Fixing up performance

lib/ansible/executor/process/worker.py

@@ -21,6 +21,7 @@ __metaclass__ = type
 
 from ansible.compat.six.moves import queue
 
+import json
 import multiprocessing
 import os
 import signal
@@ -43,6 +44,7 @@ from ansible.executor.task_executor import TaskExecutor
 from ansible.executor.task_result import TaskResult
 from ansible.playbook.handler import Handler
 from ansible.playbook.task import Task
+from ansible.vars.unsafe_proxy import AnsibleJSONUnsafeDecoder
 
 from ansible.utils.debug import debug
 
@@ -59,9 +61,9 @@ class WorkerProcess(multiprocessing.Process):
     def __init__(self, tqm, main_q, rslt_q, loader):
 
         # takes a task queue manager as the sole param:
-        self._main_q = main_q
-        self._rslt_q = rslt_q
-        self._loader = loader
+        self._main_q   = main_q
+        self._rslt_q   = rslt_q
+        self._loader   = loader
 
         # dupe stdin, if we have one
         self._new_stdin = sys.stdin
@@ -97,9 +99,9 @@ class WorkerProcess(multiprocessing.Process):
         while True:
             task = None
             try:
+                debug("waiting for a message...")
                 (host, task, basedir, job_vars, play_context, shared_loader_obj) = self._main_q.get()
-                debug("there's work to be done!")
-                debug("got a task/handler to work on: %s" % task)
+                debug("there's work to be done! got a task/handler to work on: %s" % task)
 
                 # because the task queue manager starts workers (forks) before the
                 # playbook is loaded, set the basedir of the loader inherted by
@@ -114,7 +116,15 @@ class WorkerProcess(multiprocessing.Process):
 
                 # execute the task and build a TaskResult from the result
                 debug("running TaskExecutor() for %s/%s" % (host, task))
-                executor_result = TaskExecutor(host, task, job_vars, play_context, self._new_stdin, self._loader, shared_loader_obj).run()
+                executor_result = TaskExecutor(
+                    host,
+                    task,
+                    job_vars,
+                    play_context,
+                    self._new_stdin,
+                    self._loader,
+                    shared_loader_obj,
+                ).run()
                 debug("done running TaskExecutor() for %s/%s" % (host, task))
                 task_result = TaskResult(host, task, executor_result)
 

lib/ansible/executor/task_executor.py

@@ -156,7 +156,8 @@ class TaskExecutor:
         # create a copy of the job vars here so that we can modify
         # them temporarily without changing them too early for other
         # parts of the code that might still need a pristine version
-        vars_copy = self._job_vars.copy()
+        #vars_copy = self._job_vars.copy()
+        vars_copy = self._job_vars
 
         # now we update them with the play context vars
         self._play_context.update_vars(vars_copy)
@@ -196,7 +197,8 @@ class TaskExecutor:
 
         # make copies of the job vars and task so we can add the item to
         # the variables and re-validate the task with the item variable
-        task_vars = self._job_vars.copy()
+        #task_vars = self._job_vars.copy()
+        task_vars = self._job_vars
 
         items = self._squash_items(items, task_vars)
         for item in items:
@@ -357,7 +359,8 @@ class TaskExecutor:
 
         # make a copy of the job vars here, in case we need to update them
         # with the registered variable value later on when testing conditions
-        vars_copy = variables.copy()
+        #vars_copy = variables.copy()
+        vars_copy = variables
 
         self._display.debug("starting attempt loop")
         result = None

lib/ansible/executor/task_queue_manager.py

@@ -96,7 +96,7 @@ class TaskQueueManager:
         self._workers = []
 
     def _initialize_workers(self, num):
-        for i in range(num):
+        for i in xrange(num_workers):
             main_q = multiprocessing.Queue()
             rslt_q = multiprocessing.Queue()
 

lib/ansible/inventory/__init__.py

@@ -77,6 +77,13 @@ class Inventory(object):
 
         self.parse_inventory(host_list)
 
+    def serialize(self):
+        data = dict()
+        return data
+
+    def deserialize(self, data):
+        pass
+
     def parse_inventory(self, host_list):
 
         if isinstance(host_list, string_types):
@@ -686,8 +693,6 @@ class Inventory(object):
             basedirs = [self._playbook_basedir]
 
         for basedir in basedirs:
-            display.debug('getting vars from %s' % basedir)
-
             # this can happen from particular API usages, particularly if not run
             # from /usr/bin/ansible-playbook
             if basedir in ('', None):

lib/ansible/plugins/strategy/__init__.py

@@ -22,6 +22,9 @@ __metaclass__ = type
 from ansible.compat.six.moves import queue as Queue
 from ansible.compat.six import iteritems, text_type, string_types
 
