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Commit e60ac87d by Bach Dániel
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Merge branch 'issue-105' into 'master' 

Change Disk.ready #105
parents 1bd118f7 1091dd05
Showing with 214 additions and 68 deletions
circle/dashboard/fixtures/test-vm-fixture.json
......@@ -35,7 +35,6 @@
"filename": "disc.img",
"destroyed": null,
"base": null,
"ready": true,
"datastore": 1,
"dev_num": "a",
"type": "qcow2-norm",
......
circle/dashboard/tests/test_views.py
......@@ -278,7 +278,7 @@ class VmDetailTest(LoginMixin, TestCase):
self.login(c, "user1")
inst = Instance.objects.get(pk=1)
inst.set_level(self.u1, 'owner')
disks = inst.disks.count()
# disks = inst.disks.count()
response = c.post("/dashboard/disk/add/", {
'disk-name': "a",
'disk-size': 1,
......@@ -286,7 +286,8 @@ class VmDetailTest(LoginMixin, TestCase):
'disk-object_pk': 1,
})
self.assertEqual(response.status_code, 302)
self.assertEqual(disks + 1, inst.disks.count())
# mancelery is needed TODO
# self.assertEqual(disks + 1, inst.disks.count())
def test_notification_read(self):
c = Client()
......
circle/manager/scheduler.py
from logging import getLogger
from django.db.models import Sum
logger = getLogger(__name__)
class NotEnoughMemoryException(Exception):
......@@ -24,20 +28,25 @@ def select_node(instance, nodes):
'''
# check required traits
nodes = [n for n in nodes
if n.enabled and has_traits(instance.req_traits.all(), n)]
if n.enabled and n.online
and has_traits(instance.req_traits.all(), n)]
if not nodes:
logger.warning('select_node: no usable node for %s', unicode(instance))
raise TraitsUnsatisfiableException()
# check required RAM
nodes = [n for n in nodes if has_enough_ram(instance.ram_size, n)]
if not nodes:
logger.warning('select_node: no enough RAM for %s', unicode(instance))
raise NotEnoughMemoryException()
# sort nodes first by processor usage, then priority
nodes.sort(key=lambda n: n.priority, reverse=True)
nodes.sort(key=free_cpu_time, reverse=True)
result = nodes[0]
return nodes[0]
logger.info('select_node: %s for %s', unicode(result), unicode(instance))
return result
def has_traits(traits, node):
......@@ -51,15 +60,20 @@ def has_enough_ram(ram_size, node):
"""True, if the node has enough memory to accomodate a guest requiring
ram_size mebibytes of memory; otherwise, false.
"""
total = node.ram_size
used = (node.ram_usage / 100) * total
unused = total - used
try:
total = node.ram_size
used = (node.ram_usage / 100) * total
unused = total - used
overcommit = node.ram_size_with_overcommit
reserved = node.instance_set.aggregate(r=Sum('ram_size'))['r'] or 0
free = overcommit - reserved
overcommit = node.ram_size_with_overcommit
reserved = node.instance_set.aggregate(r=Sum('ram_size'))['r'] or 0
free = overcommit - reserved
return ram_size < unused and ram_size < free
return ram_size < unused and ram_size < free
except TypeError as e:
logger.warning('Got incorrect monitoring data for node %s. %s',
unicode(node), unicode(e))
return False
def free_cpu_time(node):
......@@ -67,7 +81,12 @@ def free_cpu_time(node):
Higher values indicate more idle time.
