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Merge branch 'threaded_receiver' into devel

This commit is contained in:
James Cammarata 2016-09-20 09:18:26 -05:00
commit 1b54d3b6dc
7 changed files with 461 additions and 389 deletions

View file

@ -55,12 +55,12 @@ class WorkerProcess(multiprocessing.Process):
for reading later.
'''
def __init__(self, rslt_q, play, host, task, task_vars, play_context, loader, variable_manager, shared_loader_obj):
def __init__(self, rslt_q, task_vars, host, task, play_context, loader, variable_manager, shared_loader_obj):
super(WorkerProcess, self).__init__()
# takes a task queue manager as the sole param:
self._rslt_q = rslt_q
self._play = play
self._task_vars = task_vars
self._host = host
self._task = task
self._play_context = play_context
@ -68,8 +68,6 @@ class WorkerProcess(multiprocessing.Process):
self._variable_manager = variable_manager
self._shared_loader_obj = shared_loader_obj
self._task_vars = task_vars
# dupe stdin, if we have one
self._new_stdin = sys.stdin
try:
@ -151,4 +149,3 @@ class WorkerProcess(multiprocessing.Process):
#with open('worker_%06d.stats' % os.getpid(), 'w') as f:
# f.write(s.getvalue())
sys.exit(0)

View file

@ -22,22 +22,16 @@ __metaclass__ = type
import multiprocessing
import os
import tempfile
import threading
import time
from collections import deque
from ansible import constants as C
from ansible.compat.six import string_types
from ansible.errors import AnsibleError
from ansible.executor import action_write_locks
from ansible.executor.play_iterator import PlayIterator
from ansible.executor.process.worker import WorkerProcess
from ansible.executor.stats import AggregateStats
from ansible.module_utils._text import to_text
from ansible.playbook.block import Block
from ansible.playbook.play_context import PlayContext
from ansible.plugins import action_loader, callback_loader, connection_loader, filter_loader, lookup_loader, module_loader, strategy_loader, test_loader
from ansible.plugins import callback_loader, strategy_loader, module_loader
from ansible.plugins.callback import CallbackBase
from ansible.template import Templar
from ansible.utils.helpers import pct_to_int
@ -52,23 +46,6 @@ except ImportError:
__all__ = ['TaskQueueManager']
# TODO: this should probably be in the plugins/__init__.py, with
# a smarter mechanism to set all of the attributes based on
# the loaders created there
class SharedPluginLoaderObj:
'''
A simple object to make pass the various plugin loaders to
the forked processes over the queue easier
'''
def __init__(self):
self.action_loader = action_loader
self.connection_loader = connection_loader
self.filter_loader = filter_loader
self.test_loader = test_loader
self.lookup_loader = lookup_loader
self.module_loader = module_loader
class TaskQueueManager:
'''
@ -100,8 +77,6 @@ class TaskQueueManager:
self._run_additional_callbacks = run_additional_callbacks
self._run_tree = run_tree
self._iterator = None
self._callbacks_loaded = False
self._callback_plugins = []
self._start_at_done = False
@ -123,86 +98,12 @@ class TaskQueueManager:
self._failed_hosts = dict()
self._unreachable_hosts = dict()
# the "queue" for the background thread to use
self._queued_tasks = deque()
self._queued_tasks_lock = threading.Lock()
# the background queuing thread
self._queue_thread = None
self._workers = []
self._final_q = multiprocessing.Queue()
# A temporary file (opened pre-fork) used by connection
# plugins for inter-process locking.
self._connection_lockfile = tempfile.TemporaryFile()
def _queue_thread_main(self):
# create a dummy object with plugin loaders set as an easier
# way to share them with the forked processes
shared_loader_obj = SharedPluginLoaderObj()
