
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del self._bash[bash_id]
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return self._bash[id]
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def close_bash(self, node):
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current_thread = threading.current_thread()
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id = f"{current_thread.name}-{node}"
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with self.lock:
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if self._bash.get(id) is None:
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return
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self._bash[id].__exit__(None, None, None)
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del self._bash[id]
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def __enter__(self):
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with Given("docker-compose cluster"):
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self.up()
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return self
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def __exit__(self, type, value, traceback):
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try:
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with Finally("I clean up"):
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self.down()
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finally:
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with self.lock:
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for shell in self._bash.values():
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shell.__exit__(type, value, traceback)
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def node(self, name):
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"""Get object with node bound methods.
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:param name: name of service name
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"""
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if name.startswith("clickhouse"):
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return ClickHouseNode(self, name)
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return Node(self, name)
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def down(self, timeout=300):
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"""Bring cluster down by executing docker-compose down."""
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self.terminating = True
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try:
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bash = self.bash(None)
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with self.lock:
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# remove and close all not None node terminals
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for id in list(self._bash.keys()):
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shell = self._bash.pop(id)
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if shell is not bash:
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shell.__exit__(None, None, None)
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else:
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self._bash[id] = shell
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finally:
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return self.command(None, f"{self.docker_compose} down --timeout 60", bash=bash, timeout=timeout)
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def up(self, timeout=30*60):
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if self.local:
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with Given("I am running in local mode"):
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with Then("check --clickhouse-binary-path is specified"):
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assert self.clickhouse_binary_path, "when running in local mode then --clickhouse-binary-path must be specified"
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with And("path should exist"):
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assert os.path.exists(self.clickhouse_binary_path)
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with And("I set all the necessary environment variables"):
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os.environ["COMPOSE_HTTP_TIMEOUT"] = "300"
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os.environ["CLICKHOUSE_TESTS_SERVER_BIN_PATH"] = self.clickhouse_binary_path
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os.environ["CLICKHOUSE_TESTS_ODBC_BRIDGE_BIN_PATH"] = os.path.join(
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os.path.dirname(self.clickhouse_binary_path), "clickhouse-odbc-bridge")
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os.environ["CLICKHOUSE_TESTS_DIR"] = self.configs_dir
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with And("I list environment variables to show their values"):
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self.command(None, "env | grep CLICKHOUSE")
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with Given("docker-compose"):
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max_attempts = 5
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for attempt in range(max_attempts):
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with When(f"attempt {attempt}/{max_attempts}"):
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with By("pulling images for all the services"):
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cmd = self.command(None, f"{self.docker_compose} pull 2>&1 | tee", exitcode=None, timeout=timeout)
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if cmd.exitcode != 0:
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continue
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with And("executing docker-compose down just in case it is up"):
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cmd = self.command(None, f"{self.docker_compose} down --remove-orphans 2>&1 | tee", exitcode=None, timeout=timeout)
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if cmd.exitcode != 0:
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continue
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with And("executing docker-compose up"):
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cmd = self.command(None, f"{self.docker_compose} up -d 2>&1 | tee", timeout=timeout)
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with Then("check there are no unhealthy containers"):
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if "is unhealthy" in cmd.output:
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self.command(None, f"{self.docker_compose} ps | tee")
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self.command(None, f"{self.docker_compose} logs | tee")
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if cmd.exitcode == 0:
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break
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if cmd.exitcode != 0:
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fail("could not bring up docker-compose cluster")
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with Then("wait all nodes report healhy"):
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for name in self.nodes["clickhouse"]:
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self.node(name).wait_healthy()
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def command(self, node, command, message=None, exitcode=None, steps=True, bash=None, *args, **kwargs):
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"""Execute and check command.
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:param node: name of the service
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:param command: command
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:param message: expected message that should be in the output, default: None
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:param exitcode: expected exitcode, default: None
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:param steps: don't break command into steps, default: True
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"""
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with By("executing command", description=command, format_description=False) if steps else NullStep():
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if bash is None:
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bash = self.bash(node)
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try:
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r = bash(command, *args, **kwargs)
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except ExpectTimeoutError:
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self.close_bash(node)
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raise
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if exitcode is not None:
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with Then(f"exitcode should be {exitcode}", format_name=False) if steps else NullStep():
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assert r.exitcode == exitcode, error(r.output)
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if message is not None:
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with Then(f"output should contain message", description=message, format_description=False) if steps else NullStep():
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assert message in r.output, error(r.output)
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return r
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