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"""
The main job wrapper for the server side.
This is the core infrastructure. Derived from the client side job.py
Copyright Martin J. Bligh, Andy Whitcroft 2007
"""
import getpass, os, sys, re, stat, tempfile, time, select, subprocess, platform
import traceback, shutil, warnings, fcntl, pickle, logging, itertools, errno
from autotest_lib.client.bin import sysinfo
from autotest_lib.client.common_lib import base_job
from autotest_lib.client.common_lib import error, log, utils, packages
from autotest_lib.client.common_lib import logging_manager
from autotest_lib.server import test, subcommand, profilers
from autotest_lib.server.hosts import abstract_ssh
from autotest_lib.tko import db as tko_db, status_lib, utils as tko_utils
def _control_segment_path(name):
"""Get the pathname of the named control segment file."""
server_dir = os.path.dirname(os.path.abspath(__file__))
return os.path.join(server_dir, "control_segments", name)
CLIENT_CONTROL_FILENAME = 'control'
SERVER_CONTROL_FILENAME = 'control.srv'
MACHINES_FILENAME = '.machines'
CLIENT_WRAPPER_CONTROL_FILE = _control_segment_path('client_wrapper')
CRASHDUMPS_CONTROL_FILE = _control_segment_path('crashdumps')
CRASHINFO_CONTROL_FILE = _control_segment_path('crashinfo')
INSTALL_CONTROL_FILE = _control_segment_path('install')
CLEANUP_CONTROL_FILE = _control_segment_path('cleanup')
VERIFY_CONTROL_FILE = _control_segment_path('verify')
REPAIR_CONTROL_FILE = _control_segment_path('repair')
# by default provide a stub that generates no site data
def _get_site_job_data_dummy(job):
return {}
# load up site-specific code for generating site-specific job data
get_site_job_data = utils.import_site_function(__file__,
"autotest_lib.server.site_server_job", "get_site_job_data",
_get_site_job_data_dummy)
class status_indenter(base_job.status_indenter):
"""Provide a simple integer-backed status indenter."""
def __init__(self):
self._indent = 0
@property
def indent(self):
return self._indent
def increment(self):
self._indent += 1
def decrement(self):
self._indent -= 1
def get_context(self):
"""Returns a context object for use by job.get_record_context."""
class context(object):
def __init__(self, indenter, indent):
self._indenter = indenter
self._indent = indent
def restore(self):
self._indenter._indent = self._indent
return context(self, self._indent)
class server_job_record_hook(object):
"""The job.record hook for server job. Used to inject WARN messages from
the console or vlm whenever new logs are written, and to echo any logs
to INFO level logging. Implemented as a class so that it can use state to
block recursive calls, so that the hook can call job.record itself to
log WARN messages.
Depends on job._read_warnings and job._logger.
"""
def __init__(self, job):
self._job = job
self._being_called = False
def __call__(self, entry):
"""A wrapper around the 'real' record hook, the _hook method, which
prevents recursion. This isn't making any effort to be threadsafe,
the intent is to outright block infinite recursion via a
job.record->_hook->job.record->_hook->job.record... chain."""
if self._being_called:
return
self._being_called = True
try:
self._hook(self._job, entry)
finally:
self._being_called = False
@staticmethod
def _hook(job, entry):
"""The core hook, which can safely call job.record."""
entries = []
# poll all our warning loggers for new warnings
for timestamp, msg in job._read_warnings():
warning_entry = base_job.status_log_entry(
'WARN', None, None, msg, {}, timestamp=timestamp)
entries.append(warning_entry)
job.record_entry(warning_entry)
# echo rendered versions of all the status logs to info
entries.append(entry)
for entry in entries:
rendered_entry = job._logger.render_entry(entry)
logging.info(rendered_entry)
job._parse_status(rendered_entry)
class base_server_job(base_job.base_job):
"""The server-side concrete implementation of base_job.
Optional properties provided by this implementation:
serverdir
conmuxdir
num_tests_run
num_tests_failed
warning_manager
warning_loggers
"""
_STATUS_VERSION = 1
def __init__(self, control, args, resultdir, label, user, machines,
client=False, parse_job='',
ssh_user='root', ssh_port=22, ssh_pass='',
group_name='', tag='',
control_filename=SERVER_CONTROL_FILENAME):
"""
Create a server side job object.
