from ganeti import workerpool
from ganeti import errors
from ganeti import utils
+from ganeti import compat
import testutils
self.lock = threading.Lock()
self.prioresult = {}
self.samepriodefer = {}
+ self.num2ordertaskid = {}
class DeferringWorker(workerpool.BaseWorker):
def RunTask(self, ctx, num, targetprio):
ctx.lock.acquire()
try:
+ otilst = ctx.num2ordertaskid.setdefault(num, [])
+ otilst.append(self._GetCurrentOrderAndTaskId())
+
if num in ctx.samepriodefer:
del ctx.samepriodefer[num]
raise workerpool.DeferTask()
ctx.lock.release()
+class PriorityContext:
+ def __init__(self):
+ self.lock = threading.Lock()
+ self.result = []
+
+
+class PriorityWorker(workerpool.BaseWorker):
+ def RunTask(self, ctx, data):
+ ctx.lock.acquire()
+ try:
+ ctx.result.append((self.GetCurrentPriority(), data))
+ finally:
+ ctx.lock.release()
+
+
+class NotImplementedWorker(workerpool.BaseWorker):
+ def RunTask(self):
+ raise NotImplementedError
+
+
class TestWorkerpool(unittest.TestCase):
"""Workerpool tests"""
["Hello world %s" % i for i in range(10)])
self.assertRaises(AssertionError, wp.AddManyTasks,
[i for i in range(10)])
+ self.assertRaises(AssertionError, wp.AddManyTasks, [], task_id=0)
wp.AddManyTasks([(ctx, "Hello world %s" % i, ) for i in range(10)])
wp.AddTask((ctx, "A separate hello"))
rnd = random.Random(14921)
data = {}
+ num2taskid = {}
for i in range(1, 333):
ctx.lock.acquire()
try:
ctx.lock.release()
prio = int(rnd.random() * 30)
- wp.AddTask((ctx, i, prio), priority=50)
+ num2taskid[i] = 1000 * i
+ wp.AddTask((ctx, i, prio), priority=50,
+ task_id=num2taskid[i])
data.setdefault(prio, set()).add(i)
# Cause some distortion
ctx.lock.acquire()
try:
self.assertEqual(data, ctx.prioresult)
+
+ all_order_ids = []
+
+ for (num, numordertaskid) in ctx.num2ordertaskid.items():
+ order_ids = map(compat.fst, numordertaskid)
+ self.assertFalse(utils.FindDuplicates(order_ids),
+ msg="Order ID has been reused")
+ all_order_ids.extend(order_ids)
+
+ for task_id in map(compat.snd, numordertaskid):
+ self.assertEqual(task_id, num2taskid[num],
+ msg=("Task %s used different task IDs" % num))
+
+ self.assertFalse(utils.FindDuplicates(all_order_ids),
+ msg="Order ID has been reused")
+ finally:
+ ctx.lock.release()
+
+ self._CheckWorkerCount(wp, 1)
+ finally:
+ wp.TerminateWorkers()
+ self._CheckWorkerCount(wp, 0)
+
+ def testChangeTaskPriority(self):
+ wp = workerpool.WorkerPool("Test", 1, PriorityWorker)
+ try:
+ self._CheckWorkerCount(wp, 1)
+
+ ctx = PriorityContext()
+
+ # Use static seed for this test
+ rnd = random.Random(4727)
+
+ # Disable processing of tasks
+ wp.SetActive(False)
+
+ # No task ID
+ self.assertRaises(workerpool.NoSuchTask, wp.ChangeTaskPriority,
+ None, 0)
+
+ # Pre-generate task IDs and priorities
+ count = 100
+ task_ids = range(0, count)
+ priorities = range(200, 200 + count) * 2
+
+ rnd.shuffle(task_ids)
+ rnd.shuffle(priorities)
+
+ # Make sure there are some duplicate priorities, but not all
+ priorities[count * 2 - 10:count * 2 - 1] = \
+ priorities[count - 10: count - 1]
+
+ assert len(priorities) == 2 * count
+ assert priorities[0:(count - 1)] != priorities[count:(2 * count - 1)]
+
+ # Add some tasks; this loop consumes the first half of all previously
+ # generated priorities
+ for (idx, task_id) in enumerate(task_ids):
+ wp.AddTask((ctx, idx),
+ priority=priorities.pop(),
+ task_id=task_id)
+
+ self.assertEqual(len(wp._tasks), len(task_ids))
+ self.assertEqual(len(wp._taskdata), len(task_ids))
+
+ # Tasks have been added, so half of the priorities should have been
+ # consumed
+ assert len(priorities) == len(task_ids)
+
+ # Change task priority
+ expected = []
+ for ((idx, task_id), prio) in zip(enumerate(task_ids), priorities):
+ wp.ChangeTaskPriority(task_id, prio)