display.debug("queuing thread starting")
while not self._terminated:
available_workers = []
for idx, entry in enumerate(self._workers):
(worker_prc, _) = entry
if worker_prc is None or not worker_prc.is_alive():
available_workers.append(idx)
if len(available_workers) == 0:
time.sleep(0.01)
continue
for worker_idx in available_workers:
try:
self._queued_tasks_lock.acquire()
(host, task, task_vars, play_context) = self._queued_tasks.pop()
except IndexError:
break
finally:
self._queued_tasks_lock.release()
if task.action not in action_write_locks.action_write_locks:
display.debug('Creating lock for %s' % task.action)
action_write_locks.action_write_locks[task.action] = multiprocessing.Lock()
try:
worker_prc = WorkerProcess(
self._final_q,
self._iterator._play,
host,
task,
task_vars,
play_context,
self._loader,
self._variable_manager,
shared_loader_obj,
)
self._workers[worker_idx][0] = worker_prc
worker_prc.start()
display.debug("worker is %d (out of %d available)" % (worker_idx+1, len(self._workers)))
except (EOFError, IOError, AssertionError) as e:
# most likely an abort
display.debug("got an error while queuing: %s" % e)
break
display.debug("queuing thread exiting")
def queue_task(self, host, task, task_vars, play_context):
self._queued_tasks_lock.acquire()
self._queued_tasks.append((host, task, task_vars, play_context))
self._queued_tasks_lock.release()
def queue_multiple_tasks(self, items, play_context):
for item in items:
(host, task, task_vars) = item
self._queued_tasks_lock.acquire()
self._queued_tasks.append((host, task, task_vars, play_context))
self._queued_tasks_lock.release()
def _initialize_processes(self, num):
self._workers = []
@ -307,10 +208,6 @@ class TaskQueueManager:
if not self._callbacks_loaded:
self.load_callbacks()
if self._queue_thread is None:
self._queue_thread = threading.Thread(target=self._queue_thread_main)
self._queue_thread.start()
all_vars = self._variable_manager.get_vars(loader=self._loader, play=play)
templar = Templar(loader=self._loader, variables=all_vars)
@ -356,7 +253,7 @@ class TaskQueueManager:
raise AnsibleError("Invalid play strategy specified: %s" % new_play.strategy, obj=play._ds)
# build the iterator
self._iterator = PlayIterator(
iterator = PlayIterator(
inventory=self._inventory,
play=new_play,
play_context=play_context,
@ -371,7 +268,7 @@ class TaskQueueManager:
# hosts so we know what failed this round.
for host_name in self._failed_hosts.keys():
host = self._inventory.get_host(host_name)
self._iterator.mark_host_failed(host)
iterator.mark_host_failed(host)
self.clear_failed_hosts()
@ -382,12 +279,13 @@ class TaskQueueManager:
self._start_at_done = True
# and run the play using the strategy and cleanup on way out
play_return = strategy.run(self._iterator, play_context)
play_return = strategy.run(iterator, play_context)
# now re-save the hosts that failed from the iterator to our internal list
for host_name in self._iterator.get_failed_hosts():
for host_name in iterator.get_failed_hosts():
self._failed_hosts[host_name] = True
strategy.cleanup()
self._cleanup_processes()
return play_return
@ -398,13 +296,14 @@ class TaskQueueManager:
self._cleanup_processes()
def _cleanup_processes(self):
for (worker_prc, rslt_q) in self._workers:
rslt_q.close()
if worker_prc and worker_prc.is_alive():
try:
worker_prc.terminate()
except AttributeError:
pass
if hasattr(self, '_workers'):
for (worker_prc, rslt_q) in self._workers:
rslt_q.close()
if worker_prc and worker_prc.is_alive():
try:
worker_prc.terminate()
except AttributeError:
pass
def clear_failed_hosts(self):
self._failed_hosts = dict()

