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scheduler.py
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# THIS FILE IS PART OF THE CYLC SUITE ENGINE.
# Copyright (C) 2008-2019 NIWA & British Crown (Met Office) & Contributors.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Cylc scheduler server."""
import asyncio
from collections import deque
from itertools import zip_longest
import logging
import os
from shlex import quote
from queue import Empty, Queue
from shutil import copytree, rmtree
from subprocess import Popen, PIPE, DEVNULL
import sys
from threading import Barrier
from time import sleep, time
import traceback
from uuid import uuid4
import zmq
from zmq.auth.thread import ThreadAuthenticator
from metomi.isodatetime.parsers import TimePointParser
from cylc.flow import LOG
from cylc.flow import main_loop
from cylc.flow.broadcast_mgr import BroadcastMgr
from cylc.flow.cfgspec.glbl_cfg import glbl_cfg
from cylc.flow.config import SuiteConfig
from cylc.flow.cycling.loader import get_point, standardise_point_string
from cylc.flow.daemonize import daemonize
from cylc.flow.exceptions import (
CylcError,
PointParsingError,
TaskProxySequenceBoundsError
)
import cylc.flow.flags
from cylc.flow.host_select import select_suite_host
from cylc.flow.hostuserutil import get_host, get_user
from cylc.flow.job_pool import JobPool
from cylc.flow.loggingutil import (
TimestampRotatingFileHandler,
ReferenceLogFileHandler
)
from cylc.flow.network import API
from cylc.flow.network.server import SuiteRuntimeServer
from cylc.flow.network.publisher import WorkflowPublisher
from cylc.flow.parsec.OrderedDict import DictTree
from cylc.flow.parsec.util import printcfg
from cylc.flow.parsec.validate import DurationFloat
from cylc.flow.pathutil import (
get_suite_run_dir,
get_suite_run_log_dir,
get_suite_run_rc_dir,
get_suite_run_share_dir,
get_suite_run_work_dir,
get_suite_test_log_name,
make_suite_run_tree,
)
from cylc.flow.profiler import Profiler
from cylc.flow.state_summary_mgr import StateSummaryMgr
from cylc.flow.subprocpool import SubProcPool
from cylc.flow.suite_db_mgr import SuiteDatabaseManager
from cylc.flow.suite_events import (
SuiteEventContext, SuiteEventHandler)
from cylc.flow.suite_status import StopMode, AutoRestartMode
from cylc.flow import suite_files
from cylc.flow.taskdef import TaskDef
from cylc.flow.task_events_mgr import TaskEventsManager
from cylc.flow.task_id import TaskID
from cylc.flow.task_job_logs import JOB_LOG_JOB, get_task_job_log
from cylc.flow.task_job_mgr import TaskJobManager
from cylc.flow.task_pool import TaskPool
from cylc.flow.task_proxy import TaskProxy
from cylc.flow.task_state import (
TASK_STATUSES_ACTIVE,
TASK_STATUSES_NEVER_ACTIVE,
TASK_STATUSES_SUCCESS,
TASK_STATUS_FAILED)
from cylc.flow.templatevars import load_template_vars
from cylc.flow import __version__ as CYLC_VERSION
from cylc.flow.data_store_mgr import DataStoreMgr
from cylc.flow.wallclock import (
get_current_time_string,
get_seconds_as_interval_string,
get_time_string_from_unix_time as time2str,
get_utc_mode)
from cylc.flow.xtrigger_mgr import XtriggerManager
class SchedulerStop(CylcError):
"""Scheduler normal stop."""
pass
class SchedulerError(CylcError):
"""Scheduler expected error stop."""
pass
class SchedulerUUID(object):
"""Scheduler identifier - which persists on restart."""
__slots__ = ('value')
def __init__(self):
self.value = str(uuid4())
def __str__(self):
return self.value
class Scheduler(object):
"""Cylc scheduler server."""
