#!/usr/bin/env python """Powercycle test Tests robustness of mongod to survice multiple powercycle events. """ from __future__ import print_function import collections import copy import datetime import distutils.spawn import importlib import logging import optparse import os import random import re import shlex import shutil import stat import string import sys import tarfile import tempfile import time import urlparse import zipfile import psutil import pymongo import requests import yaml # The subprocess32 module is untested on Windows and thus isn't recommended for use, even when it's # installed. See https://github.com/google/python-subprocess32/blob/3.2.7/README.md#usage. if os.name == "posix" and sys.version_info[0] == 2: try: import subprocess32 as subprocess except ImportError: import warnings warnings.warn(("Falling back to using the subprocess module because subprocess32 isn't" " available. When using the subprocess module, a child process may" " trigger an invalid free(). See SERVER-22219 for more details."), RuntimeWarning) import subprocess else: import subprocess # Get relative imports to work when the package is not installed on the PYTHONPATH. if __name__ == "__main__" and __package__ is None: sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) # See https://docs.python.org/2/library/sys.html#sys.platform _IS_WINDOWS = sys.platform == "win32" or sys.platform == "cygwin" _IS_LINUX = sys.platform.startswith("linux") _IS_DARWIN = sys.platform == "darwin" def _try_import(module, name=None): """Attempts to import a module and add it as a global variable. If the import fails, then this function doesn't trigger an exception.""" try: module_name = module if not name else name globals()[module_name] = importlib.import_module(module) except ImportError: pass # These modules are used on the 'client' side. _try_import("buildscripts.aws_ec2", "aws_ec2") _try_import("buildscripts.remote_operations", "remote_operations") if _IS_WINDOWS: # These modules are used on the 'server' side. _try_import("ntsecuritycon") _try_import("pywintypes") _try_import("win32file") _try_import("win32security") _try_import("win32service") _try_import("win32serviceutil") __version__ = "0.1" LOGGER = logging.getLogger(__name__) """ Client & server side powercycle test script. This script can be run against any host which is reachable via ssh. Note - the remote hosts should be running bash shell (this script may fail otherwise). There are no assumptions on the server what is the current deployment of MongoDB. For Windows the assumption is that Cygwin is installed. The server needs these utilities: - python 2.7 or higher - sshd - rsync This script will either download a MongoDB tarball or use an existing setup. """ def get_extension(filename): """Returns the extension of a file.""" return os.path.splitext(filename)[-1] def abs_path(path): """Returns absolute path for 'path'. Raises an exception on failure.""" if _IS_WINDOWS: # Get the Windows absolute path. cmd = "cygpath -wa {}".format(path) ret, output = execute_cmd(cmd, use_file=True) if ret: raise Exception("Command \"{}\" failed with code {} and output message: {}".format( cmd, ret, output)) return output.rstrip() return os.path.abspath(os.path.normpath(path)) def symlink_dir(source_dir, dest_dir): """Symlinks the 'dest_dir' to 'source_dir'.""" if _IS_WINDOWS: win32file.CreateSymbolicLink(dest_dir, source_dir, win32file.SYMBOLIC_LINK_FLAG_DIRECTORY) else: os.symlink(source_dir, dest_dir) def get_bin_dir(root_dir): """Locates the 'bin' directory within 'root_dir' tree.""" for root, dirs, _ in os.walk(root_dir): if "bin" in dirs: return os.path.join(root, "bin") return None def executable_exists_in_path(executable): """Returns True if 'executable' is in the PATH.""" return distutils.spawn.find_executable(executable) is not None def execute_cmd(cmd, use_file=False): """Executes command and returns return_code and output from command""" orig_cmd = "" # Multi-commands need to be written to a temporary file to execute on Windows. # This is due to complications with invoking Bash in Windows. if use_file: orig_cmd = cmd with tempfile.NamedTemporaryFile(suffix=".sh", delete=False) as temp_file: temp_file.write(cmd) os_st = os.stat(temp_file.name) os.chmod(temp_file.name, os_st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH) # The temporary file name will have '\' on Windows and needs to be converted to '/'. cmd = "bash -c {}".format(temp_file.name.replace("\\", "/")) # If 'cmd' is specified as a string, convert it to a list of strings. if isinstance(cmd, str): cmd = shlex.split(cmd) if use_file: LOGGER.info("Executing '%s', tempfile contains: %s", cmd, orig_cmd) else: LOGGER.info("Executing '%s'", cmd) try: proc = subprocess.Popen( cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) output, _ = proc.communicate() error_code = proc.returncode if error_code: output = "Error executing cmd {}: {}".format(cmd, output) finally: if use_file: os.remove(temp_file.name) return error_code, output def parse_options(options): """ Parses options and returns a dict. Since there are options which can be specifed with a short('-') or long ('--') form, we preserve that in key map as {option_name: (value, form)}.""" options_map = collections.defaultdict(list) opts = shlex.split(options) for opt in opts: # Handle options which could start with "-" or "--". if opt.startswith("-"): opt_idx = 2 if opt[1] == "-" else 1 opt_form = opt[:opt_idx] eq_idx = opt.find("=") if eq_idx == -1: opt_name = opt[opt_idx:] options_map[opt_name] = (None, opt_form) else: opt_name = opt[opt_idx:eq_idx] options_map[opt_name] = (opt[eq_idx + 1:], opt_form) opt_name = None elif opt_name: options_map[opt_name] = (opt, opt_form) return options_map def download_file(url, file_name): """Returns True if download was successful. Raises error if download fails.""" LOGGER.info("Downloading %s to %s", url, file_name) with requests.Session() as session: adapter = requests.adapters.HTTPAdapter(max_retries=5) session.mount(url, adapter) response = session.get(url, stream=True) response.raise_for_status() with open(file_name, "wb") as file_handle: for block in response.iter_content(1024): file_handle.write(block) adapter.close() return True def install_tarball(tarball, root_dir): """ Unzip and install 'tarball' into 'root_dir'.""" LOGGER.info("Installing %s to %s", tarball, root_dir) output = "" extensions = [".msi", ".tgz", ".zip"] ext = get_extension(tarball) if ext == ".tgz": with tarfile.open(tarball, "r:gz") as tar_handle: tar_handle.extractall(path=root_dir) output = "Unzipped {} to {}: {}".format(tarball, root_dir, tar_handle.getnames()) ret = 0 elif ext == ".zip": with zipfile.ZipFile(tarball, "r") as zip_handle: zip_handle.extractall(root_dir) output = "Unzipped {} to {}: {}".format(tarball, root_dir, zip_handle.namelist()) ret = 0 elif ext == ".msi": if not _IS_WINDOWS: raise Exception("Unsupported platform for MSI install") tmp_dir = tempfile.mkdtemp(dir="c:\\") # Change the ownership to $USER: as ssh over Cygwin does not preserve privileges # (see https://cygwin.com/ml/cygwin/2004-09/msg00087.html). cmds = """ msiexec /a {tarball} /qn TARGETDIR="{tmp_dir}" /l msi.log ; if [ $? -ne 0 ]; then echo "msiexec failed to extract from {tarball}" ; echo See msi.log ; exit 1 ; fi ; mv "{tmp_dir}"/* "{root_dir}" ; chown -R $USER: "{root_dir}" ; chmod -R 777 "{root_dir}" ; winsysdir=c:/Windows/System32 ; pushd "{root_dir}/System64" ; for dll in * ; do if [ ! -f $winsysdir/$dll ]; then echo "File $winsysdir/$dll does not exist, copying from $(pwd)" ; cp $dll $winsysdir/ ; else echo "File $winsysdir/$dll already exists" ; fi ; done ; popd ; """.format(tarball=tarball, tmp_dir=tmp_dir, root_dir=root_dir) ret, output = execute_cmd(cmds, use_file=True) shutil.rmtree(tmp_dir) else: raise Exception("Unsupported file extension to unzip {}," " supported extensions are {}".format(tarball, extensions)) LOGGER.debug(output) if ret: raise Exception("Failed to install tarball {}, {}".format(tarball, output)) def chmod_x_binaries(bin_dir): """ Change all file permissions in 'bin_dir' to executable for everyone. """ files = os.listdir(bin_dir) LOGGER.debug("chmod +x %s %s", bin_dir, files) for dir_file in files: bin_file = os.path.join(bin_dir, dir_file) os_st = os.stat(bin_file) os.chmod(bin_file, os_st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH) def chmod_w_file(chmod_file): """ Change the permission for 'chmod_file' to '+w' for everyone. """ LOGGER.debug("chmod +w %s", chmod_file) if _IS_WINDOWS: # The os package cannot set the directory to '+w', so we use win32security. # See https://stackoverflow.com/ # questions/12168110/setting-folder-permissions-in-windows-using-python user, domain, sec_type = win32security.LookupAccountName("", "Everyone") file_sd = win32security.GetFileSecurity( chmod_file, win32security.DACL_SECURITY_INFORMATION) dacl = file_sd.GetSecurityDescriptorDacl() dacl.AddAccessAllowedAce( win32security.ACL_REVISION, ntsecuritycon.FILE_GENERIC_WRITE, user) file_sd.SetSecurityDescriptorDacl(1, dacl, 0) win32security.SetFileSecurity(chmod_file, win32security.DACL_SECURITY_INFORMATION, file_sd) else: os.chmod(chmod_file, os.stat(chmod_file) | stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH) def set_windows_bootstatuspolicy(): """ For Windows hosts that are physical, this prevents boot to prompt after failure.""" LOGGER.info("Setting bootstatuspolicy to ignoreallfailures & boot timeout to 5 seconds") cmds = """ echo 'Setting bootstatuspolicy to ignoreallfailures & boot timeout to 5 seconds' ; bcdedit /set {default} bootstatuspolicy ignoreallfailures ; bcdedit /set {current} bootstatuspolicy ignoreallfailures ; bcdedit /timeout 5""" ret, output = execute_cmd(cmds, use_file=True) return ret, output def install_mongod(bin_dir=None, tarball_url="latest", root_dir=None): """Sets up 'root_dir'/bin to contain MongoDB binaries. If 'bin_dir' is specified, then symlink it to 'root_dir'/bin. Otherwise, download 'tarball_url' and symlink it's bin to 'root_dir'/bin. If 'bin_dir' is specified, skip download and create symlink from 'bin_dir' to 'root_dir'/bin.""" LOGGER.debug("install_mongod: %s %s %s", bin_dir, tarball_url, root_dir) # Create 'root_dir', if it does not exist. root_bin_dir = os.path.join(root_dir, "bin") if not os.path.isdir(root_dir): LOGGER.info("install_mongod: creating %s", root_dir) os.makedirs(root_dir) # Symlink the 'bin_dir', if it's specified, to 'root_bin_dir' if bin_dir and os.path.isdir(bin_dir): symlink_dir(bin_dir, root_bin_dir) return if tarball_url == "latest": # TODO SERVER-31021: Support all platforms. if _IS_WINDOWS: # MSI default: # https://fastdl.mongodb.org/win32/mongodb-win32-x86_64-2008plus-ssl-latest-signed.msi tarball_url = ( "https://fastdl.mongodb.org/win32/mongodb-win32-x86_64-2008plus-ssl-latest.zip") elif _IS_LINUX: tarball_url = "https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-latest.tgz" tarball = os.path.split(urlparse.urlsplit(tarball_url).path)[-1] download_file(tarball_url, tarball) install_tarball(tarball, root_dir) chmod_x_binaries(get_bin_dir(root_dir)) # Symlink the bin dir from the tarball to 'root_bin_dir'. # Since get_bin_dir returns an abolute path, we need to remove 'root_dir' tarball_bin_dir = get_bin_dir(root_dir).replace("{}/".format(root_dir), "") LOGGER.info("Symlink %s to %s", tarball_bin_dir, root_bin_dir) symlink_dir(tarball_bin_dir, root_bin_dir) def print_uptime(): """Prints the last time the system was booted, and the uptime (in seconds). """ boot_time_epoch = psutil.boot_time() boot_time = datetime.datetime.fromtimestamp(boot_time_epoch).strftime('%Y-%m-%d %H:%M:%S.%f') uptime = int(time.time() - boot_time_epoch) LOGGER.info("System was last booted %s, up %d seconds", boot_time, uptime) def call_remote_operation(local_ops, remote_python, script_name, client_args, operation): """ Call the remote operation and returns tuple (ret, ouput). """ client_call = "{} {} {} {}".format(remote_python, script_name, client_args, operation) ret, output = local_ops.shell(client_call) return ret, output class ProcessControl(object): """ Process control class. Control processes either by name or a list of pids. If name is supplied, then all matching pids are controlled.""" def __init__(self, name=None, pids=None): """Provide either 'name' or 'pids' to control the process.""" if not name and not pids: raise Exception("Either 'process_name' or 'pids' must be specifed") self.name = name self.pids = [] if pids: self.pids = pids self.procs = [] def get_pids(self): """ Returns list of process ids for process 'self.name'.""" if not self.name: return self.pids self.pids = [] for proc in psutil.process_iter(): if proc.name() == self.name: self.pids.append(proc.pid) return self.pids def get_name(self): """ Returns process name or name of first running process from pids.""" if not self.name: for pid in self.get_pids(): proc = psutil.Process(pid) if psutil.pid_exists(pid): self.name = proc.name() break return self.name def get_procs(self): """ Returns a list of 'proc' for the associated pids.""" procs = [] for pid in self.get_pids(): procs.append(psutil.Process(pid)) return procs def is_running(self): """ Returns true if any process is running that either matches on name or pids.""" for pid in self.get_pids(): if psutil.pid_exists(pid): return True return False def terminate(self): """ Terminates all running processes that match the list of pids. """ if self.is_running(): for proc in self.get_procs(): try: proc.terminate() except psutil.NoSuchProcess: LOGGER.info("Could