diff --git a/gnuviechadmin/fileservertasks/tasks.py b/gnuviechadmin/fileservertasks/tasks.py
index c04d395..75ebad0 100644
--- a/gnuviechadmin/fileservertasks/tasks.py
+++ b/gnuviechadmin/fileservertasks/tasks.py
@@ -9,7 +9,7 @@ from celery import shared_task
 
 
 @shared_task
-def setup_file_sftp_userdir(username):
+def setup_file_sftp_userdir(username, *args, **kwargs):
     """
     This task creates the home directory for an SFTP user if it does not exist
     yet.
@@ -23,7 +23,7 @@ def setup_file_sftp_userdir(username):
 
 
 @shared_task
-def delete_file_sftp_userdir(username):
+def delete_file_sftp_userdir(username, *args, **kwargs):
     """
     This task recursively deletes the home directory of an SFTP user if it
     does not exist yet.
@@ -37,7 +37,7 @@ def delete_file_sftp_userdir(username):
 
 
 @shared_task
-def setup_file_mail_userdir(username):
+def setup_file_mail_userdir(username, *args, **kwargs):
     """
     This task creates the mail base directory for a user if it does not exist
     yet.
@@ -52,7 +52,7 @@ def setup_file_mail_userdir(username):
 
 
 @shared_task
-def delete_file_mail_userdir(username):
+def delete_file_mail_userdir(username, *args, **kwargs):
     """
     This task recursively deletes the mail base directory for a user if it
     does not exist yet.
diff --git a/gnuviechadmin/gnuviechadmin/context_processors.py b/gnuviechadmin/gnuviechadmin/context_processors.py
index 3e71aa2..4221551 100644
--- a/gnuviechadmin/gnuviechadmin/context_processors.py
+++ b/gnuviechadmin/gnuviechadmin/context_processors.py
@@ -50,7 +50,7 @@ def navigation(request):
             request.path.endswith('/impressum/')
         ):
             context['active_item'] = 'imprint'
-        else:
+        elif not viewmodule.startswith('django.contrib.admin'):
             _LOGGER.debug(
                 'no special handling for view %s in module %s, fallback to '
                 'default active menu item %s',
diff --git a/gnuviechadmin/gnuviechadmin/settings/base.py b/gnuviechadmin/gnuviechadmin/settings/base.py
index 0e79b62..891811d 100644
--- a/gnuviechadmin/gnuviechadmin/settings/base.py
+++ b/gnuviechadmin/gnuviechadmin/settings/base.py
@@ -261,6 +261,7 @@ ALLAUTH_APPS = (
 LOCAL_APPS = (
     'dashboard',
     'taskresults',
+    'ldaptasks',
     'mysqltasks',
     'pgsqltasks',
     'fileservertasks',
diff --git a/gnuviechadmin/gnuviechadmin/settings/local.py b/gnuviechadmin/gnuviechadmin/settings/local.py
index 6cc5823..14c7139 100644
--- a/gnuviechadmin/gnuviechadmin/settings/local.py
+++ b/gnuviechadmin/gnuviechadmin/settings/local.py
@@ -49,30 +49,13 @@ LOGGING['handlers'].update({
         'formatter': 'simple',
     }
 })
-LOGGING['loggers'].update({
-    'gnuviechadmin': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'dashboard': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'domains': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'gvacommon': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'gvawebcore': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'hostingpackages': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'managemails': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'osusers': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'taskresults': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'userdbs': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'websites': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-})
+LOGGING['loggers'].update(dict(
+    [(key, {'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,})
+        for key in [
+            'dashboard', 'domains', 'fileservertasks', 'gvacommon',
+            'gvawebcore', 'hostingpackages', 'ldaptasks', 'managemails',
+            'mysqltasks', 'osusers', 'pgsqltasks', 'taskresults',
+            'userdbs', 'websites']]))
 
 DEBUG_TOOLBAR_PATCH_SETTINGS = False
 
diff --git a/gnuviechadmin/ldaptasks/tasks.py b/gnuviechadmin/ldaptasks/tasks.py
index 72acd8d..c90dd4f 100644
--- a/gnuviechadmin/ldaptasks/tasks.py
+++ b/gnuviechadmin/ldaptasks/tasks.py
@@ -7,7 +7,6 @@ from __future__ import absolute_import
 
 from celery import shared_task
 
-
 @shared_task
 def create_ldap_group(groupname, gid, descr):
     """
diff --git a/gnuviechadmin/osusers/apps.py b/gnuviechadmin/osusers/apps.py
index 26f373d..0a9c739 100644
--- a/gnuviechadmin/osusers/apps.py
+++ b/gnuviechadmin/osusers/apps.py
@@ -4,6 +4,7 @@ This module contains the :py:class:`django.apps.AppConfig` instance for the
 