@param control: The pathname of the control file.
@param args: Passed to the control file.
@param resultdir: Where to throw the results.
@param label: Description of the job.
@param user: Username for the job (email address).
@param client: True if this is a client-side control file.
@param parse_job: string, if supplied it is the job execution tag that
the results will be passed through to the TKO parser with.
@param ssh_user: The SSH username. [root]
@param ssh_port: The SSH port number. [22]
@param ssh_pass: The SSH passphrase, if needed.
@param group_name: If supplied, this will be written out as
host_group_name in the keyvals file for the parser.
@param tag: The job execution tag from the scheduler. [optional]
@param control_filename: The filename where the server control file
should be written in the results directory.
"""
super(base_server_job, self).__init__(resultdir=resultdir)
path = os.path.dirname(__file__)
self.control = control
self._uncollected_log_file = os.path.join(self.resultdir,
'uncollected_logs')
debugdir = os.path.join(self.resultdir, 'debug')
if not os.path.exists(debugdir):
os.mkdir(debugdir)
if user:
self.user = user
else:
self.user = getpass.getuser()
self.args = args
self.machines = machines
self._client = client
self.warning_loggers = set()
self.warning_manager = warning_manager()
self._ssh_user = ssh_user
self._ssh_port = ssh_port
self._ssh_pass = ssh_pass
self.tag = tag
self.last_boot_tag = None
self.hosts = set()
self.drop_caches = False
self.drop_caches_between_iterations = False
self._control_filename = control_filename
self.logging = logging_manager.get_logging_manager(
manage_stdout_and_stderr=True, redirect_fds=True)
subcommand.logging_manager_object = self.logging
self.sysinfo = sysinfo.sysinfo(self.resultdir)
self.profilers = profilers.profilers(self)
job_data = {'label' : label, 'user' : user,
'hostname' : ','.join(machines),
'drone' : platform.node(),
'status_version' : str(self._STATUS_VERSION),
'job_started' : str(int(time.time()))}
if group_name:
job_data['host_group_name'] = group_name
# only write these keyvals out on the first job in a resultdir
if 'job_started' not in utils.read_keyval(self.resultdir):
job_data.update(get_site_job_data(self))
utils.write_keyval(self.resultdir, job_data)
self._parse_job = parse_job
self._using_parser = (self._parse_job and len(machines) <= 1)
self.pkgmgr = packages.PackageManager(
self.autodir, run_function_dargs={'timeout':600})
self.num_tests_run = 0
self.num_tests_failed = 0
self._register_subcommand_hooks()
# these components aren't usable on the server
self.bootloader = None
self.harness = None
# set up the status logger
self._indenter = status_indenter()
self._logger = base_job.status_logger(
self, self._indenter, 'status.log', 'status.log',
record_hook=server_job_record_hook(self))
@classmethod
def _find_base_directories(cls):
"""
Determine locations of autodir, clientdir and serverdir. Assumes
that this file is located within serverdir and uses __file__ along
with relative paths to resolve the location.
"""
serverdir = os.path.abspath(os.path.dirname(__file__))
autodir = os.path.normpath(os.path.join(serverdir, '..'))
clientdir = os.path.join(autodir, 'client')
return autodir, clientdir, serverdir
def _find_resultdir(self, resultdir):
"""
Determine the location of resultdir. For server jobs we expect one to
always be explicitly passed in to __init__, so just return that.
"""
if resultdir:
return os.path.normpath(resultdir)
else:
return None
def _get_status_logger(self):
"""Return a reference to the status logger."""
return self._logger
@staticmethod
def _load_control_file(path):
f = open(path)
try:
control_file = f.read()
finally:
f.close()
return re.sub('\r', '', control_file)
def _register_subcommand_hooks(self):
"""
Register some hooks into the subcommand modules that allow us
to properly clean up self.hosts created in forked subprocesses.
"""
def on_fork(cmd):
self._existing_hosts_on_fork = set(self.hosts)
def on_join(cmd):
new_hosts = self.hosts - self._existing_hosts_on_fork
for host in new_hosts:
host.close()
subcommand.subcommand.register_fork_hook(on_fork)
subcommand.subcommand.register_join_hook(on_join)
def init_parser(self):
"""
Start the continuous parsing of self.resultdir. This sets up
the database connection and inserts the basic job object into
the database if necessary.