View file

@ -25,6 +25,7 @@ from ansible.compat.six import text_type
from ansible.errors import AnsibleError, AnsibleUndefinedVariable
from ansible.playbook.attribute import FieldAttribute
from ansible.template import Templar
from ansible.module_utils._text import to_native
class Conditional:
@ -72,7 +73,7 @@ class Conditional:
if not self._check_conditional(conditional, templar, all_vars):
return False
except Exception as e:
raise AnsibleError("The conditional check '%s' failed. The error was: %s" % (conditional, e), obj=ds)
raise AnsibleError("The conditional check '%s' failed. The error was: %s" % (to_native(conditional), to_native(e)), obj=ds)
return True

View file

@ -19,19 +19,28 @@
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import threading
import time
from collections import deque
from multiprocessing import Lock
from jinja2.exceptions import UndefinedError
from ansible.compat.six.moves import queue as Queue
from ansible.compat.six import iteritems, string_types
from ansible.errors import AnsibleError, AnsibleParserError, AnsibleUndefinedVariable
from ansible.executor import action_write_locks
from ansible.executor.process.worker import WorkerProcess
from ansible.executor.task_result import TaskResult
from ansible.inventory.host import Host
from ansible.inventory.group import Group
from ansible.module_utils.facts import Facts
from ansible.playbook.helpers import load_list_of_blocks
from ansible.playbook.included_file import IncludedFile
from ansible.playbook.task_include import TaskInclude
from ansible.playbook.role_include import IncludeRole
from ansible.plugins import action_loader
from ansible.plugins import action_loader, connection_loader, filter_loader, lookup_loader, module_loader, test_loader
from ansible.template import Templar
from ansible.vars import combine_vars, strip_internal_keys
from ansible.module_utils._text import to_text
@ -45,6 +54,41 @@ except ImportError:
__all__ = ['StrategyBase']
# TODO: this should probably be in the plugins/__init__.py, with
# a smarter mechanism to set all of the attributes based on
# the loaders created there
class SharedPluginLoaderObj:
'''
A simple object to make pass the various plugin loaders to
the forked processes over the queue easier
'''
def __init__(self):
self.action_loader = action_loader
self.connection_loader = connection_loader
self.filter_loader = filter_loader
self.test_loader = test_loader
self.lookup_loader = lookup_loader
self.module_loader = module_loader
_sentinel = object()
def results_thread_main(strategy):
#print("RESULT THREAD STARTING: %s" % threading.current_thread())
while True:
try:
result = strategy._final_q.get()
if type(result) == object:
break
else:
#print("result in thread is: %s" % result._result)
strategy._results_lock.acquire()
strategy._results.append(result)
strategy._results_lock.release()
except (IOError, EOFError):
break
except Queue.Empty:
pass
#print("RESULT THREAD EXITED: %s" % threading.current_thread())
class StrategyBase:
@ -56,6 +100,7 @@ class StrategyBase:
def __init__(self, tqm):
self._tqm = tqm
self._inventory = tqm.get_inventory()
self._workers = tqm.get_workers()
self._notified_handlers = tqm._notified_handlers
self._listening_handlers = tqm._listening_handlers
self._variable_manager = tqm.get_variable_manager()
@ -63,16 +108,30 @@ class StrategyBase:
self._final_q = tqm._final_q
self._step = getattr(tqm._options, 'step', False)
self._diff = getattr(tqm._options, 'diff', False)
# Backwards compat: self._display isn't really needed, just import the global display and use that.
self._display = display
# internal counters
self._pending_results = 0
self._cur_worker = 0
# this dictionary is used to keep track of hosts that have
# outstanding tasks still in queue
self._blocked_hosts = dict()
self._results = deque()
self._results_lock = threading.Condition(threading.Lock())
#print("creating thread for strategy %s" % id(self))
self._results_thread = threading.Thread(target=results_thread_main, args=(self,))
self._results_thread.daemon = True
self._results_thread.start()
def cleanup(self):
self._final_q.put(_sentinel)
self._results_thread.join()
def run(self, iterator, play_context, result=0):
# save the failed/unreachable hosts, as the run_handlers()
# method will clear that information during its execution
@ -118,10 +177,57 @@ class StrategyBase:
def _queue_task(self, host, task, task_vars, play_context):
''' handles queueing the task up to be sent to a worker '''
self._tqm.queue_task(host, task, task_vars, play_context)
self._pending_results += 1
def _process_pending_results(self, iterator, one_pass=False, timeout=0.001):
display.debug("entering _queue_task() for %s/%s" % (host.name, task.action))
# Add a write lock for tasks.
# Maybe this should be added somewhere further up the call stack but
# this is the earliest in the code where we have task (1) extracted
# into its own variable and (2) there's only a single code path
# leading to the module being run. This is called by three
# functions: __init__.py::_do_handler_run(), linear.py::run(), and
# free.py::run() so we'd have to add to all three to do it there.
# The next common higher level is __init__.py::run() and that has
# tasks inside of play_iterator so we'd have to extract them to do it
# there.
if task.action not in action_write_locks.action_write_locks:
display.debug('Creating lock for %s' % task.action)
action_write_locks.action_write_locks[task.action] = Lock()
# and then queue the new task
try:
# create a dummy object with plugin loaders set as an easier
# way to share them with the forked processes
shared_loader_obj = SharedPluginLoaderObj()
queued = False
starting_worker = self._cur_worker
while True:
(worker_prc, rslt_q) = self._workers[self._cur_worker]
if worker_prc is None or not worker_prc.is_alive():
worker_prc = WorkerProcess(self._final_q, task_vars, host, task, play_context, self._loader, self._variable_manager, shared_loader_obj)
self._workers[self._cur_worker][0] = worker_prc
worker_prc.start()
display.debug("worker is %d (out of %d available)" % (self._cur_worker+1, len(self._workers)))