not terminate pid %d, process no longer exists", proc.pid) class WindowsService(object): """ Windows service control class.""" def __init__(self, name, bin_path, bin_options, start_type=None): self.name = name self.bin_name = os.path.basename(bin_path) self.bin_path = bin_path self.bin_options = bin_options if start_type is not None: self.start_type = start_type else: self.start_type = win32service.SERVICE_DEMAND_START self.pids = [] self._states = { win32service.SERVICE_CONTINUE_PENDING: "continue pending", win32service.SERVICE_PAUSE_PENDING: "pause pending", win32service.SERVICE_PAUSED: "paused", win32service.SERVICE_RUNNING: "running", win32service.SERVICE_START_PENDING: "start pending", win32service.SERVICE_STOPPED: "stopped", win32service.SERVICE_STOP_PENDING: "stop pending", } def create(self): """ Create service, if not installed. Returns (code, output) tuple. """ if self.status() in self._states.values(): return 1, "Service '{}' already installed, status: {}".format(self.name, self.status()) try: win32serviceutil.InstallService( pythonClassString="Service.{}".format(self.name), serviceName=self.name, displayName=self.name, startType=self.start_type, exeName=self.bin_path, exeArgs=self.bin_options) ret = 0 output = "Service '{}' created".format(self.name) except pywintypes.error as err: ret = err.winerror output = "{}: {}".format(err[1], err[2]) return ret, output def update(self): """ Update installed service. Returns (code, output) tuple. """ if self.status() not in self._states.values(): return 1, "Service update '{}' status: {}".format(self.name, self.status()) try: win32serviceutil.ChangeServiceConfig( pythonClassString="Service.{}".format(self.name), serviceName=self.name, displayName=self.name, startType=self.start_type, exeName=self.bin_path, exeArgs=self.bin_options) ret = 0 output = "Service '{}' updated".format(self.name) except pywintypes.error as err: ret = err.winerror output = "{}: {}".format(err[1], err[2]) return ret, output def delete(self): """ Delete service. Returns (code, output) tuple. """ if self.status() not in self._states.values(): return 1, "Service delete '{}' status: {}".format(self.name, self.status()) try: win32serviceutil.RemoveService(serviceName=self.name) ret = 0 output = "Service '{}' deleted".format(self.name) except pywintypes.error as err: ret = err.winerror output = "{}: {}".format(err[1], err[2]) return ret, output def start(self): """ Start service. Returns (code, output) tuple. """ if self.status() not in self._states.values(): return 1, "Service start '{}' status: {}".format(self.name, self.status()) try: win32serviceutil.StartService(serviceName=self.name) ret = 0 output = "Service '{}' started".format(self.name) except pywintypes.error as err: ret = err.winerror output = "{}: {}".format(err[1], err[2]) proc = ProcessControl(name=self.bin_name) self.pids = proc.get_pids() return ret, output def stop(self): """ Stop service. Returns (code, output) tuple. """ self.pids = [] if self.status() not in self._states.values(): return 1, "Service '{}' status: {}".format(self.name, self.status()) try: win32serviceutil.StopService(serviceName=self.name) ret = 0 output = "Service '{}' stopped".format(self.name) except pywintypes.error as err: ret = err.winerror output = "{}: {}".format(err[1], err[2]) return ret, output def status(self): """ Returns state of the service as a string. """ try: # QueryServiceStatus returns a tuple: # (scvType, svcState, svcControls, err, svcErr, svcCP, svcWH) # See https://msdn.microsoft.com/en-us/library/windows/desktop/ms685996(v=vs.85).aspx scv_type, svc_state, svc_controls, err, svc_err, svc_cp, svc_wh = ( win32serviceutil.QueryServiceStatus(serviceName=self.name)) if svc_state in self._states: return self._states[svc_state] else: return "unknown" except pywintypes.error: return "not installed" def get_pids(self): """ Return list of pids for service. """ return self.pids class PosixService(object): """ Service control on POSIX systems. Simulates service control for background processes which fork themselves, i.e., mongod with '--fork'.""" def __init__(self, name, bin_path, bin_options): self.name = name self.bin_path = bin_path self.bin_name = os.path.basename(bin_path) self.bin_options = bin_options self.pids = [] def create(self): """ Simulates create service. Returns (code, output) tuple. """ return 0, None def update(self): """ Simulates update service. Returns (code, output) tuple. """ return 0, None def delete(self): """ Simulates delete service. Returns (code, output) tuple. """ return 0, None def start(self): """ Start process. Returns (code, output) tuple. """ cmd = "{} {}".format(self.bin_path, self.bin_options) ret, output = execute_cmd(cmd) if not ret: proc = ProcessControl(name=self.bin_name) self.pids = proc.get_pids() return ret, output def stop(self): """ Stop process. Returns (code, output) tuple. """ proc = ProcessControl(name=self.bin_name) proc.terminate() self.pids = [] return 0, None def status(self): """ Returns status of service. """ if self.get_pids(): return "running" return "stopped" def get_pids(self): """ Return list of pids for process. """ return self.pids class MongodControl(object): """ Control mongod process. """ def __init__(self, bin_dir, db_path, log_path, port, options=None): extension = ".exe" if _IS_WINDOWS else "" self.process_name = "mongod{}".format(extension) self.bin_dir = bin_dir if self.bin_dir: self.bin_path = os.path.join(self.bin_dir, self.process_name) if not os.path.isfile(self.bin_path): LOGGER.error("File %s does not exist.", self.bin_path) else: self.bin_path = None self.options_map = parse_options(options) self.db_path = db_path self.set_mongod_option("dbpath", db_path) self.log_path = log_path self.set_mongod_option("logpath", log_path) self.set_mongod_option("logappend") self.port = port self.set_mongod_option("port", port) self.set_mongod_option("bind_ip", "0.0.0.0") if _IS_WINDOWS: self.set_mongod_option("service") self._service = WindowsService else: self.set_mongod_option("fork") self._service = PosixService # After mongod has been installed, self.bin_path is defined. if self.bin_path: self.service = self._service("mongod-powertest", self.bin_path, self.mongod_options()) def set_mongod_option(self, option, option_value=None, option_form="--"): """ Sets mongod command line option. """ self.options_map[option] = (option_value, option_form) def get_mongod_option(self, option): """ Returns tuple of (value, form). """ return self.options_map[option] def get_mongod_service(self): """ Returns the service object used to control mongod. """ return self.service def mongod_options(self): """ Returns string of mongod options, which can be used when invoking mongod. """ opt_string = "" for opt_name in self.options_map: opt_val, opt_form = self.options_map[opt_name] opt_string += " {}{}".format(opt_form, opt_name) if opt_val: opt_string += " {}".format(opt_val) return opt_string def install(self, root_dir, tarball_url): """ Returns tuple (ret, ouput). """ # Install mongod, if 'root_dir' does not exist. if os.path.isdir(root_dir): LOGGER.warning("Root dir %s already exists", root_dir) else: install_mongod(bin_dir=self.bin_dir, tarball_url=tarball_url, root_dir=root_dir) self.bin_dir = get_bin_dir(root_dir) if not self.bin_dir: ret, output = execute_cmd("ls -lR '{}'".format(root_dir), use_file=True) LOGGER.debug(output) return 1, "No bin dir can be found under {}".format(root_dir) self.bin_path = os.path.join(self.bin_dir, self.process_name) # We need to instantiate the Service when installing, since the bin_path # is only known after install_mongod runs. self.service = self._service("mongod-powertest", self.bin_path, self.mongod_options()) ret, output = self.service.create() return ret, output def uninstall(self): """ Returns tuple (ret, ouput). """ return self.service.delete() def cleanup(self, root_dir): """ Returns tuple (ret, ouput). """ shutil.rmtree(root_dir, ignore_errors=True) return 0, None def start(self): """ Returns tuple (ret, ouput). """ return self.service.start() def update(self): """ Returns tuple (ret, ouput). """ return self.service.update() def stop(self): """ Returns tuple (ret, ouput). """ return self.service.stop() def get_pids(self): """ Return list of pids for process. """ return self.service.get_pids() class LocalToRemoteOperations(object): """ Local operations handler class for sending commands to the remote host. Returns (return code, output). """ def __init__(self, user_host, ssh_connection_options=None, ssh_options=None, shell_binary="/bin/bash", use_shell=False): self.remote_op = remote_operations.RemoteOperations( user_host=user_host, ssh_connection_options=ssh_connection_options, ssh_options=ssh_options, retries=10, retry_sleep=10, debug=True, shell_binary=shell_binary, use_shell=use_shell) def shell(self, cmds, remote_dir=None): """ Returns tuple (ret, output) from performing remote shell operation. """ return self.remote_op.shell(cmds, remote_dir) def copy_from(self, files, remote_dir=None): """ Returns tuple (ret, output) from performing remote copy_to operation. """ return self.remote_op.copy_from(files, remote_dir) def copy_to(self, files, remote_dir=None): """ Returns tuple (ret, output) from performing remote copy_from operation. """ return self.remote_op.copy_to(files, remote_dir) def remote_handler(options, operations): """ Remote operations handler executes all remote operations on the remote host. These operations are invoked on the remote host's copy of this script. Only one operation can be performed at a time. """ # Set 'root_dir' to absolute path. root_dir = abs_path(options.root_dir) if not operations: raise ValueError("No remote operation specified.") print_uptime() LOGGER.info("Operations to perform %s", operations) host_port = "localhost:{}".format(options.port) if options.use_replica_set and options.repl_set: options.mongod_options = "{} --replSet {}".format( options.mongod_options, options.repl_set) # For MongodControl, the file references should be fully specified. if options.mongodb_bin_dir: bin_dir = abs_path(options.mongodb_bin_dir) else: bin_dir = get_bin_dir(root_dir) db_path = abs_path(options.db_path) log_path = abs_path(options.log_path) mongod = MongodControl( bin_dir=bin_dir, db_path=db_path, log_path=log_path, port=options.port, options=options.mongod_options) # Perform the sequence of operations specified. If any operation fails # then return immediately. for operation in operations: # This is the internal "crash" mechanism, which is executed on the remote host. if operation == "crash_server": ret, output = internal_crash(options.remote_sudo) elif operation == "install_mongod": ret, output = mongod.install(root_dir, options.tarball_url) LOGGER.info(output) # Create mongod's dbpath, if it does not exist. if not os.path.isdir(db_path): os.makedirs(db_path) # Create mongod's logpath directory, if it does not exist. log_dir = os.path.dirname(log_path) if not os.path.isdir(log_dir): os.makedirs(log_dir) # Windows special handling. if _IS_WINDOWS: # The os package cannot set the directory to '+w' # See https://docs.python.org/2/library/os.html#os.chmod chmod_w_file(db_path) chmod_w_file(log_dir) # Disable boot prompt after system crash. ret, output = set_windows_bootstatuspolicy() LOGGER.info(output) elif operation == "start_mongod": # Always update the service before starting, as options might have changed. ret, output = mongod.update() LOGGER.info(output) ret, output = mongod.start() LOGGER.info(output) if ret: LOGGER.error("Failed to start mongod on port %d: %s", options.port, output) return ret LOGGER.info("Started mongod running on port %d pid %s", options.port, mongod.get_pids()) mongo = pymongo.MongoClient(host="localhost", port=options.port) LOGGER.info("Server buildinfo: %s", mongo.admin.command("buildinfo")) LOGGER.info("Server serverStatus: %s", mongo.admin.command("serverStatus")) if options.use_replica_set and options.repl_set: ret = mongo_reconfig_replication(mongo, host_port, options.repl_set) ret = 0 if not ret else 1 elif operation == "stop_mongod": ret, output = mongod.stop() LOGGER.info(output) ret = wait_for_mongod_shutdown(options.db_path) elif operation == "shutdown_mongod": mongo = pymongo.MongoClient(host="localhost", port=options.port) try: mongo.admin.command("shutdown", force=True) except pymongo.errors.AutoReconnect: pass ret = wait_for_mongod_shutdown(options.db_path) elif operation == "rsync_data": ret, output = rsync(options.db_path, options.rsync_dest) LOGGER.info(output) elif operation == "seed_docs": mongo = pymongo.MongoClient(host="localhost", port=options.port) ret = mongo_seed_docs( mongo, options.db_name, options.collection_name, options.seed_doc_num) elif operation == "validate_collections": mongo = pymongo.MongoClient(host="localhost", port=options.port) ret = mongo_validate_collections(mongo) elif operation == "insert_canary": mongo = pymongo.MongoClient(host="localhost", port=options.port) ret = mongo_insert_canary( mongo, options.db_name, options.collection_name, options.canary_doc) elif operation == "validate_canary": mongo = pymongo.MongoClient(host="localhost", port=options.port) ret = mongo_validate_canary( mongo, options.db_name, options.collection_name, options.canary_doc) else: LOGGER.error("Unsupported remote option specified '%s'", operation) ret = 1 if ret: return ret return 0 def rsync(src_dir, dest_dir): """ Rsync 'src_dir' to 'dest_dir'. """ # Note rsync on Windows requires a Unix-style directory. LOGGER.info("Rsync'ing %s to %s", src_dir, dest_dir) if not