"""
if not self._using_parser:
return
# redirect parser debugging to .parse.log
parse_log = os.path.join(self.resultdir, '.parse.log')
parse_log = open(parse_log, 'w', 0)
tko_utils.redirect_parser_debugging(parse_log)
# create a job model object and set up the db
self.results_db = tko_db.db(autocommit=True)
self.parser = status_lib.parser(self._STATUS_VERSION)
self.job_model = self.parser.make_job(self.resultdir)
self.parser.start(self.job_model)
# check if a job already exists in the db and insert it if
# it does not
job_idx = self.results_db.find_job(self._parse_job)
if job_idx is None:
self.results_db.insert_job(self._parse_job, self.job_model)
else:
machine_idx = self.results_db.lookup_machine(self.job_model.machine)
self.job_model.index = job_idx
self.job_model.machine_idx = machine_idx
def cleanup_parser(self):
"""
This should be called after the server job is finished
to carry out any remaining cleanup (e.g. flushing any
remaining test results to the results db)
"""
if not self._using_parser:
return
final_tests = self.parser.end()
for test in final_tests:
self.__insert_test(test)
self._using_parser = False
def verify(self):
if not self.machines:
raise error.AutoservError('No machines specified to verify')
if self.resultdir:
os.chdir(self.resultdir)
try:
namespace = {'machines' : self.machines, 'job' : self,
'ssh_user' : self._ssh_user,
'ssh_port' : self._ssh_port,
'ssh_pass' : self._ssh_pass}
self._execute_code(VERIFY_CONTROL_FILE, namespace, protect=False)
except Exception, e:
msg = ('Verify failed\n' + str(e) + '\n' + traceback.format_exc())
self.record('ABORT', None, None, msg)
raise
def repair(self, host_protection):
if not self.machines:
raise error.AutoservError('No machines specified to repair')
if self.resultdir:
os.chdir(self.resultdir)
namespace = {'machines': self.machines, 'job': self,
'ssh_user': self._ssh_user, 'ssh_port': self._ssh_port,
'ssh_pass': self._ssh_pass,
'protection_level': host_protection}
self._execute_code(REPAIR_CONTROL_FILE, namespace, protect=False)
def precheck(self):
"""
perform any additional checks in derived classes.
"""
pass
def enable_external_logging(self):
"""
Start or restart external logging mechanism.
"""
pass
def disable_external_logging(self):
"""
Pause or stop external logging mechanism.
"""
pass
def use_external_logging(self):
"""
Return True if external logging should be used.
"""
return False
def _make_parallel_wrapper(self, function, machines, log):
"""Wrap function as appropriate for calling by parallel_simple."""
is_forking = not (len(machines) == 1 and self.machines == machines)
if self._parse_job and is_forking and log:
def wrapper(machine):
self._parse_job += "/" + machine
self._using_parser = True
self.machines = [machine]
self.push_execution_context(machine)
os.chdir(self.resultdir)
utils.write_keyval(self.resultdir, {"hostname": machine})
self.init_parser()
result = function(machine)
self.cleanup_parser()
return result
elif len(machines) > 1 and log:
def wrapper(machine):
self.push_execution_context(machine)
os.chdir(self.resultdir)
machine_data = {'hostname' : machine,
'status_version' : str(self._STATUS_VERSION)}
utils.write_keyval(self.resultdir, machine_data)
result = function(machine)
return result
else:
wrapper = function
return wrapper
def parallel_simple(self, function, machines, log=True, timeout=None,
return_results=False):
"""
Run 'function' using parallel_simple, with an extra wrapper to handle
the necessary setup for continuous parsing, if possible. If continuous
parsing is already properly initialized then this should just work.
@param function: A callable to run in parallel given each machine.
@param machines: A list of machine names to be passed one per subcommand
invocation of function.
@param log: If True, output will be written to output in a subdirectory
named after each machine.
@param timeout: Seconds after which the function call should timeout.
@param return_results: If True instead of an AutoServError being raised
on any error a list of the results|exceptions from the function
called on each arg is returned. [default: False]
@raises error.AutotestError: If any of the functions failed.
"""
wrapper = self._make_parallel_wrapper(function, machines, log)
return subcommand.parallel_simple(wrapper, machines,
log=log, timeout=timeout,
return_results=return_results)
def parallel_on_machines(self, function, machines, timeout=None):
"""
@param function: Called in parallel with one machine as its argument.