EVENT_STARTUP = SuiteEventHandler.EVENT_STARTUP
EVENT_SHUTDOWN = SuiteEventHandler.EVENT_SHUTDOWN
EVENT_ABORTED = SuiteEventHandler.EVENT_ABORTED
EVENT_TIMEOUT = SuiteEventHandler.EVENT_TIMEOUT
EVENT_INACTIVITY_TIMEOUT = SuiteEventHandler.EVENT_INACTIVITY_TIMEOUT
EVENT_STALLED = SuiteEventHandler.EVENT_STALLED
# Intervals in seconds
INTERVAL_MAIN_LOOP = 1.0
INTERVAL_MAIN_LOOP_QUICK = 0.5
INTERVAL_STOP_KILL = 10.0
INTERVAL_STOP_PROCESS_POOL_EMPTY = 0.5
INTERVAL_AUTO_RESTART_ERROR = 5
START_MESSAGE_PREFIX = 'Suite server: '
START_MESSAGE_TMPL = (
START_MESSAGE_PREFIX +
'url=%(comms_method)s://%(host)s:%(port)s/ pid=%(pid)s')
START_PUB_MESSAGE_PREFIX = 'Suite publisher: '
START_PUB_MESSAGE_TMPL = (
START_PUB_MESSAGE_PREFIX +
'url=%(comms_method)s://%(host)s:%(port)s')
# Dependency negotiation etc. will run after these commands
PROC_CMDS = (
'release_suite',
'release_tasks',
'kill_tasks',
'reset_task_states',
'spawn_tasks',
'trigger_tasks',
'nudge',
'insert_tasks',
'reload_suite'
)
def __init__(self, is_restart, options, args):
self.options = options
if self.options.no_detach:
self.options.format = 'plain'
self.profiler = Profiler(self.options.profile_mode)
self.suite = args[0]
self.uuid_str = SchedulerUUID()
self.suite_dir = suite_files.get_suite_source_dir(
self.suite)
self.suiterc = suite_files.get_suite_rc(self.suite)
self.suiterc_update_time = None
# For user-defined batch system handlers
sys.path.append(os.path.join(self.suite_dir, 'python'))
sys.path.append(os.path.join(self.suite_dir, 'lib', 'python'))
self.suite_run_dir = get_suite_run_dir(self.suite)
self.suite_work_dir = get_suite_run_work_dir(self.suite)
self.suite_share_dir = get_suite_run_share_dir(self.suite)
self.suite_log_dir = get_suite_run_log_dir(self.suite)
self.config = None
self.cylc_config = None
self.is_restart = is_restart
self.template_vars = load_template_vars(
self.options.templatevars, self.options.templatevars_file)
self.owner = get_user()
self.host = get_host()
self.is_updated = False
self.is_stalled = False
self.contact_data = None
# initialize some items in case of early shutdown
# (required in the shutdown() method)
self.state_summary_mgr = None
self.pool = None
self.proc_pool = None
self.task_job_mgr = None
self.task_events_mgr = None
self.suite_event_handler = None
self.zmq_context = None
self.server = None
self.port = None
self.publisher = None
self.pub_port = None
self.command_queue = None
self.message_queue = None
self.ext_trigger_queue = None
self.data_store_mgr = None
self.job_pool = None
self._profile_amounts = {}
self._profile_update_times = {}
self.stop_mode = None
# TODO - stop task should be held by the task pool.
self.stop_task = None
self.stop_clock_time = None # When not None, in Unix time
self.suite_timer_timeout = 0.0
self.suite_timer_active = False
self.suite_inactivity_timeout = 0.0
self.already_inactive = False
self.time_next_kill = None
self.already_timed_out = False
self.suite_db_mgr = SuiteDatabaseManager(
suite_files.get_suite_srv_dir(self.suite), # pri_d
os.path.join(self.suite_run_dir, 'log')) # pub_d
self.broadcast_mgr = BroadcastMgr(self.suite_db_mgr)
self.xtrigger_mgr = None # type: XtriggerManager
# Last 10 durations (in seconds) of the main loop
self.main_loop_intervals = deque(maxlen=10)
self.can_auto_stop = True
self.previous_profile_point = 0
self.count = 0
# auto-restart settings
self.auto_restart_mode = None
self.auto_restart_time = None
self.main_loop_plugins = None
def start(self):
"""Start the server."""