+import json
+import pickle
+import sys
 import time
 
 from jinja2.exceptions import UndefinedError
@@ -37,7 +40,7 @@ from ansible.playbook.included_file import IncludedFile
 from ansible.playbook.role import hash_params
 from ansible.plugins import action_loader, connection_loader, filter_loader, lookup_loader, module_loader, test_loader
 from ansible.template import Templar
-from ansible.vars.unsafe_proxy import wrap_var
+from ansible.vars.unsafe_proxy import wrap_var, AnsibleJSONUnsafeEncoder
 
 try:
     from __main__ import display
@@ -127,11 +130,8 @@ class StrategyBase:
         Base class method to add extra variables/information to the list of task
         vars sent through the executor engine regarding the task queue manager state.
         '''
-
-        new_vars = vars.copy()
-        new_vars['ansible_current_hosts'] = self.get_hosts_remaining(play)
-        new_vars['ansible_failed_hosts'] = self.get_failed_hosts(play)
-        return new_vars
+        vars['ansible_current_hosts'] = [h.name for h in self.get_hosts_remaining(play)]
+        vars['ansible_failed_hosts'] = [h.name for h in self.get_failed_hosts(play)]
 
     def _queue_task(self, host, task, task_vars, play_context):
         ''' handles queueing the task up to be sent to a worker '''
@@ -263,7 +263,7 @@ class StrategyBase:
 
                     if task.delegate_to is not None:
                         task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=task)
-                        task_vars = self.add_tqm_variables(task_vars, play=iterator._play)
+                        add_tqm_variables(task_vars, play=iterator._play)
                         if item is not None:
                             task_vars['item'] = item
                         templar = Templar(loader=self._loader, variables=task_vars)
@@ -516,7 +516,7 @@ class StrategyBase:
         for host in notified_hosts:
             if not handler.has_triggered(host) and (host.name not in self._tqm._failed_hosts or play_context.force_handlers):
                 task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=handler)
-                task_vars = self.add_tqm_variables(task_vars, play=iterator._play)
+                self.add_tqm_variables(task_vars, play=iterator._play)
                 self._queue_task(host, handler, task_vars, play_context)
                 if run_once:
                     break

lib/ansible/plugins/strategy/linear.py

@@ -211,7 +211,7 @@ class StrategyModule(StrategyBase):
 
                         self._display.debug("getting variables")
                         task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=task)
-                        task_vars = self.add_tqm_variables(task_vars, play=iterator._play)
+                        self.add_tqm_variables(task_vars, play=iterator._play)
                         templar = Templar(loader=self._loader, variables=task_vars)
                         self._display.debug("done getting variables")
 

lib/ansible/template/__init__.py

@@ -258,7 +258,7 @@ class Templar:
         '''
 
         assert isinstance(variables, dict)
-        self._available_variables = variables.copy()
+        self._available_variables = variables
 
     def template(self, variable, convert_bare=False, preserve_trailing_newlines=True, escape_backslashes=True, fail_on_undefined=None, overrides=None, convert_data=True):
         '''

lib/ansible/template/vars.py

@@ -83,7 +83,10 @@ class AnsibleJ2Vars:
         if isinstance(variable, dict) and varname == "vars" or isinstance(variable, HostVars):
             return variable
         else:
-            return self._templar.template(variable)
+            if self._templar._contains_vars(variable):
+                return self._templar.template(variable)
+            else:
+                return variable
 
     def add_locals(self, locals):
         '''

lib/ansible/vars/__init__.py

@@ -198,7 +198,7 @@ class VariableManager:
             debug("vars are cached, returning them now")
             return VARIABLE_CACHE[cache_entry]
 
-        all_vars = defaultdict(dict)
+        all_vars = dict()
         magic_variables = self._get_magic_variables(
             loader=loader,
             play=play,

lib/ansible/vars/unsafe_proxy.py

@@ -53,11 +53,12 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import json
+
 from ansible.utils.unicode import to_unicode
 from ansible.compat.six import string_types, text_type
 
-__all__ = ['UnsafeProxy', 'AnsibleUnsafe', 'wrap_var']
-
+__all__ = ['UnsafeProxy', 'AnsibleUnsafe', 'AnsibleJSONUnsafeEncoder', 'AnsibleJSONUnsafeDecoder', 'wrap_var']
 
 class AnsibleUnsafe(object):
     __UNSAFE__ = True
@@ -76,6 +77,20 @@ class UnsafeProxy(object):
             return AnsibleUnsafeText(obj)
         return obj
 
+class AnsibleJSONUnsafeEncoder(json.JSONEncoder):
+    def encode(self, obj):
+        if isinstance(obj, AnsibleUnsafe):
+            return super(AnsibleJSONUnsafeEncoder, self).encode(dict(__ansible_unsafe=True, value=unicode(obj)))
+        else:
+            return super(AnsibleJSONUnsafeEncoder, self).encode(obj)
+
+class AnsibleJSONUnsafeDecoder(json.JSONDecoder):
+    def decode(self, obj):
+        value = super(AnsibleJSONUnsafeDecoder, self).decode(obj)
+        if isinstance(value, dict) and '__ansible_unsafe' in value:
+            return UnsafeProxy(value.get('value', ''))
+        else:
+            return value
 
 def _wrap_dict(v):
     for k in v.keys():