@param machines: A list of machines to call function(machine) on.
@param timeout: Seconds after which the function call should timeout.
@returns A list of machines on which function(machine) returned
without raising an exception.
"""
results = self.parallel_simple(function, machines, timeout=timeout,
return_results=True)
success_machines = []
for result, machine in itertools.izip(results, machines):
if not isinstance(result, Exception):
success_machines.append(machine)
return success_machines
_USE_TEMP_DIR = object()
def run(self, cleanup=False, install_before=False, install_after=False,
collect_crashdumps=True, namespace={}, control=None,
control_file_dir=None, only_collect_crashinfo=False):
# for a normal job, make sure the uncollected logs file exists
# for a crashinfo-only run it should already exist, bail out otherwise
created_uncollected_logs = False
if self.resultdir and not os.path.exists(self._uncollected_log_file):
if only_collect_crashinfo:
# if this is a crashinfo-only run, and there were no existing
# uncollected logs, just bail out early
logging.info("No existing uncollected logs, "
"skipping crashinfo collection")
return
else:
log_file = open(self._uncollected_log_file, "w")
pickle.dump([], log_file)
log_file.close()
created_uncollected_logs = True
# use a copy so changes don't affect the original dictionary
namespace = namespace.copy()
machines = self.machines
if control is None:
if self.control is None:
control = ''
else:
control = self._load_control_file(self.control)
if control_file_dir is None:
control_file_dir = self.resultdir
self.aborted = False
namespace['machines'] = machines
namespace['args'] = self.args
namespace['job'] = self
namespace['ssh_user'] = self._ssh_user
namespace['ssh_port'] = self._ssh_port
namespace['ssh_pass'] = self._ssh_pass
test_start_time = int(time.time())
if self.resultdir:
os.chdir(self.resultdir)
# touch status.log so that the parser knows a job is running here
open(self.get_status_log_path(), 'a').close()
self.enable_external_logging()
collect_crashinfo = True
temp_control_file_dir = None
try:
try:
if install_before and machines:
self._execute_code(INSTALL_CONTROL_FILE, namespace)
if only_collect_crashinfo:
return
# determine the dir to write the control files to
cfd_specified = (control_file_dir
and control_file_dir is not self._USE_TEMP_DIR)
if cfd_specified:
temp_control_file_dir = None
else:
temp_control_file_dir = tempfile.mkdtemp(
suffix='temp_control_file_dir')
control_file_dir = temp_control_file_dir
server_control_file = os.path.join(control_file_dir,
self._control_filename)
client_control_file = os.path.join(control_file_dir,
CLIENT_CONTROL_FILENAME)
if self._client:
namespace['control'] = control
utils.open_write_close(client_control_file, control)
shutil.copyfile(CLIENT_WRAPPER_CONTROL_FILE,
server_control_file)
else:
utils.open_write_close(server_control_file, control)
logging.info("Processing control file")
self._execute_code(server_control_file, namespace)
logging.info("Finished processing control file")
# no error occured, so we don't need to collect crashinfo
collect_crashinfo = False
except Exception, e:
try:
logging.exception(
'Exception escaped control file, job aborting:')
self.record('INFO', None, None, str(e),
{'job_abort_reason': str(e)})
except:
pass # don't let logging exceptions here interfere
raise
finally:
if temp_control_file_dir:
# Clean up temp directory used for copies of the control files
try:
shutil.rmtree(temp_control_file_dir)
except Exception, e:
logging.warn('Could not remove temp directory %s: %s',
temp_control_file_dir, e)
if machines and (collect_crashdumps or collect_crashinfo):
namespace['test_start_time'] = test_start_time
if collect_crashinfo:
# includes crashdumps
self._execute_code(CRASHINFO_CONTROL_FILE, namespace)
else:
self._execute_code(CRASHDUMPS_CONTROL_FILE, namespace)
if self._uncollected_log_file and created_uncollected_logs:
os.remove(self._uncollected_log_file)
self.disable_external_logging()
if cleanup and machines:
self._execute_code(CLEANUP_CONTROL_FILE, namespace)
if install_after and machines:
self._execute_code(INSTALL_CONTROL_FILE, namespace)
def run_test(self, url, *args, **dargs):
"""
Summon a test object and run it.