 """
 from __future__ import unicode_literals
+
 from django.apps import AppConfig
 from django.utils.translation import ugettext_lazy as _
 
@@ -15,3 +16,6 @@ class OsusersAppConfig(AppConfig):
     """
     name = 'osusers'
     verbose_name = _('Operating System Users and Groups')
+
+    def ready(self):
+        import osusers.signals
diff --git a/gnuviechadmin/osusers/models.py b/gnuviechadmin/osusers/models.py
index 1122ed6..6b4f2a2 100644
--- a/gnuviechadmin/osusers/models.py
+++ b/gnuviechadmin/osusers/models.py
@@ -10,9 +10,12 @@ import logging
 import os
 import six
 
+from celery import group
+
 from django.db import models, transaction
 from django.conf import settings
 from django.core.exceptions import ValidationError
+from django.dispatch import Signal
 from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext as _
@@ -24,28 +27,13 @@ from passlib.utils import generate_password
 
 from taskresults.models import TaskResult
 
-from ldaptasks.tasks import (
-    add_ldap_user_to_group,
-    create_ldap_group,
-    create_ldap_user,
-    delete_ldap_group,
-    delete_ldap_user,
-    remove_ldap_user_from_group,
-    set_ldap_user_password,
-)
-
-from fileservertasks.tasks import (
-    delete_file_mail_userdir,
-    delete_file_sftp_userdir,
-    set_file_ssh_authorized_keys,
-    setup_file_mail_userdir,
-    setup_file_sftp_userdir,
-)
-
 
 _LOGGER = logging.getLogger(__name__)
 
 
+password_set = Signal(providing_args=['instance', 'password'])
+
+
 CANNOT_USE_PRIMARY_GROUP_AS_ADDITIONAL = _(
     "You can not use a user's primary group.")
 
@@ -108,9 +96,6 @@ class Group(TimeStampedModel, models.Model):
 
         """
         super(Group, self).save(*args, **kwargs)
-        dn = create_ldap_group.delay(
-            self.groupname, self.gid, self.descr).get()
-        _LOGGER.info("created LDAP group with dn %s", dn)
         return self
 
     @transaction.atomic
@@ -124,10 +109,6 @@ class Group(TimeStampedModel, models.Model):
             :py:meth:`django.db.Model.delete`
 
         """
-        TaskResult.objects.create_task_result(
-            delete_ldap_group.delay(self.groupname),
-            'delete_ldap_group'
-        )
         super(Group, self).delete(*args, **kwargs)
 
 
@@ -249,25 +230,13 @@ class User(TimeStampedModel, models.Model):
         """
         if hasattr(self, 'shadow'):
             self.shadow.set_password(password)
-            success = set_ldap_user_password.delay(
-                self.username, password).get()
-            if success:
-                _LOGGER.info(
-                    "successfully set LDAP password for %s", self.username)
-            else:
-                _LOGGER.error(
-                    "setting the LDAP password for %s failed", self.username)
-            return success
         else:
             self.shadow = Shadow.objects.create_shadow(
                 user=self, password=password
             )
-            dn = create_ldap_user.delay(
-                self.username, self.uid, self.group.gid, self.gecos,
-                self.homedir, self.shell, password
-            ).get()
-            _LOGGER.info("set LDAP password for %s", dn)
-            return True
+        password_set.send(
+            sender=self.__class__, password=password, instance=self)
+        return True
 
     def is_sftp_user(self):
         return self.additionalgroup_set.filter(
@@ -288,22 +257,6 @@ class User(TimeStampedModel, models.Model):
         :rtype: :py:class:`osusers.models.User`
 
         """
-        dn = create_ldap_user.delay(
-            self.username, self.uid, self.group.gid, self.gecos,
-            self.homedir, self.shell, password=None).get()
-        TaskResult.objects.create_task_result(
-            setup_file_sftp_userdir.delay(self.username),
-            'setup_file_sftp_userdir'
-        )
-        TaskResult.objects.create_task_result(
-            setup_file_mail_userdir.delay(self.username),
-            'setup_file_mail_userdir'
-        )
-        _LOGGER.info(
-            "created user %(user)s with LDAP dn %(dn)s, scheduled home "
-            "directory and mail base directory creation.", {
-                'user': self, 'dn': dn,
-            })
         return super(User, self).save(*args, **kwargs)
 