if self.options.format == 'plain':
self._start_print_blurb()
make_suite_run_tree(self.suite)
if self.is_restart:
self.suite_db_mgr.restart_upgrade()
try:
if not self.options.no_detach:
daemonize(self)
self._setup_suite_logger()
self.data_store_mgr = DataStoreMgr(self)
# *** Network Related ***
# TODO: this in zmq asyncio context?
# Requires the Cylc main loop in asyncio first
# And use of concurrent.futures.ThreadPoolExecutor?
self.zmq_context = zmq.Context()
# create & configure an authenticator for the ZMQ context
self.curve_auth = ThreadAuthenticator(self.zmq_context, log=LOG)
self.curve_auth.start() # start the authentication thread
# Setting the location means that the CurveZMQ auth will only
# accept public client certificates from the given directory, as
# generated by a user when they initiate a ZMQ socket ready to
# connect to a server.
suite_srv_dir = suite_files.get_suite_srv_dir(self.suite)
client_pub_keyinfo = suite_files.KeyInfo(
suite_files.KeyType.PUBLIC,
suite_files.KeyOwner.CLIENT,
suite_srv_dir=suite_srv_dir)
client_pub_key_dir = client_pub_keyinfo.key_path
self.curve_auth.configure_curve(
domain='*',
location=(client_pub_key_dir)
)
# create thread sync barrier for setup
barrier = Barrier(3, timeout=10)
port_range = glbl_cfg().get(['suite servers', 'run ports'])
self.server = SuiteRuntimeServer(
self, context=self.zmq_context, barrier=barrier)
self.server.start(port_range[0], port_range[-1])
self.publisher = WorkflowPublisher(
self.suite, context=self.zmq_context, barrier=barrier)
self.publisher.start(port_range[0], port_range[-1])
# wait for threads to setup socket ports before continuing
barrier.wait()
self.port = self.server.port
self.pub_port = self.publisher.port
self.configure()
self.profiler.start()
self.run()
except SchedulerStop as exc:
# deliberate stop
self.shutdown(exc)
if self.auto_restart_mode == AutoRestartMode.RESTART_NORMAL:
self.suite_auto_restart()
# run shutdown coros
asyncio.get_event_loop().run_until_complete(
asyncio.gather(
*main_loop.get_runners(
self.main_loop_plugins,
main_loop.CoroTypes.ShutDown,
self
)
)
)
self.close_logs()
except SchedulerError as exc:
self.shutdown(exc)
self.close_logs()
sys.exit(1)
except KeyboardInterrupt as exc:
try:
self.shutdown(exc)
except Exception as exc2:
# In case of exceptions in the shutdown method itself.
LOG.exception(exc2)
sys.exit(1)
self.close_logs()
except Exception as exc:
try:
self.shutdown(exc)
except Exception as exc2:
# In case of exceptions in the shutdown method itself
LOG.exception(exc2)
self.close_logs()
raise exc
else:
# main loop ends (not used?)
self.shutdown(SchedulerStop(StopMode.AUTO.value))
self.close_logs()
def close_logs(self):
"""Close the Cylc logger."""
LOG.info("DONE") # main thread exit
self.profiler.stop()
for handler in LOG.handlers:
try:
handler.close()
except IOError:
# suppress traceback which `logging` might try to write to the
# log we are trying to close
pass
@staticmethod
def _start_print_blurb():
"""Print copyright and license information."""
logo = (
" ._. \n"
" | | \n"
"._____._. ._| |_____. \n"
"| .___| | | | | .___| \n"
"| !___| !_! | | !___. \n"
"!_____!___. |_!_____! \n"
" .___! | \n"
" !_____! \n"
)
cylc_license = """
The Cylc Suite Engine [%s]
Copyright (C) 2008-2019 NIWA
& British Crown (Met Office) & Contributors.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
This program comes with ABSOLUTELY NO WARRANTY.
It is free software, you are welcome to
redistribute it under certain conditions;
see `COPYING' in the Cylc source distribution.
""" % CYLC_VERSION
logo_lines = logo.splitlines()
license_lines = cylc_license.splitlines()
lmax = max(len(line) for line in license_lines)
print(('\n'.join((
('{0} {1: ^%s}' % lmax).format(*x) for x in zip_longest(
logo_lines, license_lines, fillvalue=' ' * (
len(logo_lines[-1]) + 1))))))
def _setup_suite_logger(self):
"""Set up logger for suite."""