tag
tag to add to testname
url
url of the test to run
"""
group, testname = self.pkgmgr.get_package_name(url, 'test')
testname, subdir, tag = self._build_tagged_test_name(testname, dargs)
outputdir = self._make_test_outputdir(subdir)
def group_func():
try:
test.runtest(self, url, tag, args, dargs)
except error.TestBaseException, e:
self.record(e.exit_status, subdir, testname, str(e))
raise
except Exception, e:
info = str(e) + "\n" + traceback.format_exc()
self.record('FAIL', subdir, testname, info)
raise
else:
self.record('GOOD', subdir, testname, 'completed successfully')
result, exc_info = self._run_group(testname, subdir, group_func)
if exc_info and isinstance(exc_info[1], error.TestBaseException):
return False
elif exc_info:
raise exc_info[0], exc_info[1], exc_info[2]
else:
return True
def _run_group(self, name, subdir, function, *args, **dargs):
"""\
Underlying method for running something inside of a group.
"""
result, exc_info = None, None
try:
self.record('START', subdir, name)
result = function(*args, **dargs)
except error.TestBaseException, e:
self.record("END %s" % e.exit_status, subdir, name)
exc_info = sys.exc_info()
except Exception, e:
err_msg = str(e) + '\n'
err_msg += traceback.format_exc()
self.record('END ABORT', subdir, name, err_msg)
raise error.JobError(name + ' failed\n' + traceback.format_exc())
else:
self.record('END GOOD', subdir, name)
return result, exc_info
def run_group(self, function, *args, **dargs):
"""\
function:
subroutine to run
*args:
arguments for the function
"""
name = function.__name__
# Allow the tag for the group to be specified.
tag = dargs.pop('tag', None)
if tag:
name = tag
return self._run_group(name, None, function, *args, **dargs)[0]
def run_reboot(self, reboot_func, get_kernel_func):
"""\
A specialization of run_group meant specifically for handling
a reboot. Includes support for capturing the kernel version
after the reboot.
reboot_func: a function that carries out the reboot
get_kernel_func: a function that returns a string
representing the kernel version.
"""
try:
self.record('START', None, 'reboot')
reboot_func()
except Exception, e:
err_msg = str(e) + '\n' + traceback.format_exc()
self.record('END FAIL', None, 'reboot', err_msg)
raise
else:
kernel = get_kernel_func()
self.record('END GOOD', None, 'reboot',
optional_fields={"kernel": kernel})
def run_control(self, path):
"""Execute a control file found at path (relative to the autotest
path). Intended for executing a control file within a control file,
not for running the top-level job control file."""
path = os.path.join(self.autodir, path)
control_file = self._load_control_file(path)
self.run(control=control_file, control_file_dir=self._USE_TEMP_DIR)
def add_sysinfo_command(self, command, logfile=None, on_every_test=False):
self._add_sysinfo_loggable(sysinfo.command(command, logf=logfile),
on_every_test)
def add_sysinfo_logfile(self, file, on_every_test=False):
self._add_sysinfo_loggable(sysinfo.logfile(file), on_every_test)
def _add_sysinfo_loggable(self, loggable, on_every_test):
if on_every_test:
self.sysinfo.test_loggables.add(loggable)
else:
self.sysinfo.boot_loggables.add(loggable)
def _read_warnings(self):
"""Poll all the warning loggers and extract any new warnings that have
been logged. If the warnings belong to a category that is currently
disabled, this method will discard them and they will no longer be
retrievable.
Returns a list of (timestamp, message) tuples, where timestamp is an
integer epoch timestamp."""
warnings = []
while True:
# pull in a line of output from every logger that has
# output ready to be read
loggers, _, _ = select.select(self.warning_loggers, [], [], 0)
closed_loggers = set()
for logger in loggers:
line = logger.readline()
# record any broken pipes (aka line == empty)
if len(line) == 0:
closed_loggers.add(logger)
continue
# parse out the warning
timestamp, msgtype, msg = line.split('\t', 2)
timestamp = int(timestamp)
# if the warning is valid, add it to the results
if self.warning_manager.is_valid(timestamp, msgtype):
warnings.append((timestamp, msg.strip()))
# stop listening to loggers that are closed
self.warning_loggers -= closed_loggers
# stop if none of the loggers have any output left
if not loggers:
break
# sort into timestamp order
warnings.sort()
return warnings
def _unique_subdirectory(self, base_subdirectory_name):
"""Compute a unique results subdirectory based on the given name.