queued = True
self._cur_worker += 1
if self._cur_worker >= len(self._workers):
self._cur_worker = 0
if queued:
break
elif self._cur_worker == starting_worker:
time.sleep(0.0001)
self._pending_results += 1
except (EOFError, IOError, AssertionError) as e:
# most likely an abort
display.debug("got an error while queuing: %s" % e)
return
display.debug("exiting _queue_task() for %s/%s" % (host.name, task.action))
def _process_pending_results(self, iterator, one_pass=False, max_passes=None):
'''
Reads results off the final queue and takes appropriate action
based on the result (executing callbacks, updating state, etc.).
@ -180,226 +286,232 @@ class StrategyBase:
else:
return False
passes = 1
while not self._tqm._terminated and passes < 3:
cur_pass = 0
while True:
try:
task_result = self._final_q.get(timeout=timeout)
original_host = get_original_host(task_result._host)
original_task = iterator.get_original_task(original_host, task_result._task)
task_result._host = original_host
task_result._task = original_task
self._results_lock.acquire()
task_result = self._results.pop()
except IndexError:
break
finally:
self._results_lock.release()
# send callbacks for 'non final' results
if '_ansible_retry' in task_result._result:
self._tqm.send_callback('v2_runner_retry', task_result)
continue
elif '_ansible_item_result' in task_result._result:
if task_result.is_failed() or task_result.is_unreachable():
self._tqm.send_callback('v2_runner_item_on_failed', task_result)
elif task_result.is_skipped():
self._tqm.send_callback('v2_runner_item_on_skipped', task_result)
else:
if 'diff' in task_result._result:
if self._diff:
self._tqm.send_callback('v2_on_file_diff', task_result)
self._tqm.send_callback('v2_runner_item_on_ok', task_result)
continue
original_host = get_original_host(task_result._host)
original_task = iterator.get_original_task(original_host, task_result._task)
task_result._host = original_host
task_result._task = original_task
if original_task.register:
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [original_host]
clean_copy = strip_internal_keys(task_result._result)
if 'invocation' in clean_copy:
del clean_copy['invocation']
for target_host in host_list:
self._variable_manager.set_nonpersistent_facts(target_host, {original_task.register: clean_copy})
# all host status messages contain 2 entries: (msg, task_result)
role_ran = False
if task_result.is_failed():
role_ran = True
if not original_task.ignore_errors:
display.debug("marking %s as failed" % original_host.name)
if original_task.run_once:
# if we're using run_once, we have to fail every host here
for h in self._inventory.get_hosts(iterator._play.hosts):
if h.name not in self._tqm._unreachable_hosts:
state, _ = iterator.get_next_task_for_host(h, peek=True)
iterator.mark_host_failed(h)
state, new_task = iterator.get_next_task_for_host(h, peek=True)
else:
iterator.mark_host_failed(original_host)
# only add the host to the failed list officially if it has
# been failed by the iterator
if iterator.is_failed(original_host):
self._tqm._failed_hosts[original_host.name] = True
self._tqm._stats.increment('failures', original_host.name)
else:
# otherwise, we grab the current state and if we're iterating on
# the rescue portion of a block then we save the failed task in a
# special var for use within the rescue/always
state, _ = iterator.get_next_task_for_host(original_host, peek=True)
if state.run_state == iterator.ITERATING_RESCUE:
self._variable_manager.set_nonpersistent_facts(
original_host,
dict(
ansible_failed_task=original_task.serialize(),
ansible_failed_result=task_result._result,
),
)
else:
self._tqm._stats.increment('ok', original_host.name)
self._tqm.send_callback('v2_runner_on_failed', task_result, ignore_errors=original_task.ignore_errors)
elif task_result.is_unreachable():
self._tqm._unreachable_hosts[original_host.name] = True
self._tqm._stats.increment('dark', original_host.name)
self._tqm.send_callback('v2_runner_on_unreachable', task_result)
# send callbacks for 'non final' results
if '_ansible_retry' in task_result._result:
self._tqm.send_callback('v2_runner_retry', task_result)
continue
elif '_ansible_item_result' in task_result._result:
if task_result.is_failed() or task_result.is_unreachable():
self._tqm.send_callback('v2_runner_item_on_failed', task_result)
elif task_result.is_skipped():
self._tqm._stats.increment('skipped', original_host.name)
self._tqm.send_callback('v2_runner_on_skipped', task_result)
self._tqm.send_callback('v2_runner_item_on_skipped', task_result)
else:
role_ran = True
if original_task.loop:
# this task had a loop, and has more than one result, so
# loop over all of them instead of a single result
result_items = task_result._result.get('results', [])
else:
result_items = [ task_result._result ]
for result_item in result_items:
if '_ansible_notify' in result_item:
if task_result.is_changed():
# The shared dictionary for notified handlers is a proxy, which
# does not detect when sub-objects within the proxy are modified.
# So, per the docs, we reassign the list so the proxy picks up and
# notifies all other threads
for handler_name in result_item['_ansible_notify']:
# Find the handler using the above helper. First we look up the
# dependency chain of the current task (if it's from a role), otherwise
# we just look through the list of handlers in the current play/all
# roles and use the first one that matches the notify name
if handler_name in self._listening_handlers:
for listening_handler_name in self._listening_handlers[handler_name]:
listening_handler = search_handler_blocks(listening_handler_name, iterator._play.handlers)
if listening_handler is None:
raise AnsibleError("The requested handler listener '%s' was not found in any of the known handlers" % listening_handler_name)
if original_host not in self._notified_handlers[listening_handler]:
self._notified_handlers[listening_handler].append(original_host)
display.vv("NOTIFIED HANDLER %s" % (listening_handler_name,))
else:
target_handler = search_handler_blocks(handler_name, iterator._play.handlers)