     @transaction.atomic
@@ -318,18 +271,6 @@ class User(TimeStampedModel, models.Model):
             :py:meth:`django.db.Model.delete`
 
         """
-        TaskResult.objects.create_task_result(
-            delete_file_mail_userdir.delay(self.username),
-            'delete_file_mail_userdir'
-        )
-        TaskResult.objects.create_task_result(
-            delete_file_sftp_userdir.delay(self.username),
-            'delete_file_sftp_userdir'
-        )
-        for group in [ag.group for ag in self.additionalgroup_set.all()]:
-            remove_ldap_user_from_group.delay(
-                self.username, group.groupname).get()
-        delete_ldap_user.delay(self.username).get()
         self.group.delete()
         super(User, self).delete(*args, **kwargs)
 
@@ -460,8 +401,6 @@ class AdditionalGroup(TimeStampedModel, models.Model):
         :rtype: :py:class:`AdditionalGroup <osusers.models.AdditionalGroup>`
 
         """
-        add_ldap_user_to_group.delay(
-            self.user.username, self.group.groupname).get()
         return super(AdditionalGroup, self).save(*args, **kwargs)
 
     @transaction.atomic
@@ -474,11 +413,6 @@ class AdditionalGroup(TimeStampedModel, models.Model):
         :param kwargs: keyword arguments to be passed on to
             :py:meth:`django.db.Model.delete`
         """
-        TaskResult.objects.create_task_result(
-            remove_ldap_user_from_group.delay(
-                self.user.username, self.group.groupname),
-            'remove_ldap_user_from_group'
-        )
         super(AdditionalGroup, self).delete(*args, **kwargs)
 