executable_exists_in_path("rsync"): return 1, "No rsync exists on the host, not rsync'ing" cmds = "rsync -va --delete --quiet {} {}".format(src_dir, dest_dir) ret, output = execute_cmd(cmds) return ret, output def internal_crash(use_sudo=False): """ Internally crash the host this excutes on. """ # Windows does not have a way to immediately crash itself. It's # better to use an external mechanism instead. if _IS_WINDOWS: # Sleep after issuing shutdown, to prevent the 'client' side script # continuing, as shutdown is no immediate. cmds = """ shutdown /r /f /t 0 ; sleep 10""" ret, output = execute_cmd(cmds, use_file=True) return ret, output else: # These operations simulate a console boot and require root privileges, see: # - http://www.linuxjournal.com/content/rebooting-magic-way # - https://www.mjmwired.net/kernel/Documentation/sysrq.txt # These file operations could be performed natively, # however since they require root (or sudo), we prefer to do them # in a subprocess call to isolate them and not require the invocation # of this script to be with sudo. # Code to perform natively: # with open("/proc/sys/kernel/sysrq", "w") as f: # f.write("1\n") # with open("/proc/sysrq-trigger", "w") as f: # f.write("b\n") sudo = "/usr/bin/sudo" if use_sudo else "" cmds = """ echo "Server crashing now" | {sudo} wall ; echo 1 | {sudo} tee /proc/sys/kernel/sysrq ; echo b | {sudo} tee /proc/sysrq-trigger""".format(sudo=sudo) ret, output = execute_cmd(cmds, use_file=True) LOGGER.debug(output) return 1, "Crash did not occur" def crash_server(options, crash_canary, local_ops, script_name, client_args): """ Crashes server and optionally writes canary doc before crash. """ crash_wait_time = options.crash_wait_time + random.randint(0, options.crash_wait_time_jitter) LOGGER.info("Crashing server in %d seconds", crash_wait_time) time.sleep(crash_wait_time) crash_func = local_ops.shell if options.crash_method == "mpower": # Provide time for power to dissipate by sleeping 10 seconds before turning it back on. crash_args = [""" echo 0 > /dev/{crash_options} ; sleep 10 ; echo 1 > /dev/{crash_options}""".format(crash_options=options.crash_options)] local_ops = LocalToRemoteOperations( user_host=options.ssh_crash_user_host, ssh_connection_options=options.ssh_crash_options, shell_binary="/bin/sh") crash_func = local_ops.shell elif options.crash_method == "internal": if options.canary == "remote": # The crash canary function executes remotely, only if the # crash_method is 'internal'. canary = "--docForCanary \"{}\"".format(crash_canary["args"][3]) canary_cmd = "insert_canary" else: canary = "" canary_cmd = "" crash_args = ["{} {} --remoteOperation {} {} {} crash_server".format( options.remote_python, script_name, client_args, canary, canary_cmd)] elif options.crash_method == "aws_ec2": ec2 = aws_ec2.AwsEc2() crash_func = ec2.control_instance crash_args = ["force-stop", options.crash_options] else: LOGGER.error("Unsupported crash method '%s' provided", options.crash_method) return False # Invoke the crash canary function, right before crashing the server. if crash_canary and options.canary == "local": crash_canary["function"](*crash_canary["args"]) _, output = crash_func(*crash_args) LOGGER.info(output) def wait_for_mongod_shutdown(data_dir, timeout=120): """ Waits for for mongod to shutdown. Returns 0 if shutdown occurs within 'timeout', else 1. """ lock_file = os.path.join(data_dir, "mongod.lock") LOGGER.info("Waiting for mongod to release lockfile %s", lock_file) start = time.time() while os.path.exists(lock_file) and os.stat(lock_file).st_size: time.sleep(3) if time.time() - start >= timeout: LOGGER.error("The mongod lockfile %s has not been released, exiting", lock_file) return 1 LOGGER.info("The mongod lockfile %s has been released", lock_file) return 0 def get_mongo_client_args(options): """ Returns keyword arg dict used in PyMongo client. """ mongo_args = {} # Set the writeConcern mongo_args = options.write_concern # Set the readConcernLevel if options.read_concern_level: mongo_args["readConcernLevel"] = options.read_concern_level return mongo_args def mongo_shell(mongo_path, work_dir, host_port, mongo_cmds, retries=5, retry_sleep=5): """Starts mongo_path from work_dir, connecting to host_port and executes mongo_cmds.""" cmds = """ cd {}; echo '{}' | {} {}""".format(work_dir, mongo_cmds, mongo_path, host_port) attempt_num = 0 while True: ret, output = execute_cmd(cmds, use_file=True) if not ret: break attempt_num += 1 if attempt_num > retries: break time.sleep(retry_sleep) return ret, output def mongod_wait_for_primary(mongo, timeout=60, sleep_interval=3): """ Return True if the mongod primary is available in replica set, within the specified timeout.""" start = time.time() while not mongo.admin.command("isMaster")["ismaster"]: time.sleep(sleep_interval) if time.time() - start >= timeout: return False return True def mongo_reconfig_replication(mongo, host_port, repl_set): """ Reconfigure the mongod replica set. Return 0 if successful.""" # TODO: Rework reconfig logic as follows: # 1. Start up mongod in standalone # 2. Delete the config doc # 3. Stop mongod # 4. Start mongod # When reconfiguring the replica set, due to a switch in ports # it can only be done using force=True, as the node will not come up as Primary. # The side affect of using force=True are large jumps in the config # version, which after many reconfigs may exceed the 'int' value. database = pymongo.database.Database(mongo, "local") system_replset = database.get_collection("system.replset") # Check if replica set has already been initialized if not system_replset or not system_replset.find_one(): rs_config = {"_id": repl_set, "members": [{"_id": 0, "host": host_port}]} ret = mongo.admin.command("replSetInitiate", rs_config) else: ret = mongo.admin.command("replSetGetConfig") if ret["ok"] != 1: return 1 rs_config = ret["config"] # We only reconfig if there is a change to 'host'. if rs_config["members"][0]["host"] != host_port: # With force=True, version is ignored. # rs_config["version"] = rs_config["version"] + 1 rs_config["members"][0]["host"] = host_port ret = mongo.admin.command("replSetReconfig", rs_config, force=True) primary_available = mongod_wait_for_primary(mongo) LOGGER.debug("isMaster: %s", mongo.admin.command("isMaster")) LOGGER.debug("replSetGetStatus: %s", mongo.admin.command("replSetGetStatus")) return 0 if ret["ok"] == 1 and primary_available else 1 def mongo_seed_docs(mongo, db_name, coll_name, num_docs): """ Seed a collection with random document values. """ def rand_string(max_length=1024): """Returns random string of random length. """ return ''.join(random.choice(string.letters) for _ in range(random.randint(1, max_length))) LOGGER.info("Seeding DB '%s' collection '%s' with %d documents, %d already