if target_handler is not None:
if original_host not in self._notified_handlers[target_handler]:
self._notified_handlers[target_handler].append(original_host)
# FIXME: should this be a callback?
display.vv("NOTIFIED HANDLER %s" % (handler_name,))
else:
# As there may be more than one handler with the notified name as the
# parent, so we just keep track of whether or not we found one at all
found = False
for target_handler in self._notified_handlers:
if parent_handler_match(target_handler, handler_name):
self._notified_handlers[target_handler].append(original_host)
display.vv("NOTIFIED HANDLER %s" % (target_handler.get_name(),))
found = True
# and if none were found, then we raise an error
if not found:
raise AnsibleError("The requested handler '%s' was found in neither the main handlers list nor the listening handlers list" % handler_name)
if 'add_host' in result_item:
# this task added a new host (add_host module)
new_host_info = result_item.get('add_host', dict())
self._add_host(new_host_info, iterator)
elif 'add_group' in result_item:
# this task added a new group (group_by module)
self._add_group(original_host, result_item)
elif 'ansible_facts' in result_item:
loop_var = 'item'
if original_task.loop_control:
loop_var = original_task.loop_control.loop_var or 'item'
item = result_item.get(loop_var, None)
if original_task.action == 'include_vars':
for (var_name, var_value) in iteritems(result_item['ansible_facts']):
# find the host we're actually refering too here, which may
# be a host that is not really in inventory at all
if original_task.delegate_to is not None and original_task.delegate_facts:
task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=original_task)
self.add_tqm_variables(task_vars, play=iterator._play)
if item is not None:
task_vars[loop_var] = item
templar = Templar(loader=self._loader, variables=task_vars)
host_name = templar.template(original_task.delegate_to)
actual_host = self._inventory.get_host(host_name)
if actual_host is None:
actual_host = Host(name=host_name)
else:
actual_host = original_host
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [actual_host]
for target_host in host_list:
self._variable_manager.set_host_variable(target_host, var_name, var_value)
else:
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [original_host]
for target_host in host_list:
if original_task.action == 'set_fact':
self._variable_manager.set_nonpersistent_facts(target_host, result_item['ansible_facts'].copy())
else:
self._variable_manager.set_host_facts(target_host, result_item['ansible_facts'].copy())
if 'diff' in task_result._result:
if self._diff:
self._tqm.send_callback('v2_on_file_diff', task_result)
self._tqm.send_callback('v2_runner_item_on_ok', task_result)
continue
if original_task.action not in ['include', 'include_role']:
self._tqm._stats.increment('ok', original_host.name)
if 'changed' in task_result._result and task_result._result['changed']:
self._tqm._stats.increment('changed', original_host.name)
if original_task.register:
#print("^ REGISTERING RESULT %s" % original_task.register)
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [original_host]
# finally, send the ok for this task
self._tqm.send_callback('v2_runner_on_ok', task_result)
clean_copy = strip_internal_keys(task_result._result)
if 'invocation' in clean_copy:
del clean_copy['invocation']
self._pending_results -= 1
if original_host.name in self._blocked_hosts:
del self._blocked_hosts[original_host.name]
for target_host in host_list:
self._variable_manager.set_nonpersistent_facts(target_host, {original_task.register: clean_copy})
# If this is a role task, mark the parent role as being run (if
# the task was ok or failed, but not skipped or unreachable)
if original_task._role is not None and role_ran: #TODO: and original_task.action != 'include_role':?
# lookup the role in the ROLE_CACHE to make sure we're dealing
# with the correct object and mark it as executed
for (entry, role_obj) in iteritems(iterator._play.ROLE_CACHE[original_task._role._role_name]):
if role_obj._uuid == original_task._role._uuid:
role_obj._had_task_run[original_host.name] = True
# all host status messages contain 2 entries: (msg, task_result)
role_ran = False
if task_result.is_failed():
role_ran = True
if not original_task.ignore_errors:
display.debug("marking %s as failed" % original_host.name)
if original_task.run_once:
# if we're using run_once, we have to fail every host here
for h in self._inventory.get_hosts(iterator._play.hosts):
if h.name not in self._tqm._unreachable_hosts:
state, _ = iterator.get_next_task_for_host(h, peek=True)
iterator.mark_host_failed(h)
state, new_task = iterator.get_next_task_for_host(h, peek=True)
else:
iterator.mark_host_failed(original_host)
ret_results.append(task_result)
# only add the host to the failed list officially if it has
# been failed by the iterator
if iterator.is_failed(original_host):
self._tqm._failed_hosts[original_host.name] = True
self._tqm._stats.increment('failures', original_host.name)
else:
# otherwise, we grab the current state and if we're iterating on
# the rescue portion of a block then we save the failed task in a
# special var for use within the rescue/always
state, _ = iterator.get_next_task_for_host(original_host, peek=True)
if state.run_state == iterator.ITERATING_RESCUE:
self._variable_manager.set_nonpersistent_facts(
original_host,
dict(
ansible_failed_task=original_task.serialize(),
ansible_failed_result=task_result._result,
),
)
else:
self._tqm._stats.increment('ok', original_host.name)
self._tqm.send_callback('v2_runner_on_failed', task_result, ignore_errors=original_task.ignore_errors)
elif task_result.is_unreachable():
self._tqm._unreachable_hosts[original_host.name] = True
self._tqm._stats.increment('dark', original_host.name)
self._tqm.send_callback('v2_runner_on_unreachable', task_result)
elif task_result.is_skipped():
self._tqm._stats.increment('skipped', original_host.name)
self._tqm.send_callback('v2_runner_on_skipped', task_result)
else:
role_ran = True