# Remove stream handlers in detach mode
if not self.options.no_detach:
while LOG.handlers:
LOG.handlers[0].close()
LOG.removeHandler(LOG.handlers[0])
LOG.addHandler(
TimestampRotatingFileHandler(self.suite, self.options.no_detach))
def configure(self):
"""Configure suite server program."""
self.profiler.log_memory("scheduler.py: start configure")
# Start up essential services
self.proc_pool = SubProcPool()
self.state_summary_mgr = StateSummaryMgr()
self.command_queue = Queue()
self.message_queue = Queue()
self.ext_trigger_queue = Queue()
self.suite_event_handler = SuiteEventHandler(self.proc_pool)
self.job_pool = JobPool(self)
self.task_events_mgr = TaskEventsManager(
self.suite, self.proc_pool, self.suite_db_mgr, self.broadcast_mgr,
self.job_pool)
self.task_events_mgr.uuid_str = self.uuid_str
self.task_job_mgr = TaskJobManager(
self.suite, self.proc_pool, self.suite_db_mgr,
self.task_events_mgr, self.job_pool)
self.task_job_mgr.task_remote_mgr.uuid_str = self.uuid_str
self.xtrigger_mgr = XtriggerManager(
self.suite, self.owner,
broadcast_mgr=self.broadcast_mgr,
proc_pool=self.proc_pool,
suite_run_dir=self.suite_run_dir,
suite_share_dir=self.suite_share_dir,
suite_source_dir=self.suite_dir)
if self.is_restart:
# This logic handles the lack of initial cycle point in "suite.rc".
# Things that can't change on suite reload.
pri_dao = self.suite_db_mgr.get_pri_dao()
pri_dao.select_suite_params(self._load_suite_params)
# Configure contact data only after loading UUID string
self.configure_contact()
pri_dao.select_suite_template_vars(self._load_template_vars)
# Take checkpoint and commit immediately so that checkpoint can be
# copied to the public database.
pri_dao.take_checkpoints("restart")
pri_dao.execute_queued_items()
n_restart = pri_dao.select_checkpoint_id_restart_count()
else:
self.configure_contact()
n_restart = 0
# Copy local python modules from source to run directory
for sub_dir in ["python", os.path.join("lib", "python")]:
# TODO - eventually drop the deprecated "python" sub-dir.
suite_py = os.path.join(self.suite_dir, sub_dir)
if (os.path.realpath(self.suite_dir) !=
os.path.realpath(self.suite_run_dir) and
os.path.isdir(suite_py)):
suite_run_py = os.path.join(self.suite_run_dir, sub_dir)
try:
rmtree(suite_run_py)
except OSError:
pass
copytree(suite_py, suite_run_py)
self.profiler.log_memory("scheduler.py: before load_suiterc")
self.load_suiterc()
self.profiler.log_memory("scheduler.py: after load_suiterc")
self.suite_db_mgr.on_suite_start(self.is_restart)
reqmode = self.config.cfg['cylc']['required run mode']
if reqmode and not self.config.run_mode(reqmode):
raise ValueError('this suite requires the %s run mode' % reqmode)
self.broadcast_mgr.linearized_ancestors.update(
self.config.get_linearized_ancestors())
self.task_events_mgr.mail_interval = self.cylc_config[
"task event mail interval"]
self.task_events_mgr.mail_footer = self._get_events_conf("mail footer")
self.task_events_mgr.suite_url = self.config.cfg['meta']['URL']
self.task_events_mgr.suite_cfg = self.config.cfg['meta']
if self.options.genref:
LOG.addHandler(ReferenceLogFileHandler(
self.config.get_ref_log_name()))
elif self.options.reftest:
LOG.addHandler(ReferenceLogFileHandler(
get_suite_test_log_name(self.suite)))
log_extra = {TimestampRotatingFileHandler.FILE_HEADER_FLAG: True}
log_extra_num = {
TimestampRotatingFileHandler.FILE_HEADER_FLAG: True,
TimestampRotatingFileHandler.FILE_NUM: 1}
LOG.info(
self.START_MESSAGE_TMPL % {
'comms_method': 'tcp',
'host': self.host,