exist", db_name, coll_name, num_docs, mongo[db_name][coll_name].count()) random.seed() base_num = 100000 bulk_num = min(num_docs, 10000) bulk_loops = num_docs / bulk_num for _ in xrange(bulk_loops): num_coll_docs = mongo[db_name][coll_name].count() if num_coll_docs >= num_docs: break mongo[db_name][coll_name].insert_many( [{"x": random.randint(0, base_num), "doc": rand_string(1024)} for _ in xrange(bulk_num)]) LOGGER.info("After seeding there are %d documents in the collection", mongo[db_name][coll_name].count()) return 0 def mongo_validate_collections(mongo): """ Validates the mongo collections. Returns 0 if all are valid. """ LOGGER.info("Validating all collections") invalid_colls = [] ebusy_colls = [] for db_name in mongo.database_names(): for coll_name in mongo[db_name].collection_names(): res = mongo[db_name].command({"validate": coll_name, "full": True}) LOGGER.info("Validating %s %s: %s", db_name, coll_name, res) ebusy = "EBUSY" in res["errors"] or "EBUSY" in res["warnings"] if not res["valid"]: invalid_colls.append(coll_name) elif ebusy: ebusy_colls.append(coll_name) if ebusy_colls: LOGGER.warning("EBUSY collections: %s", ebusy_colls) if invalid_colls: LOGGER.error("Invalid collections: %s", ebusy_colls) return 0 if not invalid_colls else 1 def mongo_validate_canary(mongo, db_name, coll_name, doc): """ Validates a canary document. Returns 0 if the document exists. """ LOGGER.info("Validating canary document %s", doc) return 0 if not doc or mongo[db_name][coll_name].find_one(doc) else 1 def mongo_insert_canary(mongo, db_name, coll_name, doc): """ Inserts a canary document with 'j' True. Returns 0 if successful. """ LOGGER.info("Inserting canary document %s", doc) coll = mongo[db_name][coll_name].with_options( write_concern=pymongo.write_concern.WriteConcern(j=True)) res = coll.insert_one(doc) return 0 if res.inserted_id else 1 def main(): """ Main program. """ parser = optparse.OptionParser(usage=""" %prog [options] MongoDB Powercycle test Examples: Server is running as single node replica set connected to mFi mPower, outlet1: python powertest.py --sshUserHost 10.4.1.54 --rootDir pt-mmap --replSet power --crashMethod mpower --crashOptions output1 --sshCrashUserHost admin@10.4.100.2 --sshCrashOptions "-oKexAlgorithms=+diffie-hellman-group1-sha1 -i /Users/jonathan/.ssh/mFi.pem" --mongodOptions "--storageEngine mmapv1" Linux server running in AWS, testing nojournal: python powertest.py --sshUserHost ec2-user@52.4.173.196 --sshConnection "-i $HOME/.ssh/JAkey.pem" --rootDir pt-nojournal --mongodOptions "--nojournal" """) test_options = optparse.OptionGroup(parser, "Test Options") crash_options = optparse.OptionGroup(parser, "Crash Options") mongodb_options = optparse.OptionGroup(parser, "MongoDB Options") mongod_options = optparse.OptionGroup(parser, "mongod Options") program_options = optparse.OptionGroup(parser, "Program Options") # Test options test_options.add_option("--sshUserHost", dest="ssh_user_host", help="Server ssh user/host, i.e., user@host (REQUIRED)", default=None) default_ssh_connection_options = ( "-o ServerAliveCountMax=10" " -o ServerAliveInterval=6" " -o StrictHostKeyChecking=no" " -o ConnectTimeout=30" " -o ConnectionAttempts=25") test_options.add_option("--sshConnection", dest="ssh_connection_options", help="Server ssh additional connection options, i.e., '-i ident.pem'" " which are added to '{}'".format(default_ssh_connection_options), default=None) test_options.add_option("--mongoPath", dest="mongo_path", help="Path to mongo (shell) executable, if unspecifed, mongo client" " is launched from $PATH", default="mongo") test_options.add_option("--mongoRepoRootDir", dest="mongo_repo_root_dir", help="Root directory of mongoDB repository, defaults to current" " directory.", default=None) test_options.add_option("--testLoops", dest="num_loops", help="Number of powercycle loops to run [default: %default]", type="int", default=10) test_options.add_option("--testTime", dest="test_time", help="Time to run test (in seconds), overrides --testLoops", type="int", default=0) test_options.add_option("--rsync", dest="rsync_data", help="Rsync data directory between mongod stop and start", action="store_true", default=False) validate_locations = ["local", "remote"] test_options.add_option("--validate", dest="validate_collections", help="Run validate on all collections after mongod restart after" " a powercycle. Choose from {} to specify where the" " validate runs.".format(validate_locations), choices=validate_locations, default=None) canary_locations = ["local", "remote"] test_options.add_option("--canary", dest="canary", help="Generate and validate canary document between powercycle" " events. Choose from {} to specify where the canary is" " generated from. If the 'crashMethod' is not 'internal" " then this option must be 'local'.".format(canary_locations), choices=canary_locations, default=None) test_options.add_option("--docForCanary", dest="canary_doc", help=optparse.SUPPRESS_HELP, default="") test_options.add_option("--seedDocNum", dest="seed_doc_num", help="Number of documents to seed the default collection [default:" " %default]", type="int", default=0) test_options.add_option("--dbName", dest="db_name", help=optparse.SUPPRESS_HELP, default="power") test_options.add_option("--collectionName", dest="collection_name", help=optparse.SUPPRESS_HELP, default="cycle") test_options.add_option("--writeConcern", dest="write_concern", help="mongo (shell) CRUD client writeConcern, i.e.," " '{\"w\": \"majority\"}' [default: '%default']", default="{}") test_options.add_option("--readConcernLevel", dest="read_concern_level", help="mongo (shell) CRUD client readConcernLevel, i.e.," "'majority'", default=None) # Crash options crash_methods = ["aws_ec2", "internal", "mpower"] crash_options.add_option("--crashMethod", dest="crash_method", choices=crash_methods, help="Crash methods: {} [default: '%default']".format(crash_methods), default="internal") crash_options.add_option("--crashWaitTime", dest="crash_wait_time", help="Time, in seconds, to wait before issuing crash [default:" " %default]", type="int", default=30) crash_options.add_option("--jitterForCrashWaitTime", dest="crash_wait_time_jitter", help="The maximum time, in seconds, to be added to --crashWaitTime," " as a uniform distributed random value," " [default: %default]", type="int", default=10) crash_options.add_option("--sshCrashUserHost", dest="ssh_crash_user_host", help="The crash host's user@host for performing the crash.", default=None) crash_options.add_option("--sshCrashOptions", dest="ssh_crash_options", help="The crash host's ssh connection options, i.e., '-i ident.pem'", default=None) crash_options.add_option("--crashOptions", dest="crash_options", help="Secondary argument for the following --crashMethod:" " 