except Queue.Empty:
passes += 1
if original_task.loop:
# this task had a loop, and has more than one result, so
# loop over all of them instead of a single result
result_items = task_result._result.get('results', [])
else:
result_items = [ task_result._result ]
if one_pass:
for result_item in result_items:
if '_ansible_notify' in result_item:
if task_result.is_changed():
# The shared dictionary for notified handlers is a proxy, which
# does not detect when sub-objects within the proxy are modified.
# So, per the docs, we reassign the list so the proxy picks up and
# notifies all other threads
for handler_name in result_item['_ansible_notify']:
# Find the handler using the above helper. First we look up the
# dependency chain of the current task (if it's from a role), otherwise
# we just look through the list of handlers in the current play/all
# roles and use the first one that matches the notify name
if handler_name in self._listening_handlers:
for listening_handler_name in self._listening_handlers[handler_name]:
listening_handler = search_handler_blocks(listening_handler_name, iterator._play.handlers)
if listening_handler is None:
raise AnsibleError("The requested handler listener '%s' was not found in any of the known handlers" % listening_handler_name)
if original_host not in self._notified_handlers[listening_handler]:
self._notified_handlers[listening_handler].append(original_host)
display.vv("NOTIFIED HANDLER %s" % (listening_handler_name,))
else:
target_handler = search_handler_blocks(handler_name, iterator._play.handlers)
if target_handler is not None:
if original_host not in self._notified_handlers[target_handler]:
self._notified_handlers[target_handler].append(original_host)
# FIXME: should this be a callback?
display.vv("NOTIFIED HANDLER %s" % (handler_name,))
else:
# As there may be more than one handler with the notified name as the
# parent, so we just keep track of whether or not we found one at all
found = False
for target_handler in self._notified_handlers:
if parent_handler_match(target_handler, handler_name):
self._notified_handlers[target_handler].append(original_host)
display.vv("NOTIFIED HANDLER %s" % (target_handler.get_name(),))
found = True
# and if none were found, then we raise an error
if not found:
raise AnsibleError("The requested handler '%s' was found in neither the main handlers list nor the listening handlers list" % handler_name)
if 'add_host' in result_item:
# this task added a new host (add_host module)
new_host_info = result_item.get('add_host', dict())
self._add_host(new_host_info, iterator)
elif 'add_group' in result_item:
# this task added a new group (group_by module)
self._add_group(original_host, result_item)
elif 'ansible_facts' in result_item:
loop_var = 'item'
if original_task.loop_control:
loop_var = original_task.loop_control.loop_var or 'item'
item = result_item.get(loop_var, None)
if original_task.action == 'include_vars':
for (var_name, var_value) in iteritems(result_item['ansible_facts']):
# find the host we're actually refering too here, which may
# be a host that is not really in inventory at all
if original_task.delegate_to is not None and original_task.delegate_facts:
task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=original_task)
self.add_tqm_variables(task_vars, play=iterator._play)
if item is not None:
task_vars[loop_var] = item
templar = Templar(loader=self._loader, variables=task_vars)
host_name = templar.template(original_task.delegate_to)
actual_host = self._inventory.get_host(host_name)
if actual_host is None:
actual_host = Host(name=host_name)
else:
actual_host = original_host
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [actual_host]
for target_host in host_list:
self._variable_manager.set_host_variable(target_host, var_name, var_value)
else:
if original_task.run_once:
host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
else:
host_list = [original_host]
for target_host in host_list:
if original_task.action == 'set_fact':
self._variable_manager.set_nonpersistent_facts(target_host, result_item['ansible_facts'].copy())
else:
self._variable_manager.set_host_facts(target_host, result_item['ansible_facts'].copy())
if 'diff' in task_result._result:
if self._diff:
self._tqm.send_callback('v2_on_file_diff', task_result)
if original_task.action not in ['include', 'include_role']:
self._tqm._stats.increment('ok', original_host.name)
if 'changed' in task_result._result and task_result._result['changed']:
self._tqm._stats.increment('changed', original_host.name)
# finally, send the ok for this task
self._tqm.send_callback('v2_runner_on_ok', task_result)
self._pending_results -= 1
if original_host.name in self._blocked_hosts:
del self._blocked_hosts[original_host.name]
# If this is a role task, mark the parent role as being run (if
# the task was ok or failed, but not skipped or unreachable)
if original_task._role is not None and role_ran: #TODO: and original_task.action != 'include_role':?
# lookup the role in the ROLE_CACHE to make sure we're dealing
# with the correct object and mark it as executed
for (entry, role_obj) in iteritems(iterator._play.ROLE_CACHE[original_task._role._role_name]):
if role_obj._uuid == original_task._role._uuid:
role_obj._had_task_run[original_host.name] = True
ret_results.append(task_result)
if one_pass or max_passes is not None and (cur_pass+1) >= max_passes:
break
cur_pass += 1
return ret_results
def _wait_on_pending_results(self, iterator):
@ -411,18 +523,14 @@ class StrategyBase:
ret_results = []
display.debug("waiting for pending results...")
dead_check = 10
while self._pending_results > 0 and not self._tqm._terminated:
if self._tqm.has_dead_workers():
raise AnsibleError("A worker was found in a dead state")
results = self._process_pending_results(iterator)
ret_results.extend(results)
dead_check -= 1
if dead_check == 0:
if self._pending_results > 0 and self._tqm.has_dead_workers():
raise AnsibleError("A worker was found in a dead state")
dead_check = 10
display.debug("no more pending results, returning what we have")
return ret_results