'port': self.port,
'pid': os.getpid()},
extra=log_extra,
)
LOG.info(
self.START_PUB_MESSAGE_TMPL % {
'comms_method': 'tcp',
'host': self.host,
'port': self.pub_port},
extra=log_extra,
)
LOG.info('Run: (re)start=%d log=%d', n_restart, 1, extra=log_extra_num)
LOG.info('Cylc version: %s', CYLC_VERSION, extra=log_extra)
# Note that the following lines must be present at the top of
# the suite log file for use in reference test runs:
LOG.info('Run mode: %s', self.config.run_mode(), extra=log_extra)
LOG.info(
'Initial point: %s', self.config.initial_point, extra=log_extra)
if self.config.start_point != self.config.initial_point:
LOG.info(
'Start point: %s', self.config.start_point, extra=log_extra)
LOG.info('Final point: %s', self.config.final_point, extra=log_extra)
self.pool = TaskPool(
self.config,
self.suite_db_mgr,
self.task_events_mgr,
self.job_pool)
self.profiler.log_memory("scheduler.py: before load_tasks")
if self.is_restart:
self.load_tasks_for_restart()
else:
self.load_tasks_for_run()
if self.options.stopcp:
self.pool.set_stop_point(get_point(self.options.stopcp))
self.profiler.log_memory("scheduler.py: after load_tasks")
self.suite_db_mgr.put_suite_params(self)
self.suite_db_mgr.put_suite_template_vars(self.template_vars)
self.suite_db_mgr.put_runtime_inheritance(self.config)
self.already_timed_out = False
self.set_suite_timer()
# Inactivity setting
self.already_inactive = False
key = self.EVENT_INACTIVITY_TIMEOUT
if self.options.reftest:
self.config.cfg['cylc']['events'][f'abort on {key}'] = True
if not self.config.cfg['cylc']['events'][key]:
self.config.cfg['cylc']['events'][key] = DurationFloat(180)
if self._get_events_conf(key):
self.set_suite_inactivity_timer()
# Main loop plugins
self.main_loop_plugins = main_loop.load(
# TODO: this doesn't work, we need to merge the two configs
self.cylc_config.get('main loop', {}),
self.options.main_loop
)
asyncio.get_event_loop().run_until_complete(
asyncio.gather(
*main_loop.get_runners(
self.main_loop_plugins,
main_loop.CoroTypes.StartUp,
self
)
)
)
self.profiler.log_memory("scheduler.py: end configure")
def load_tasks_for_run(self):
"""Load tasks for a new run."""
if self.config.start_point is not None:
if self.options.warm:
LOG.info('Warm Start %s' % self.config.start_point)
else:
LOG.info('Cold Start %s' % self.config.start_point)
task_list = self.filter_initial_task_list(
self.config.get_task_name_list())
for name in task_list:
if self.config.start_point is None:
# No start cycle point at which to load cycling tasks.
continue
try:
self.pool.add_to_runahead_pool(TaskProxy(
self.config.get_taskdef(name), self.config.start_point,
is_startup=True))
except TaskProxySequenceBoundsError as exc:
LOG.debug(str(exc))
continue
def load_tasks_for_restart(self):
"""Load tasks for restart."""
if self.options.startcp:
self.config.start_point = self.get_standardised_point(
self.options.startcp)
self.suite_db_mgr.pri_dao.select_broadcast_states(
self.broadcast_mgr.load_db_broadcast_states,
self.options.checkpoint)
self.suite_db_mgr.pri_dao.select_task_job_run_times(
self._load_task_run_times)
self.suite_db_mgr.pri_dao.select_task_pool_for_restart(
self.pool.load_db_task_pool_for_restart, self.options.checkpoint)
self.suite_db_mgr.pri_dao.select_job_pool_for_restart(
self.job_pool.insert_db_job, self.options.checkpoint)
self.suite_db_mgr.pri_dao.select_task_action_timers(
self.pool.load_db_task_action_timers)
self.suite_db_mgr.pri_dao.select_xtriggers_for_restart(
self.xtrigger_mgr.load_xtrigger_for_restart)