Appends base_subdirectory_name with a number as necessary to find a
directory name that doesn't already exist.
"""
subdirectory = base_subdirectory_name
counter = 1
while os.path.exists(os.path.join(self.resultdir, subdirectory)):
subdirectory = base_subdirectory_name + '.' + str(counter)
counter += 1
return subdirectory
def get_record_context(self):
"""Returns an object representing the current job.record context.
The object returned is an opaque object with a 0-arg restore method
which can be called to restore the job.record context (i.e. indentation)
to the current level. The intention is that it should be used when
something external which generate job.record calls (e.g. an autotest
client) can fail catastrophically and the server job record state
needs to be reset to its original "known good" state.
@return: A context object with a 0-arg restore() method."""
return self._indenter.get_context()
def record_summary(self, status_code, test_name, reason='', attributes=None,
distinguishing_attributes=(), child_test_ids=None):
"""Record a summary test result.
@param status_code: status code string, see
common_lib.log.is_valid_status()
@param test_name: name of the test
@param reason: (optional) string providing detailed reason for test
outcome
@param attributes: (optional) dict of string keyvals to associate with
this result
@param distinguishing_attributes: (optional) list of attribute names
that should be used to distinguish identically-named test
results. These attributes should be present in the attributes
parameter. This is used to generate user-friendly subdirectory
names.
@param child_test_ids: (optional) list of test indices for test results
used in generating this result.
"""
subdirectory_name_parts = [test_name]
for attribute in distinguishing_attributes:
assert attributes
assert attribute in attributes, '%s not in %s' % (attribute,
attributes)
subdirectory_name_parts.append(attributes[attribute])
base_subdirectory_name = '.'.join(subdirectory_name_parts)
subdirectory = self._unique_subdirectory(base_subdirectory_name)
subdirectory_path = os.path.join(self.resultdir, subdirectory)
os.mkdir(subdirectory_path)
self.record(status_code, subdirectory, test_name,
status=reason, optional_fields={'is_summary': True})
if attributes:
utils.write_keyval(subdirectory_path, attributes)
if child_test_ids:
ids_string = ','.join(str(test_id) for test_id in child_test_ids)
summary_data = {'child_test_ids': ids_string}
utils.write_keyval(os.path.join(subdirectory_path, 'summary_data'),
summary_data)
def disable_warnings(self, warning_type):
self.warning_manager.disable_warnings(warning_type)
self.record("INFO", None, None,
"disabling %s warnings" % warning_type,
{"warnings.disable": warning_type})
def enable_warnings(self, warning_type):
self.warning_manager.enable_warnings(warning_type)
self.record("INFO", None, None,
"enabling %s warnings" % warning_type,
{"warnings.enable": warning_type})
def get_status_log_path(self, subdir=None):
"""Return the path to the job status log.
@param subdir - Optional paramter indicating that you want the path
to a subdirectory status log.
@returns The path where the status log should be.
"""
if self.resultdir:
if subdir:
return os.path.join(self.resultdir, subdir, "status.log")
else:
return os.path.join(self.resultdir, "status.log")
else:
return None
def _update_uncollected_logs_list(self, update_func):
"""Updates the uncollected logs list in a multi-process safe manner.
@param update_func - a function that updates the list of uncollected
logs. Should take one parameter, the list to be updated.
"""
if self._uncollected_log_file:
log_file = open(self._uncollected_log_file, "r+")
fcntl.flock(log_file, fcntl.LOCK_EX)
try:
uncollected_logs = pickle.load(log_file)
update_func(uncollected_logs)
log_file.seek(0)
log_file.truncate()
pickle.dump(uncollected_logs, log_file)
log_file.flush()
finally:
fcntl.flock(log_file, fcntl.LOCK_UN)
log_file.close()
def add_client_log(self, hostname, remote_path, local_path):
"""Adds a new set of client logs to the list of uncollected logs,
to allow for future log recovery.
@param host - the hostname of the machine holding the logs
@param remote_path - the directory on the remote machine holding logs
@param local_path - the local directory to copy the logs into
"""
def update_func(logs_list):
logs_list.append((hostname, remote_path, local_path))
self._update_uncollected_logs_list(update_func)
def remove_client_log(self, hostname, remote_path, local_path):
"""Removes a set of client logs from the list of uncollected logs,
to allow for future log recovery.