View file

@ -182,9 +182,7 @@ class StrategyModule(StrategyBase):
any_errors_fatal = False
results = []
items_to_queue = []
for (host, task) in host_tasks:
if not task:
continue
@ -259,27 +257,22 @@ class StrategyModule(StrategyBase):
display.debug("sending task start callback")
self._blocked_hosts[host.get_name()] = True
items_to_queue.append((host, task, task_vars))
self._pending_results += 1
self._queue_task(host, task, task_vars, play_context)
del task_vars
# if we're bypassing the host loop, break out now
if run_once:
break
# FIXME: probably not required here any more with the result proc
# having been removed, so there's no only a single result
# queue for the main thread
results += self._process_pending_results(iterator, one_pass=True)
self._tqm.queue_multiple_tasks(items_to_queue, play_context)
results += self._process_pending_results(iterator, max_passes=max(1, int(len(self._tqm._workers) * 0.1)))
# go to next host/task group
if skip_rest:
continue
display.debug("done queuing things up, now waiting for results queue to drain")
results += self._wait_on_pending_results(iterator)
if self._pending_results > 0:
results += self._wait_on_pending_results(iterator)
host_results.extend(results)
all_role_blocks = []

View file

@ -45,16 +45,49 @@ class TestStrategyBase(unittest.TestCase):
pass
def test_strategy_base_init(self):
queue_items = []
def _queue_empty(*args, **kwargs):
return len(queue_items) == 0
def _queue_get(*args, **kwargs):
if len(queue_items) == 0:
raise Queue.Empty
else:
return queue_items.pop()
def _queue_put(item, *args, **kwargs):
queue_items.append(item)
mock_queue = MagicMock()
mock_queue.empty.side_effect = _queue_empty
mock_queue.get.side_effect = _queue_get
mock_queue.put.side_effect = _queue_put
mock_tqm = MagicMock(TaskQueueManager)
mock_tqm._final_q = MagicMock()
mock_tqm._final_q = mock_queue
mock_tqm._options = MagicMock()
mock_tqm._notified_handlers = {}
mock_tqm._listening_handlers = {}
strategy_base = StrategyBase(tqm=mock_tqm)
strategy_base.cleanup()
def test_strategy_base_run(self):
queue_items = []
def _queue_empty(*args, **kwargs):
return len(queue_items) == 0
def _queue_get(*args, **kwargs):
if len(queue_items) == 0:
raise Queue.Empty
else:
return queue_items.pop()
def _queue_put(item, *args, **kwargs):
queue_items.append(item)
mock_queue = MagicMock()
mock_queue.empty.side_effect = _queue_empty
mock_queue.get.side_effect = _queue_get
mock_queue.put.side_effect = _queue_put
mock_tqm = MagicMock(TaskQueueManager)
mock_tqm._final_q = MagicMock()
mock_tqm._final_q = mock_queue
mock_tqm._stats = MagicMock()
mock_tqm._notified_handlers = {}
mock_tqm._listening_handlers = {}
@ -87,8 +120,25 @@ class TestStrategyBase(unittest.TestCase):
mock_tqm._unreachable_hosts = dict(host1=True)
mock_iterator.get_failed_hosts.return_value = []
self.assertEqual(strategy_base.run(iterator=mock_iterator, play_context=mock_play_context, result=False), mock_tqm.RUN_UNREACHABLE_HOSTS)
strategy_base.cleanup()
def test_strategy_base_get_hosts(self):
queue_items = []
def _queue_empty(*args, **kwargs):
return len(queue_items) == 0
def _queue_get(*args, **kwargs):
if len(queue_items) == 0:
raise Queue.Empty
else:
return queue_items.pop()
def _queue_put(item, *args, **kwargs):
queue_items.append(item)
mock_queue = MagicMock()
mock_queue.empty.side_effect = _queue_empty
mock_queue.get.side_effect = _queue_get
mock_queue.put.side_effect = _queue_put
mock_hosts = []
for i in range(0, 5):
mock_host = MagicMock()
@ -100,7 +150,7 @@ class TestStrategyBase(unittest.TestCase):
mock_inventory.get_hosts.return_value = mock_hosts
mock_tqm = MagicMock()
mock_tqm._final_q = MagicMock()
mock_tqm._final_q = mock_queue
mock_tqm._notified_handlers = {}
mock_tqm._listening_handlers = {}
mock_tqm.get_inventory.return_value = mock_inventory
@ -120,45 +170,47 @@ class TestStrategyBase(unittest.TestCase):
mock_tqm._unreachable_hosts = ["host02"]
self.assertEqual(strategy_base.get_hosts_remaining(play=mock_play), mock_hosts[2:])
strategy_base.cleanup()
#@patch.object(WorkerProcess, 'run')
#def test_strategy_base_queue_task(self, mock_worker):
# def fake_run(self):
# return
@patch.object(WorkerProcess, 'run')
def test_strategy_base_queue_task(self, mock_worker):
def fake_run(self):
return
# mock_worker.run.side_effect = fake_run
mock_worker.run.side_effect = fake_run
# fake_loader = DictDataLoader()
# mock_var_manager = MagicMock()
# mock_host = MagicMock()
# mock_host.has_hostkey = True
# mock_inventory = MagicMock()
# mock_options = MagicMock()
# mock_options.module_path = None
fake_loader = DictDataLoader()
mock_var_manager = MagicMock()
mock_host = MagicMock()
mock_host.has_hostkey = True
mock_inventory = MagicMock()
mock_options = MagicMock()
mock_options.module_path = None
# tqm = TaskQueueManager(
# inventory=mock_inventory,
# variable_manager=mock_var_manager,
# loader=fake_loader,
# options=mock_options,
# passwords=None,
# )
# tqm._initialize_processes(3)
# tqm.hostvars = dict()
tqm = TaskQueueManager(
inventory=mock_inventory,
variable_manager=mock_var_manager,
loader=fake_loader,
options=mock_options,
passwords=None,
)
tqm._initialize_processes(3)
tqm.hostvars = dict()