# Re-initialise run directory for user@host for each submitted and
# running tasks.
# Note: tasks should all be in the runahead pool at this point.
auths = set()
for itask in self.pool.get_rh_tasks():
if itask.state(*TASK_STATUSES_ACTIVE):
auths.add((itask.task_host, itask.task_owner))
while auths:
for host, owner in auths.copy():
if self.task_job_mgr.task_remote_mgr.remote_init(
host, owner) is not None:
auths.remove((host, owner))
if auths:
sleep(1.0)
# Remote init is done via process pool
self.proc_pool.process()
self.command_poll_tasks()
def _load_task_run_times(self, row_idx, row):
"""Load run times of previously succeeded task jobs."""
if row_idx == 0:
LOG.info("LOADING task run times")
name, run_times_str = row
try:
taskdef = self.config.taskdefs[name]
maxlen = TaskDef.MAX_LEN_ELAPSED_TIMES
for run_time_str in run_times_str.rsplit(",", maxlen)[-maxlen:]:
run_time = int(run_time_str)
taskdef.elapsed_times.append(run_time)
LOG.info("+ %s: %s" % (
name, ",".join(str(s) for s in taskdef.elapsed_times)))
except (KeyError, ValueError, AttributeError):
return
def process_queued_task_messages(self):
"""Handle incoming task messages for each task proxy."""
messages = {}
while self.message_queue.qsize():
try:
task_job, event_time, severity, message = (
self.message_queue.get(block=False))
except Empty:
break
self.message_queue.task_done()
cycle, task_name, submit_num = (
self.job_pool.parse_job_item(task_job))
task_id = TaskID.get(task_name, cycle)
messages.setdefault(task_id, [])
messages[task_id].append(
(submit_num, event_time, severity, message))
# Note on to_poll_tasks: If an incoming message is going to cause a
# reverse change to task state, it is desirable to confirm this by
# polling.
to_poll_tasks = []
for itask in self.pool.get_tasks():
message_items = messages.get(itask.identity)
if message_items is None:
continue
should_poll = False
for submit_num, event_time, severity, message in message_items:
if self.task_events_mgr.process_message(
itask, severity, message, event_time,
self.task_events_mgr.FLAG_RECEIVED, submit_num):
should_poll = True
if should_poll:
to_poll_tasks.append(itask)
self.task_job_mgr.poll_task_jobs(
self.suite, to_poll_tasks, poll_succ=True)
def process_command_queue(self):
"""Process queued commands."""
qsize = self.command_queue.qsize()
if qsize > 0:
log_msg = 'Processing ' + str(qsize) + ' queued command(s)'
else:
return
while True:
try:
name, args, kwargs = self.command_queue.get(False)
except Empty:
break
args_string = ', '.join(str(a) for a in args)
cmdstr = name + '(' + args_string
kwargs_string = ', '.join(
('%s=%s' % (key, value) for key, value in kwargs.items()))
if kwargs_string and args_string:
cmdstr += ', '
cmdstr += kwargs_string + ')'
log_msg += '\n+\t' + cmdstr
try:
n_warnings = getattr(self, "command_%s" % name)(
*args, **kwargs)
except SchedulerStop:
LOG.info('Command succeeded: ' + cmdstr)
raise
except Exception as exc:
# Don't let a bad command bring the suite down.
LOG.warning(traceback.format_exc())
LOG.warning(str(exc))
LOG.warning('Command failed: ' + cmdstr)
else:
if n_warnings:
LOG.info(
'Command succeeded with %s warning(s): %s' %
(n_warnings, cmdstr))
else:
LOG.info('Command succeeded: ' + cmdstr)
self.is_updated = True
if name in self.PROC_CMDS:
self.task_events_mgr.pflag = True
self.command_queue.task_done()
LOG.info(log_msg)
def _task_type_exists(self, name_or_id):
"""Does a task name or id match a known task type in this suite?"""
name = name_or_id
if TaskID.is_valid_id(name_or_id):
name = TaskID.split(name_or_id)[0]
return name in self.config.get_task_name_list()
@staticmethod
def get_standardised_point_string(point_string):
"""Return a standardised point string.