+ expected.append((prio, idx))
+
+ self.assertEqual(len(wp._taskdata), len(task_ids))
+
+ # Half the entries are now abandoned tasks
+ self.assertEqual(len(wp._tasks), len(task_ids) * 2)
+
+ assert len(priorities) == count
+ assert len(task_ids) == count
+
+ # Start processing
+ wp.SetActive(True)
+
+ # Wait for tasks to finish
+ wp.Quiesce()
+
+ self._CheckNoTasks(wp)
+
+ for task_id in task_ids:
+ # All tasks are done
+ self.assertRaises(workerpool.NoSuchTask, wp.ChangeTaskPriority,
+ task_id, 0)
+
+ # Check result
+ ctx.lock.acquire()
+ try:
+ self.assertEqual(ctx.result, sorted(expected))
finally:
ctx.lock.release()
wp.TerminateWorkers()
self._CheckWorkerCount(wp, 0)
+ def testChangeTaskPriorityInteralStructures(self):
+ wp = workerpool.WorkerPool("Test", 1, NotImplementedWorker)
+ try:
+ self._CheckWorkerCount(wp, 1)
+
+ # Use static seed for this test
+ rnd = random.Random(643)
+
+ (num1, num2) = rnd.sample(range(1000), 2)
+
+ # Disable processing of tasks
+ wp.SetActive(False)
+
+ self.assertFalse(wp._tasks)
+ self.assertFalse(wp._taskdata)
+
+ # No priority or task ID
+ wp.AddTask(())
+ self.assertEqual(wp._tasks, [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ ])
+ self.assertFalse(wp._taskdata)
+
+ # No task ID
+ wp.AddTask((), priority=7413)
+ self.assertEqual(wp._tasks, [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [7413, 1, None, ()],
+ ])
+ self.assertFalse(wp._taskdata)
+
+ # Start adding real tasks
+ wp.AddTask((), priority=10267659, task_id=num1)
+ self.assertEqual(wp._tasks, [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [7413, 1, None, ()],
+ [10267659, 2, num1, ()],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [10267659, 2, num1, ()],
+ })
+
+ wp.AddTask((), priority=123, task_id=num2)
+ self.assertEqual(sorted(wp._tasks), [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [123, 3, num2, ()],
+ [7413, 1, None, ()],
+ [10267659, 2, num1, ()],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [10267659, 2, num1, ()],
+ num2: [123, 3, num2, ()],
+ })
+
+ wp.ChangeTaskPriority(num1, 100)
+ self.assertEqual(sorted(wp._tasks), [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [100, 2, num1, ()],
+ [123, 3, num2, ()],
+ [7413, 1, None, ()],
+ [10267659, 2, num1, None],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [100, 2, num1, ()],
+ num2: [123, 3, num2, ()],
+ })
+
+ wp.ChangeTaskPriority(num2, 91337)
+ self.assertEqual(sorted(wp._tasks), [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [100, 2, num1, ()],
+ [123, 3, num2, None],
+ [7413, 1, None, ()],
+ [91337, 3, num2, ()],
+ [10267659, 2, num1, None],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [100, 2, num1, ()],
+ num2: [91337, 3, num2, ()],
+ })
+
+ wp.ChangeTaskPriority(num1, 10139)
+ self.assertEqual(sorted(wp._tasks), [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [100, 2, num1, None],
+ [123, 3, num2, None],
+ [7413, 1, None, ()],
+ [10139, 2, num1, ()],
+ [91337, 3, num2, ()],
+ [10267659, 2, num1, None],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [10139, 2, num1, ()],
+ num2: [91337, 3, num2, ()],
+ })
+
+ # Change to the same priority once again
+ wp.ChangeTaskPriority(num1, 10139)
+ self.assertEqual(sorted(wp._tasks), [
+ [workerpool._DEFAULT_PRIORITY, 0, None, ()],
+ [100, 2, num1, None],
+ [123, 3, num2, None],
+ [7413, 1, None, ()],
+ [10139, 2, num1, None],
+ [10139, 2, num1, ()],
+ [91337, 3, num2, ()],
+ [10267659, 2, num1, None],
+ ])
+ self.assertEqual(wp._taskdata, {
+ num1: [10139, 2, num1, ()],
+ num2: [91337, 3, num2, ()],
+ })
+
+ self._CheckWorkerCount(wp, 1)
+ finally:
+ wp.TerminateWorkers()
+ self._CheckWorkerCount(wp, 0)
+
if __name__ == "__main__":
testutils.GanetiTestProgram()
projects / ganeti-local / blobdiff