'aws_ec2': specify EC2 instance_id." " 'mpower': specify output to turn off/on, i.e.," " 'output1'.", default=None) # MongoDB options mongodb_options.add_option("--downloadUrl", dest="tarball_url", help="URL of tarball to test, if unspecifed latest tarball will be" " used", default="latest") mongodb_options.add_option("--rootDir", dest="root_dir", help="Root directory, on remote host, to install tarball and data" " directory [default: 'mongodb-powertest-']", default=None) mongodb_options.add_option("--mongodbBinDir", dest="mongodb_bin_dir", help="Directory, on remote host, containing mongoDB binaries," " overrides bin from tarball in --downloadUrl", default=None) mongodb_options.add_option("--dbPath", dest="db_path", help="Data directory to use, on remote host, if unspecified" " it will be '/data/db'", default=None) mongodb_options.add_option("--logPath", dest="log_path", help="Log path, on remote host, if unspecified" " it will be '/log/mongod.log'", default=None) # mongod options mongod_options.add_option("--replSet", dest="repl_set", help="Name of mongod single node replica set, if unpsecified mongod" " defaults to standalone node", default=None) # The current port used to start and connect to mongod. Not meant to be specified # by the user. mongod_options.add_option("--mongodPort", dest="port", help=optparse.SUPPRESS_HELP, type="int", default=None) mongod_options.add_option("--useReplicaSet", dest="use_replica_set", help=optparse.SUPPRESS_HELP, action="store_true", default=False) # The ports used on the 'server' side when in standard or secret mode. mongod_options.add_option("--mongodUsablePorts", dest="usable_ports", nargs=2, help="List of usable ports to be used by mongod for" " standard and secret modes, [default: %default]", type="int", default=[27017, 37017]) mongod_options.add_option("--mongodOptions", dest="mongod_options", help="Additional mongod options", default="") # Program options program_options.add_option("--remotePython", dest="remote_python", help="The python intepreter to use on the remote host" " [default: '%default']." " To be able to use a python virtual environment," " which has already been provisioned on the remote" " host, specify something similar to this:" " 'source venv/bin/activate; python'", default="python") # Program options program_options.add_option("--remoteSudo", dest="remote_sudo", help="Use sudo on the remote host for priveleged operations." " [default: %default]." " For non-Windows systems, in order to perform privileged" " operations on the remote host, specify this, if the" " remote user is not able to perform root operations.", action="store_true", default=False) log_levels = ["debug", "info", "warning", "error"] program_options.add_option("--logLevel", dest="log_level", choices=log_levels, help="The log level. Accepted values are: {}." " [default: '%default'].".format(log_levels), default="info") program_options.add_option("--logFile", dest="log_file", help="The destination file for the log output. Defaults to stdout.", default=None) program_options.add_option("--version", dest="version", help="Display this program's version", action="store_true", default=False) # Remote options, include commands and options sent from client to server under test. # These are 'internal' options, not meant to be directly specifed. # More than one remote operation can be provided and they are specified in the program args. program_options.add_option("--remoteOperation", dest="remote_operation", help=optparse.SUPPRESS_HELP, action="store_true", default=False) program_options.add_option("--backupPathBefore", dest="backup_path_before", help="Path where the db_path is backed up before crash recovery," " defaults to '/data-beforerecovery/db'", default=None) program_options.add_option("--backupPathAfter", dest="backup_path_after", help="Path where the db_path is backed up after crash recovery," " defaults to '/data-afterrecovery/db'", default=None) program_options.add_option("--rsyncDest", dest="rsync_dest", help=optparse.SUPPRESS_HELP, default=None) parser.add_option_group(test_options) parser.add_option_group(crash_options) parser.add_option_group(mongodb_options) parser.add_option_group(mongod_options) parser.add_option_group(program_options) options, args = parser.parse_args() logging.basicConfig(format="%(asctime)s %(levelname)s %(message)s", level=options.log_level.upper(), filename=options.log_file) logging.Formatter.converter = time.gmtime LOGGER.info("powertest.py invocation: %s", " ".join(sys.argv)) script_name = os.path.basename(__file__) # Print script name and version. if options.version: print("{}:{}".format(script_name, __version__)) sys.exit(0) # Initialize the mongod options if not options.root_dir: options.root_dir = "mongodb-powertest-{}".format(int(time.time())) if not options.db_path: options.db_path = os.path.join(options.root_dir, "data", "db") if not options.log_path: options.log_path = os.path.join(options.root_dir, "log", "mongod.log") mongod_options_map = parse_options(options.mongod_options) # Error out earlier if these options are not properly specified options.write_concern = yaml.safe_load(options.write_concern) options.canary_doc = yaml.safe_load(options.canary_doc) # Invoke remote_handler if remote_operation is specified. # The remote commands are program args. if options.remote_operation: ret = remote_handler(options, args) # Exit here since the local operations are performed after this. sys.exit(ret) # Required option for non-remote commands. if options.ssh_user_host is None and not options.remote_operation: parser.error("Missing required argument --sshUserHost") secret_port = options.usable_ports[1] standard_port = options.usable_ports[0] seed_docs = "seed_docs" if options.seed_doc_num else "" if options.rsync_data: rsync_cmd = "rsync_data" else: rsync_cmd = "" rsync_opt = "" # Setup the mongo_repo_root mongo_repo_root_dir = "." if not options.mongo_repo_root_dir else options.mongo_repo_root_dir if not os.path.isdir(mongo_repo_root_dir): LOGGER.error("mongoRepoRoot %s does not exist", mongo_repo_root_dir) sys.exit(1) # Setup the validate_collections option if options.validate_collections == "remote": validate_collections_cmd = "validate_collections" else: validate_collections_cmd = "" # Setup the validate_canary option if options.canary and "nojournal" in mongod_options_map: LOGGER.error("Cannot create and validate canary documents if the mongod option" " '--nojournal' is used.") sys.exit(1) if options.canary == "remote" and options.crash_method != "internal": parser.error("The option --canary can only be specified as 'remote' if --crashMethod" " is 'internal'") orig_canary_doc = canary_doc = "" validate_canary_cmd = "" # The remote mongod host comes from the ssh_user_host, # which may be specified as