@param host - the hostname of the machine holding the logs
@param remote_path - the directory on the remote machine holding logs
@param local_path - the local directory to copy the logs into
"""
def update_func(logs_list):
logs_list.remove((hostname, remote_path, local_path))
self._update_uncollected_logs_list(update_func)
def get_client_logs(self):
"""Retrieves the list of uncollected logs, if it exists.
@returns A list of (host, remote_path, local_path) tuples. Returns
an empty list if no uncollected logs file exists.
"""
log_exists = (self._uncollected_log_file and
os.path.exists(self._uncollected_log_file))
if log_exists:
return pickle.load(open(self._uncollected_log_file))
else:
return []
def _fill_server_control_namespace(self, namespace, protect=True):
"""
Prepare a namespace to be used when executing server control files.
This sets up the control file API by importing modules and making them
available under the appropriate names within namespace.
For use by _execute_code().
Args:
namespace: The namespace dictionary to fill in.
protect: Boolean. If True (the default) any operation that would
clobber an existing entry in namespace will cause an error.
Raises:
error.AutoservError: When a name would be clobbered by import.
"""
def _import_names(module_name, names=()):
"""
Import a module and assign named attributes into namespace.
Args:
module_name: The string module name.
names: A limiting list of names to import from module_name. If
empty (the default), all names are imported from the module
similar to a "from foo.bar import *" statement.
Raises:
error.AutoservError: When a name being imported would clobber
a name already in namespace.
"""
module = __import__(module_name, {}, {}, names)
# No names supplied? Import * from the lowest level module.
# (Ugh, why do I have to implement this part myself?)
if not names:
for submodule_name in module_name.split('.')[1:]:
module = getattr(module, submodule_name)
if hasattr(module, '__all__'):
names = getattr(module, '__all__')
else:
names = dir(module)
# Install each name into namespace, checking to make sure it
# doesn't override anything that already exists.
for name in names:
# Check for conflicts to help prevent future problems.
if name in namespace and protect:
if namespace[name] is not getattr(module, name):
raise error.AutoservError('importing name '
'%s from %s %r would override %r' %
(name, module_name, getattr(module, name),
namespace[name]))
else:
# Encourage cleanliness and the use of __all__ for a
# more concrete API with less surprises on '*' imports.
warnings.warn('%s (%r) being imported from %s for use '
'in server control files is not the '
'first occurrance of that import.' %
(name, namespace[name], module_name))
namespace[name] = getattr(module, name)
# This is the equivalent of prepending a bunch of import statements to
# the front of the control script.
namespace.update(os=os, sys=sys, logging=logging)
_import_names('autotest_lib.server',
('hosts', 'autotest', 'kvm', 'git', 'standalone_profiler',
'source_kernel', 'rpm_kernel', 'deb_kernel', 'git_kernel'))
_import_names('autotest_lib.server.subcommand',
('parallel', 'parallel_simple', 'subcommand'))
_import_names('autotest_lib.server.utils',
('run', 'get_tmp_dir', 'sh_escape', 'parse_machine'))
_import_names('autotest_lib.client.common_lib.error')
_import_names('autotest_lib.client.common_lib.barrier', ('barrier',))
# Inject ourself as the job object into other classes within the API.
# (Yuck, this injection is a gross thing be part of a public API. -gps)
#
# XXX Base & SiteAutotest do not appear to use .job. Who does?
namespace['autotest'].Autotest.job = self
# server.hosts.base_classes.Host uses .job.
namespace['hosts'].Host.job = self
namespace['hosts'].factory.ssh_user = self._ssh_user
namespace['hosts'].factory.ssh_port = self._ssh_port
namespace['hosts'].factory.ssh_pass = self._ssh_pass
def _execute_code(self, code_file, namespace, protect=True):
"""
Execute code using a copy of namespace as a server control script.
Unless protect_namespace is explicitly set to False, the dict will not
be modified.
Args:
code_file: The filename of the control file to execute.
namespace: A dict containing names to make available during execution.
protect: Boolean. If True (the default) a copy of the namespace dict
is used during execution to prevent the code from modifying its
contents outside of this function. If False the raw dict is
passed in and modifications will be allowed.