# try:
# strategy_base = StrategyBase(tqm=tqm)
# strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
# self.assertEqual(strategy_base._cur_worker, 1)
# self.assertEqual(strategy_base._pending_results, 1)
# strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
# self.assertEqual(strategy_base._cur_worker, 2)
# self.assertEqual(strategy_base._pending_results, 2)
# strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
# self.assertEqual(strategy_base._cur_worker, 0)
# self.assertEqual(strategy_base._pending_results, 3)
# finally:
# tqm.cleanup()
try:
strategy_base = StrategyBase(tqm=tqm)
strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
self.assertEqual(strategy_base._cur_worker, 1)
self.assertEqual(strategy_base._pending_results, 1)
strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
self.assertEqual(strategy_base._cur_worker, 2)
self.assertEqual(strategy_base._pending_results, 2)
strategy_base._queue_task(host=mock_host, task=MagicMock(), task_vars=dict(), play_context=MagicMock())
self.assertEqual(strategy_base._cur_worker, 0)
self.assertEqual(strategy_base._pending_results, 3)
finally:
tqm.cleanup()
def test_strategy_base_process_pending_results(self):
mock_tqm = MagicMock()
@ -177,10 +229,13 @@ class TestStrategyBase(unittest.TestCase):
raise Queue.Empty
else:
return queue_items.pop()
def _queue_put(item, *args, **kwargs):
queue_items.append(item)
mock_queue = MagicMock()
mock_queue.empty.side_effect = _queue_empty
mock_queue.get.side_effect = _queue_get
mock_queue.put.side_effect = _queue_put
mock_tqm._final_q = mock_queue
mock_tqm._stats = MagicMock()
@ -271,7 +326,7 @@ class TestStrategyBase(unittest.TestCase):
strategy_base._blocked_hosts['test01'] = True
strategy_base._pending_results = 1
mock_iterator.is_failed.return_value = True
results = strategy_base._process_pending_results(iterator=mock_iterator)
results = strategy_base._wait_on_pending_results(iterator=mock_iterator)
self.assertEqual(len(results), 1)
self.assertEqual(results[0], task_result)
self.assertEqual(strategy_base._pending_results, 0)
@ -305,7 +360,7 @@ class TestStrategyBase(unittest.TestCase):
queue_items.append(TaskResult(host=mock_host.name, task=mock_task._uuid, return_data=dict(add_host=dict(host_name='newhost01', new_groups=['foo']))))
strategy_base._blocked_hosts['test01'] = True
strategy_base._pending_results = 1
results = strategy_base._process_pending_results(iterator=mock_iterator)
results = strategy_base._wait_on_pending_results(iterator=mock_iterator)
self.assertEqual(len(results), 1)
self.assertEqual(strategy_base._pending_results, 0)
self.assertNotIn('test01', strategy_base._blocked_hosts)
@ -313,7 +368,7 @@ class TestStrategyBase(unittest.TestCase):
queue_items.append(TaskResult(host=mock_host.name, task=mock_task._uuid, return_data=dict(add_group=dict(group_name='foo'))))
strategy_base._blocked_hosts['test01'] = True
strategy_base._pending_results = 1
results = strategy_base._process_pending_results(iterator=mock_iterator)
results = strategy_base._wait_on_pending_results(iterator=mock_iterator)
self.assertEqual(len(results), 1)
self.assertEqual(strategy_base._pending_results, 0)
self.assertNotIn('test01', strategy_base._blocked_hosts)
@ -321,7 +376,7 @@ class TestStrategyBase(unittest.TestCase):
queue_items.append(TaskResult(host=mock_host.name, task=mock_task._uuid, return_data=dict(changed=True, _ansible_notify=['test handler'])))
strategy_base._blocked_hosts['test01'] = True
strategy_base._pending_results = 1
results = strategy_base._process_pending_results(iterator=mock_iterator)
results = strategy_base._wait_on_pending_results(iterator=mock_iterator)
self.assertEqual(len(results), 1)
self.assertEqual(strategy_base._pending_results, 0)
self.assertNotIn('test01', strategy_base._blocked_hosts)
@ -340,6 +395,7 @@ class TestStrategyBase(unittest.TestCase):
#queue_items.append(('bad'))
#self.assertRaises(AnsibleError, strategy_base._process_pending_results, iterator=mock_iterator)
strategy_base.cleanup()
def test_strategy_base_load_included_file(self):
fake_loader = DictDataLoader({
@ -350,13 +406,30 @@ class TestStrategyBase(unittest.TestCase):
""",
})
queue_items = []
def _queue_empty(*args, **kwargs):
return len(queue_items) == 0
def _queue_get(*args, **kwargs):
if len(queue_items) == 0:
raise Queue.Empty
else:
return queue_items.pop()
def _queue_put(item, *args, **kwargs):
queue_items.append(item)
mock_queue = MagicMock()
mock_queue.empty.side_effect = _queue_empty
mock_queue.get.side_effect = _queue_get
mock_queue.put.side_effect = _queue_put
mock_tqm = MagicMock()
mock_tqm._final_q = MagicMock()
mock_tqm._final_q = mock_queue
mock_tqm._notified_handlers = {}
mock_tqm._listening_handlers = {}
strategy_base = StrategyBase(tqm=mock_tqm)
strategy_base._loader = fake_loader
strategy_base.cleanup()
mock_play = MagicMock()
@ -442,4 +515,5 @@ class TestStrategyBase(unittest.TestCase):
result = strategy_base.run_handlers(iterator=mock_iterator, play_context=mock_play_context)
finally:
strategy_base.cleanup()
tqm.cleanup()

View file

@ -25,7 +25,7 @@ from ansible.compat.tests.mock import patch, MagicMock
from ansible import constants as C
from ansible.errors import *
from ansible.plugins import filter_loader, lookup_loader, module_loader
from ansible.executor.task_queue_manager import SharedPluginLoaderObj
from ansible.plugins.strategy import SharedPluginLoaderObj
from ansible.template import Templar
from units.mock.loader import DictDataLoader