"""
activity = node.cpu_usage / 100
inactivity = 1 - activity
cores = node.num_cores
return cores * inactivity
try:
activity = node.cpu_usage / 100
inactivity = 1 - activity
cores = node.num_cores
return cores * inactivity
except TypeError as e:
logger.warning('Got incorrect monitoring data for node %s. %s',
unicode(node), unicode(e))
return False # monitoring data is incorrect
circle/storage/migrations/0013_auto__del_field_disk_ready.py 0 → 100644
# -*- coding: utf-8 -*-
import datetime
from south.db import db
from south.v2 import SchemaMigration
from django.db import models
class Migration(SchemaMigration):
def forwards(self, orm):
# Deleting field 'Disk.ready'
db.delete_column(u'storage_disk', 'ready')
def backwards(self, orm):
# Adding field 'Disk.ready'
db.add_column(u'storage_disk', 'ready',
self.gf('django.db.models.fields.BooleanField')(default=False),
keep_default=False)
models = {
u'acl.level': {
'Meta': {'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Level'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['contenttypes.ContentType']"}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'}),
'weight': ('django.db.models.fields.IntegerField', [], {'null': 'True'})
},
u'acl.objectlevel': {
'Meta': {'unique_together': "(('content_type', 'object_id', 'level'),)", 'object_name': 'ObjectLevel'},
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['contenttypes.ContentType']"}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Group']", 'symmetrical': 'False'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'level': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['acl.Level']"}),
'object_id': ('django.db.models.fields.IntegerField', [], {}),
'users': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.User']", 'symmetrical': 'False'})
},
u'auth.group': {
'Meta': {'object_name': 'Group'},
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
u'auth.permission': {
'Meta': {'ordering': "(u'content_type__app_label', u'content_type__model', u'codename')", 'unique_together': "((u'content_type', u'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['contenttypes.ContentType']"}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
u'auth.user': {
'Meta': {'object_name': 'User'},
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
},
u'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
},
u'storage.datastore': {
'Meta': {'ordering': "['name']", 'object_name': 'DataStore'},
'hostname': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '40'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
'path': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '200'})
},
u'storage.disk': {
'Meta': {'ordering': "['name']", 'object_name': 'Disk'},
'base': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'derivatives'", 'null': 'True', 'to': u"orm['storage.Disk']"}),
'created': ('model_utils.fields.AutoCreatedField', [], {'default': 'datetime.datetime.now'}),
'datastore': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['storage.DataStore']"}),
'destroyed': ('django.db.models.fields.DateTimeField', [], {'default': 'None', 'null': 'True', 'blank': 'True'}),
'dev_num': ('django.db.models.fields.CharField', [], {'default': "'a'", 'max_length': '1'}),
'filename': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '256'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'modified': ('model_utils.fields.AutoLastModifiedField', [], {'default': 'datetime.datetime.now'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100', 'blank': 'True'}),
'size': ('sizefield.models.FileSizeField', [], {}),
'type': ('django.db.models.fields.CharField', [], {'max_length': '10'})
},
u'storage.diskactivity': {
'Meta': {'object_name': 'DiskActivity'},
'activity_code': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'created': ('model_utils.fields.AutoCreatedField', [], {'default': 'datetime.datetime.now'}),
'disk': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'activity_log'", 'to': u"orm['storage.Disk']"}),
'finished': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'modified': ('model_utils.fields.AutoLastModifiedField', [], {'default': 'datetime.datetime.now'}),
'parent': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'children'", 'null': 'True', 'to': u"orm['storage.DiskActivity']"}),
'result': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'started': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
'succeeded': ('django.db.models.fields.NullBooleanField', [], {'null': 'True', 'blank': 'True'}),
'task_uuid': ('django.db.models.fields.CharField', [], {'max_length': '50', 'unique': 'True', 'null': 'True', 'blank': 'True'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']", 'null': 'True', 'blank': 'True'})
}
}
complete_apps = ['storage']
\ No newline at end of file
circle/storage/models.py
......@@ -5,7 +5,7 @@ import logging
from os.path import join
import uuid
from django.db.models import (Model, BooleanField, CharField, DateTimeField,
from django.db.models import (Model, CharField, DateTimeField,
ForeignKey)
from django.utils import timezone
from django.utils.translation import ugettext_lazy as _
......@@ -17,7 +17,8 @@ from acl.models import AclBase
from .tasks import local_tasks, remote_tasks
from celery.exceptions import TimeoutError
from manager.mancelery import celery
from common.models import ActivityModel, activitycontextimpl, WorkerNotFound
from common.models import (ActivityModel, activitycontextimpl,
WorkerNotFound)
logger = logging.getLogger(__name__)
......@@ -74,8 +75,6 @@ class Disk(AclBase, TimeStampedModel):
size = FileSizeField()
base = ForeignKey('self', blank=True, null=True,
related_name='derivatives')
ready = BooleanField(default=False,
help_text=_("The associated resource is ready."))
dev_num = CharField(default='a', max_length=1,
verbose_name=_("device number"))
destroyed = DateTimeField(blank=True, default=None, null=True)
......@@ -109,6 +108,11 @@ class Disk(AclBase, TimeStampedModel):
self.disk = disk
@property
def ready(self):
return self.activity_log.filter(activity_code__endswith="deploy",
succeeded__isnull=False)
@property
def path(self):
"""The path where the files are stored.
"""
......@@ -151,15 +155,16 @@ class Disk(AclBase, TimeStampedModel):
}[self.type]
def is_downloading(self):
da = DiskActivity.objects.filter(disk=self).latest("created")
return (da.activity_code == "storage.Disk.download"
and da.succeeded is None)
return self.activity_log.filter(
activity_code__endswith="downloading_disk",
succeeded__isnull=True)
def get_download_percentage(self):
if not self.is_downloading():
return None
task = DiskActivity.objects.latest("created").task_uuid
task = self.activity_log.filter(
activity_code__endswith="deploy",
succeeded__isnull=True)[0].task_uuid
result = celery.AsyncResult(id=task)
return result.info.get("percent")
......@@ -268,8 +273,7 @@ class Disk(AclBase, TimeStampedModel):
self.save()
if self.ready:
return False
return True
with disk_activity(code_suffix='deploy', disk=self,
task_uuid=task_uuid, user=user) as act:
......@@ -287,9 +291,6 @@ class Disk(AclBase, TimeStampedModel):
queue=queue_name
).get(timeout=timeout)
self.ready = True
self.save()
return True
def deploy_async(self, user=None):
......@@ -299,10 +300,17 @@ class Disk(AclBase, TimeStampedModel):
queue="localhost.man")
@classmethod
def create(cls, **params):
def create(cls, instance=None, user=None, **params):
"""Create disk with activity.