Used to process incoming command arguments.
"""
try:
point_string = standardise_point_string(point_string)
except PointParsingError as exc:
# (This is only needed to raise a clearer error message).
raise ValueError(
"Invalid cycle point: %s (%s)" % (point_string, exc))
return point_string
def get_standardised_point(self, point_string):
"""Return a standardised point."""
return get_point(self.get_standardised_point_string(point_string))
def get_standardised_taskid(self, task_id):
"""Return task ID with standardised cycle point."""
name, point_string = TaskID.split(task_id)
return TaskID.get(
name, self.get_standardised_point_string(point_string))
def info_get_task_jobfile_path(self, task_id):
"""Return task job file path."""
name, point = TaskID.split(task_id)
return get_task_job_log(
self.suite, point, name, suffix=JOB_LOG_JOB)
def info_get_suite_info(self):
"""Return a dict containing the suite title and description."""
return self.config.cfg['meta']
def info_get_suite_state_summary(self):
"""Return the global, task, and family summary data structures."""
return self.state_summary_mgr.get_state_summary()
def info_get_task_info(self, names):
"""Return info of a task."""
results = {}
for name in names:
try:
results[name] = self.config.describe(name)
except KeyError:
results[name] = {}
return results
def info_get_graph_raw(self, cto, ctn, group_nodes=None,
ungroup_nodes=None,
ungroup_recursive=False, group_all=False,
ungroup_all=False):
"""Return raw graph."""
return (
self.config.get_graph_raw(
cto, ctn, group_nodes, ungroup_nodes, ungroup_recursive,
group_all, ungroup_all),
self.config.suite_polling_tasks,
self.config.leaves,
self.config.feet)
def info_get_task_requisites(self, items, list_prereqs=False):
"""Return prerequisites and outputs etc. of a task.
Result in a dict of a dict:
{
"task_id": {
"meta": {key: value, ...},
"prerequisites": {key: value, ...},
"outputs": {key: value, ...},
"extras": {key: value, ...},
},
...
}
"""
itasks, bad_items = self.pool.filter_task_proxies(items)
results = {}
now = time()
for itask in itasks:
if list_prereqs:
results[itask.identity] = {
'prerequisites': itask.state.prerequisites_dump(
list_prereqs=True)}
continue
extras = {}
if itask.tdef.clocktrigger_offset is not None:
extras['Clock trigger time reached'] = (
itask.is_waiting_clock_done(now))
extras['Triggers at'] = time2str(
itask.clock_trigger_time)
for trig, satisfied in itask.state.external_triggers.items():
key = f'External trigger "{trig}"'
if satisfied:
extras[key] = 'satisfied'
else:
extras[key] = 'NOT satisfied'
for label, satisfied in itask.state.xtriggers.items():
sig = self.xtrigger_mgr.get_xtrig_ctx(
itask, label).get_signature()
extra = f'xtrigger "{label} = {sig}"'
if satisfied:
extras[extra] = 'satisfied'
else:
extras[extra] = 'NOT satisfied'
outputs = []
for _, msg, is_completed in itask.state.outputs.get_all():
outputs.append(
[f"{itask.identity} {msg}", is_completed])
results[itask.identity] = {
"meta": itask.tdef.describe(),
"prerequisites": itask.state.prerequisites_dump(),
"outputs": outputs,
"extras": extras}
return results, bad_items
def info_ping_task(self, task_id, exists_only=False):
"""Return True if task exists and running."""