user@host. mongod_host = options.ssh_user_host.rsplit()[-1].rsplit("@")[-1] ssh_connection_options = "{} {}".format( default_ssh_connection_options, options.ssh_connection_options if options.ssh_connection_options else "") # For remote operations requiring sudo, force pseudo-tty allocation, # see https://stackoverflow.com/questions/10310299/proper-way-to-sudo-over-ssh. # Note - the ssh option RequestTTY was added in OpenSSH 5.9, so we use '-tt'. ssh_options = "-tt" if options.remote_sudo else None # Instantiate the local handler object. local_ops = LocalToRemoteOperations( user_host=options.ssh_user_host, ssh_connection_options=ssh_connection_options, ssh_options=ssh_options, use_shell=True) # Bootstrap the remote host with this script. ret, output = local_ops.copy_to(__file__) if ret: LOGGER.error("Cannot access remote system %s", output) sys.exit(1) # Pass client_args to the remote script invocation. client_args = "" for option in parser._get_all_options(): if option.dest: option_value = getattr(options, option.dest) if option_value != option.default: # The boolean options do not require the option_value. if isinstance(option_value, bool): option_value = "" # Quote the non-default option values from the invocation of this script, # if they have spaces, or quotes, such that they can be safely passed to the # remote host's invocation of this script. elif isinstance(option_value, str) and re.search("\"|'| ", option_value): option_value = "'{}'".format(option_value) # The tuple options need to be changed to a string. elif isinstance(option_value, tuple): option_value = " ".join(map(str, option_value)) client_args = "{} {} {}".format(client_args, option.get_opt_string(), option_value) LOGGER.info("%s %s", __file__, client_args) # Remote install of MongoDB. ret, output = call_remote_operation( local_ops, options.remote_python, script_name, client_args, "--remoteOperation install_mongod") LOGGER.info("****install_mongod: %d %s****", ret, output) if ret: sys.exit(ret) # test_time option overrides num_loops. if options.test_time: options.num_loops = 999999 else: options.test_time = 999999 loop_num = 0 start_time = int(time.time()) test_time = 0 # ======== Main loop for running the powercycle test========: # 1. Rsync the database (optional, post-crash, pre-recovery) # 2. Start mongod on the secret port and wait for it to recover # 3 Validate collections (optional) # 4. Validate canary (optional) # 5. Stop mongod # 6. Rsync the database (optional, post-recovery) # 7. Start mongod on the standard port # 8. Start mongo (shell) & FSM clients # 9. Generate canary document (optional) # 10. Crash the server # 11. Exit loop if one of these occurs: # a. Loop time or loop number exceeded # b. Any step fails # ========= while True: loop_num += 1 LOGGER.info("****Starting test loop %d test time %d seconds****", loop_num, test_time) if options.canary and loop_num > 1: canary_opt = "--docForCanary \"{}\"".format(canary_doc) validate_canary_cmd = "validate_canary" if options.canary else "" else: canary_opt = "" # Since rsync requires Posix style paths, we do not use os.path.join to # construct the rsync destination directory. if rsync_cmd: if options.backup_path_before: rsync_dest = options.backup_path_before else: rsync_dest = "{}/data-afterrecovery".format(options.root_dir) rsync_opt = " --rsyncDest {}".format(rsync_dest) # Optionally, rsync the pre-recovery database. # Start monogd on the secret port. # Optionally validate collections, validate the canary and seed the collection. remote_operation = ("--remoteOperation" " {rsync_opt}" " {canary_opt}" " --mongodPort {port}" " {rsync_cmd}" " start_mongod" " {validate_collections_cmd}" " {validate_canary_cmd}" " {seed_docs}").format( rsync_opt=rsync_opt, canary_opt=canary_opt, port=secret_port, rsync_cmd=rsync_cmd, validate_collections_cmd=validate_collections_cmd, validate_canary_cmd=validate_canary_cmd, seed_docs=seed_docs if loop_num == 1 else "") ret, output = call_remote_operation( local_ops, options.remote_python, script_name, client_args, remote_operation) rsync_text = "rsync_data beforerecovery & " if options.rsync_data else "" LOGGER.info("****%sstart mongod: %d %s****", rsync_text, ret, output) if ret: sys.exit(ret) # Optionally, run local validation of collections. if options.validate_collections == "local": cmds = """ TestData = {}; TestData.skipValidationOnNamespaceNotFound = true; load("jstests/hooks/run_validate_collections.js");""" host_port = "{}:{}".format(mongod_host, secret_port) ret, output = mongo_shell(options.mongo_path, mongo_repo_root_dir, host_port, cmds) LOGGER.info("Collection validation: %d %s", ret, output) if ret: sys.exit(ret) # Shutdown mongod on secret port. remote_op = ("--remoteOperation" " --mongodPort {}" " shutdown_mongod").format(secret_port) ret, output = call_remote_operation( local_ops, options.remote_python, script_name, client_args, remote_op) LOGGER.info("****shutdown_mongod: %d %s****", ret, output) if ret: sys.exit(ret) # Since rsync requires Posix style paths, we do not use os.path.join to # construct the rsync destination directory. if rsync_cmd: if options.backup_path_after: rsync_dest = options.backup_path_after else: rsync_dest = "{}/data-afterrecovery".format(options.root_dir) rsync_opt = " --rsyncDest {}".format(rsync_dest) # Optionally, rsync the post-recovery database. # Start monogd on the standard port. # Replica sets are optionally used in this mode. use_replica_set = "--useReplicaSet" if options.repl_set else "" remote_op = ("--remoteOperation" " {}" " --mongodPort {}" " {}" " {}" " start_mongod").format( rsync_opt, standard_port, use_replica_set, rsync_cmd) ret, output = call_remote_operation( local_ops, options.remote_python, script_name, client_args, remote_op) rsync_text = "rsync_data afterrecovery & " if options.rsync_data else "" LOGGER.info("****%s start mongod: %d %s****", rsync_text, ret, output) if ret: sys.exit(ret) # TODO SERVER-30802: Add CRUD & FSM clients # Crash the server. A pre-crash canary document is optionally written to the DB. crash_canary = {} if options.canary: canary_doc = {"x": time.time()} orig_canary_doc = copy.deepcopy(canary_doc) mongo_opts = get_mongo_client_args(options) mongo = pymongo.MongoClient( host=mongod_host, port=standard_port, **mongo_opts) crash_canary["function"] = mongo_insert_canary crash_canary["args"] = [ mongo, options.db_name, options.collection_name, canary_doc] crash_server(options, crash_canary, local_ops, script_name, client_args) canary_doc = copy.deepcopy(orig_canary_doc) test_time = int(time.time()) - start_time LOGGER.info("****Completed test loop %d test time %d seconds****", loop_num, test_time) if loop_num == options.num_loops or test_time >= options.test_time: break sys.exit(0) if __name__ == "__main__": main()