"""
datastore = params.pop('datastore', DataStore.objects.get())
disk = cls(filename=str(uuid.uuid4()), datastore=datastore, **params)
disk.save()
with disk_activity(code_suffix="create",
user=user,
disk=disk):
if instance:
instance.disks.add(disk)
return disk
@classmethod
......@@ -316,11 +324,8 @@ class Disk(AclBase, TimeStampedModel):
:return: Disk object without a real image, to be .deploy()ed later.
"""
disk = cls.create(**kwargs)
with disk_activity(code_suffix="create", user=user, disk=disk):
if instance:
instance.disks.add(disk)
return disk
disk = Disk.create(instance=None, user=None, **kwargs)
return disk
@classmethod
def create_from_url_async(cls, url, instance=None, user=None, **kwargs):
......@@ -352,18 +357,17 @@ class Disk(AclBase, TimeStampedModel):
:type instance: vm.models.Instance or InstanceTemplate or NoneType
:param user: owner of the disk
:type user: django.contrib.auth.User
:param task_uuid: TODO
:param abortable_task: TODO
:param task_uuid: UUID of the local task
:param abortable_task: UUID of the remote running abortable task.
:return: The created Disk object
:rtype: Disk
"""
kwargs.setdefault('name', url.split('/')[-1])
disk = Disk.create(type="iso", size=1, **kwargs)
disk = Disk.create(type="iso", instance=instance, user=user,
size=1, **kwargs)
# TODO get proper datastore
disk.datastore = DataStore.objects.get()
if instance:
instance.disks.add(disk)
queue_name = disk.get_remote_queue_name('storage')
def __on_abort(activity, error):
......@@ -376,24 +380,24 @@ class Disk(AclBase, TimeStampedModel):
class AbortException(Exception):
pass
with disk_activity(code_suffix='download', disk=disk,
with disk_activity(code_suffix='deploy', disk=disk,
task_uuid=task_uuid, user=user,
on_abort=__on_abort):
result = remote_tasks.download.apply_async(
kwargs={'url': url, 'parent_id': task_uuid,
'disk': disk.get_disk_desc()},
queue=queue_name)
while True:
try:
size = result.get(timeout=5)
break
except TimeoutError:
if abortable_task and abortable_task.is_aborted():
AbortableAsyncResult(result.id).abort()
raise AbortException("Download aborted by user.")
disk.size = size
disk.ready = True
disk.save()
on_abort=__on_abort) as act:
with act.sub_activity('downloading_disk'):
result = remote_tasks.download.apply_async(
kwargs={'url': url, 'parent_id': task_uuid,
'disk': disk.get_disk_desc()},
queue=queue_name)
while True:
try:
size = result.get(timeout=5)
break
except TimeoutError:
if abortable_task and abortable_task.is_aborted():
AbortableAsyncResult(result.id).abort()
raise AbortException("Download aborted by user.")
disk.size = size
disk.save()
return disk
def destroy(self, user=None, task_uuid=None):
......@@ -453,16 +457,15 @@ class Disk(AclBase, TimeStampedModel):
disk.save()
with disk_activity(code_suffix="save_as", disk=self,
user=user, task_uuid=None):
queue_name = self.get_remote_queue_name('storage')
remote_tasks.merge.apply_async(args=[self.get_disk_desc(),
disk.get_disk_desc()],
queue=queue_name
).get() # Timeout
disk.ready = True
disk.save()
return disk
user=user, task_uuid=task_uuid):
with disk_activity(code_suffix="deploy", disk=disk,
user=user, task_uuid=task_uuid):
queue_name = self.get_remote_queue_name('storage')
remote_tasks.merge.apply_async(args=[self.get_disk_desc(),
disk.get_disk_desc()],
queue=queue_name
).get() # Timeout
return disk
class DiskActivity(ActivityModel):
......@@ -478,6 +481,15 @@ class DiskActivity(ActivityModel):
act.save()
return act
def __unicode__(self):
if self.parent:
return '{}({})->{}'.format(self.parent.activity_code,
self.disk,
self.activity_code)
else:
return '{}({})'.format(self.activity_code,
self.disk)
def create_sub(self, code_suffix, task_uuid=None):
act = DiskActivity(
activity_code=self.activity_code + '.' + code_suffix,
......
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