task_id = self.get_standardised_taskid(task_id)
return self.pool.ping_task(task_id, exists_only)
def command_stop(
self,
mode=None,
cycle_point=None,
# NOTE clock_time YYYY/MM/DD-HH:mm back-compat removed
clock_time=None,
task=None
):
# immediate shutdown
if mode:
self._set_stop(mode)
elif not any([mode, cycle_point, clock_time, task]):
# if no arguments provided do a standard clean shutdown
self._set_stop(StopMode.REQUEST_CLEAN)
# schedule shutdown after tasks pass provided cycle point
if cycle_point:
point = self.get_standardised_point(cycle_point)
if self.pool.set_stop_point(point):
self.options.stopcp = str(point)
self.suite_db_mgr.put_suite_stop_cycle_point(
self.options.stopcp)
else:
# TODO: yield warning
pass
# schedule shutdown after wallclock time passes provided time
if clock_time:
parser = TimePointParser()
clock_time = parser.parse(clock_time)
self.set_stop_clock(
int(clock_time.get("seconds_since_unix_epoch")))
# schedule shutdown after task succeeds
if task:
task_id = self.get_standardised_taskid(task)
if TaskID.is_valid_id(task_id):
self.set_stop_task(task_id)
else:
# TODO: yield warning
pass
def command_set_stop_cleanly(self, kill_active_tasks=False):
"""Stop job submission and set the flag for clean shutdown."""
# TODO: deprecated by command_stop()
self._set_stop()
if kill_active_tasks:
self.time_next_kill = time()
def command_stop_now(self, terminate=False):
"""Shutdown immediately."""
# TODO: deprecated by command_stop()
if terminate:
self._set_stop(StopMode.REQUEST_NOW_NOW)
else:
self._set_stop(StopMode.REQUEST_NOW)
def _set_stop(self, stop_mode=None):
"""Set shutdown mode."""
self.proc_pool.set_stopping()
if stop_mode is None:
stop_mode = StopMode.REQUEST_CLEAN
self.stop_mode = stop_mode
def command_set_stop_after_point(self, point_string):
"""Set stop after ... point."""
# TODO: deprecated by command_stop()
stop_point = self.get_standardised_point(point_string)
if self.pool.set_stop_point(stop_point):
self.options.stopcp = str(stop_point)
self.suite_db_mgr.put_suite_stop_cycle_point(self.options.stopcp)
def command_set_stop_after_clock_time(self, arg):
"""Set stop after clock time.
format: ISO 8601 compatible or YYYY/MM/DD-HH:mm (backwards comp.)
"""
# TODO: deprecate
parser = TimePointParser()
try:
stop_time = parser.parse(arg)
except ValueError as exc:
try:
stop_time = parser.strptime(arg, "%Y/%m/%d-%H:%M")
except ValueError:
raise exc # Raise the first (prob. more relevant) ValueError.
self.set_stop_clock(int(stop_time.get("seconds_since_unix_epoch")))
def command_set_stop_after_task(self, task_id):
"""Set stop after a task."""
# TODO: deprecate
task_id = self.get_standardised_taskid(task_id)
if TaskID.is_valid_id(task_id):
self.set_stop_task(task_id)
def command_release(self, ids=None):
if ids:
return self.pool.release_tasks(ids)
self.release_suite()
def command_release_tasks(self, items):
"""Release tasks."""
# TODO: deprecated by command_release()
return self.pool.release_tasks(items)
def command_poll_tasks(self, items=None, poll_succ=False):
"""Poll pollable tasks or a task/family if options are provided.
Don't poll succeeded tasks unless poll_succ is True.
"""
if self.config.run_mode('simulation'):
return
itasks, bad_items = self.pool.filter_task_proxies(items)
self.task_job_mgr.poll_task_jobs(self.suite, itasks,
poll_succ=poll_succ)
return len(bad_items)
def command_kill_tasks(self, items=None):
"""Kill all tasks or a task/family if options are provided."""
itasks, bad_items = self.pool.filter_task_proxies(items)
if self.config.run_mode('simulation'):
for itask in itasks:
if itask.state(*TASK_STATUSES_ACTIVE):
itask.state.reset(TASK_STATUS_FAILED)
return len(bad_items)
self.task_job_mgr.kill_task_jobs(self.suite, itasks)
return len(bad_items)
def command_release_suite(self):
"""Release all task proxies in the suite."""
# TODO: deprecated by command_release()
self.release_suite()
def command_hold(self, tasks=None, time=None):
if tasks:
self.pool.hold_tasks(tasks)
if time:
point = self.get_standardised_point(time)
self.hold_suite(point)
LOG.info(
'The suite will pause when all tasks have passed %s', point)
if not (tasks or time):
self.hold_suite()
def command_hold_tasks(self, items):
"""Hold selected task proxies in the suite."""