"""
if protect:
namespace = namespace.copy()
self._fill_server_control_namespace(namespace, protect=protect)
# TODO: Simplify and get rid of the special cases for only 1 machine.
if len(self.machines) > 1:
machines_text = '\n'.join(self.machines) + '\n'
# Only rewrite the file if it does not match our machine list.
try:
machines_f = open(MACHINES_FILENAME, 'r')
existing_machines_text = machines_f.read()
machines_f.close()
except EnvironmentError:
existing_machines_text = None
if machines_text != existing_machines_text:
utils.open_write_close(MACHINES_FILENAME, machines_text)
execfile(code_file, namespace, namespace)
def _parse_status(self, new_line):
if not self._using_parser:
return
new_tests = self.parser.process_lines([new_line])
for test in new_tests:
self.__insert_test(test)
def __insert_test(self, test):
"""
An internal method to insert a new test result into the
database. This method will not raise an exception, even if an
error occurs during the insert, to avoid failing a test
simply because of unexpected database issues."""
self.num_tests_run += 1
if status_lib.is_worse_than_or_equal_to(test.status, 'FAIL'):
self.num_tests_failed += 1
try:
self.results_db.insert_test(self.job_model, test)
except Exception:
msg = ("WARNING: An unexpected error occured while "
"inserting test results into the database. "
"Ignoring error.\n" + traceback.format_exc())
print >> sys.stderr, msg
def preprocess_client_state(self):
"""
Produce a state file for initializing the state of a client job.
Creates a new client state file with all the current server state, as
well as some pre-set client state.
@returns The path of the file the state was written into.
"""
# initialize the sysinfo state
self._state.set('client', 'sysinfo', self.sysinfo.serialize())
# dump the state out to a tempfile
fd, file_path = tempfile.mkstemp(dir=self.tmpdir)
os.close(fd)
# write_to_file doesn't need locking, we exclusively own file_path
self._state.write_to_file(file_path)
return file_path
def postprocess_client_state(self, state_path):
"""
Update the state of this job with the state from a client job.
Updates the state of the server side of a job with the final state
of a client job that was run. Updates the non-client-specific state,
pulls in some specific bits from the client-specific state, and then
discards the rest. Removes the state file afterwards
@param state_file A path to the state file from the client.
"""
# update the on-disk state
try:
self._state.read_from_file(state_path)
os.remove(state_path)
except OSError, e:
# ignore file-not-found errors
if e.errno != errno.ENOENT:
raise
else:
logging.debug('Client state file %s not found', state_path)
# update the sysinfo state
if self._state.has('client', 'sysinfo'):
self.sysinfo.deserialize(self._state.get('client', 'sysinfo'))
# drop all the client-specific state
self._state.discard_namespace('client')
def clear_all_known_hosts(self):
"""Clears known hosts files for all AbstractSSHHosts."""
for host in self.hosts:
if isinstance(host, abstract_ssh.AbstractSSHHost):
host.clear_known_hosts()
site_server_job = utils.import_site_class(
__file__, "autotest_lib.server.site_server_job", "site_server_job",
base_server_job)
class server_job(site_server_job):
pass
class warning_manager(object):
"""Class for controlling warning logs. Manages the enabling and disabling
of warnings."""
def __init__(self):
# a map of warning types to a list of disabled time intervals
self.disabled_warnings = {}
def is_valid(self, timestamp, warning_type):
"""Indicates if a warning (based on the time it occured and its type)
is a valid warning. A warning is considered "invalid" if this type of
warning was marked as "disabled" at the time the warning occured."""
disabled_intervals = self.disabled_warnings.get(warning_type, [])
for start, end in disabled_intervals:
if timestamp >= start and (end is None or timestamp < end):
return False
return True
def disable_warnings(self, warning_type, current_time_func=time.time):
"""As of now, disables all further warnings of this type."""
intervals = self.disabled_warnings.setdefault(warning_type, [])
if not intervals or intervals[-1][1] is not None:
intervals.append((int(current_time_func()), None))
def enable_warnings(self, warning_type, current_time_func=time.time):
"""As of now, enables all further warnings of this type."""
intervals = self.disabled_warnings.get(warning_type, [])
if intervals and intervals[-1][1] is None:
intervals[-1] = (intervals[-1][0], int(current_time_func()))