 
@@ -583,24 +517,3 @@ class SshPublicKey(TimeStampedModel):
         return "{algorithm} {data} {comment}".format(
             algorithm=self.algorithm, data=self.data, comment=self.comment
         ).strip()
-
-    def save(self, **kwargs):
-        key = super(SshPublicKey, self).save(**kwargs)
-        TaskResult.objects.create_task_result(
-            set_file_ssh_authorized_keys.delay(
-                self.user.username, [
-                    str(key) for key in
-                    SshPublicKey.objects.filter(user=self.user)]),
-            'set_file_ssh_authorized_keys'
-        )
-        return key
-
-    def delete(self, **kwargs):
-        super(SshPublicKey, self).delete(**kwargs)
-        TaskResult.objects.create_task_result(
-            set_file_ssh_authorized_keys.delay(
-                self.user.username, [
-                    str(key) for key in
-                    SshPublicKey.objects.filter(user=self.user)]),
-            'set_file_ssh_authorized_keys'
-        )
diff --git a/gnuviechadmin/osusers/signals.py b/gnuviechadmin/osusers/signals.py
new file mode 100644
index 0000000..8796554
--- /dev/null
+++ b/gnuviechadmin/osusers/signals.py
@@ -0,0 +1,160 @@
+"""
+This module contains the signal handlers of the :py:mod:`osusers` app.
+
+"""
+from __future__ import absolute_import, unicode_literals
+
+import logging
+
+from django.db.models.signals import (
+    m2m_changed,
+    post_delete,
+    post_save,
+)
+from django.dispatch import receiver
+
+from celery import chain, group
+
+from fileservertasks.tasks import (
+    delete_file_mail_userdir,
+    delete_file_sftp_userdir,
+    set_file_ssh_authorized_keys,
+    setup_file_mail_userdir,
+    setup_file_sftp_userdir,
+)
+from ldaptasks.tasks import (
+    add_ldap_user_to_group,
+    create_ldap_group,
+    create_ldap_user,
+    delete_ldap_group,
+    delete_ldap_user,
+    remove_ldap_user_from_group,
+    set_ldap_user_password,
+)
+from taskresults.models import TaskResult
+
+from .models import (
+    AdditionalGroup,
+    Group,
+    SshPublicKey,
+    User,
+    password_set,
+)
+
+
+_LOGGER = logging.getLogger(__name__)
+
+
+@receiver(password_set, sender=User)
+def handle_user_password_set(sender, instance, password, **kwargs):
+    taskresult = TaskResult.objects.create_task_result(
+        'handle_user_password_set',
+        set_ldap_user_password.s(instance.username, password))
+    _LOGGER.info(
+        'LDAP password change has been requested in task %s',
+        taskresult.task_id)
+
+
+#@receiver(post_save)
+#def handle_post_save(sender, **kwargs):
+#    _LOGGER.debug(
+#        'handling post_save signal for %s with args %s',
+#        sender, kwargs)
+
+
+@receiver(post_save, sender=Group)
+def handle_group_created(sender, instance, created, **kwargs):
+    if created:
+        taskresult = TaskResult.objects.create_task_result(
+            'handle_group_created',
+            create_ldap_group.s(
+                instance.groupname, instance.gid, instance.descr))
+        _LOGGER.info(
+            'LDAP group creation has been requested in task %s',
+            taskresult.task_id)
+    _LOGGER.debug(
+        'group %s has been %s', instance, created and "created" or "updated")
+
+
+@receiver(post_save, sender=User)
+def handle_user_created(sender, instance, created, **kwargs):
+    if created:
+        chain = create_ldap_user.s(
+                instance.username, instance.uid, instance.group.gid,
+                instance.gecos, instance.homedir, instance.shell, None
+            ) | setup_file_sftp_userdir.s(instance.username
+            ) | setup_file_mail_userdir.s(instance.username)
+        taskresult = TaskResult.objects.create_task_result(
+            'handle_user_created', chain)
+        _LOGGER.info(
+            'LDAP user creation has been requested in task %s',
+            taskresult.task_id)
+    _LOGGER.debug(
+        'user %s has been %s', instance, created and "created" or "updated")
+
+
+@receiver(post_save, sender=AdditionalGroup)
+def handle_user_added_to_group(sender, instance, created, **kwargs):
+    if created:
+        taskresult = TaskResult.objects.create_task_result(
+            'handle_user_added_to_group',
+            add_ldap_user_to_group.s(
+                instance.user.username, instance.group.groupname))
+        _LOGGER.info(
+            'Adding user to LDAP group has been requested in task %s',
+            taskresult.task_id)
+
+
+@receiver(post_save, sender=SshPublicKey)
+@receiver(post_delete, sender=SshPublicKey)
+def handle_ssh_keys_changed(sender, instance, **kwargs):
+    sig = set_file_ssh_authorized_keys.s(
+        instance.user.username, [
+            str(key) for key in
+            SshPublicKey.objects.filter(user=instance.user)])
+    taskresult = TaskResult.objects.create_task_result(
+        'handle_ssh_keys_changed', sig)
+    _LOGGER.info(
+        'Change of SSH keys has been requested in task %s',
+        taskresult.task_id)
+
+
+#@receiver(post_delete)
+#def handle_post_delete(sender, **kwargs):
+#    _LOGGER.debug(
+#        'handling post_delete signal for %s with args %s',
+#        sender, kwargs)
+
+
+@receiver(post_delete, sender=Group)
+def handle_group_deleted(sender, instance, **kwargs):
+    taskresult = TaskResult.objects.create_task_result(
+        'handle_group_deleted',
+        delete_ldap_group.s(instance.groupname))
+    _LOGGER.info(
+        'LDAP group deletion has been requested in task %s',
+        taskresult.task_id)
+
+
+@receiver(post_delete, sender=User)
+def handle_user_deleted(sender, instance, **kwargs):
+    chain = delete_file_mail_userdir.s(instance.username
+        ) | delete_file_sftp_userdir.s(instance.username
+        ) | delete_ldap_user.s(instance.username)
+    _LOGGER.debug('chain signature %s', chain)
+    taskresult = TaskResult.objects.create_task_result(
+        'handle_user_deleted', chain)
+    _LOGGER.info(
+        'LDAP user deletion has been requested in task %s',
+        taskresult.task_id)
+
+
+@receiver(post_delete, sender=AdditionalGroup)
+def handle_user_removed_from_group(sender, instance, **kwargs):
+    taskresult = TaskResult.objects.create_task_result(
+        'handle_user_removed_from_group',
+        remove_ldap_user_from_group.s(
+            instance.user.username, instance.group.groupname))
+    _LOGGER.info(
+        'Removing user from LDAP group has been requested in task %s',
+        taskresult.task_id)
diff --git a/gnuviechadmin/osusers/tests/test_models.py b/gnuviechadmin/osusers/tests/test_models.py
index 1897234..4189904 100644
--- a/gnuviechadmin/osusers/tests/test_models.py
+++ b/gnuviechadmin/osusers/tests/test_models.py
@@ -128,8 +128,12 @@ class AdditionalGroupTest(TestCaseWithCeleryTasks):
         addgroup = AdditionalGroup(user=self.user, group=group2)
         addgroup.save()
         taskres = TaskResult.objects.all()
-        self.assertTrue(len(taskres), 1)
-        self.assertEqual(taskres[0].task_name, 'setup_file_sftp_userdir')
+        self.assertTrue(len(taskres), 4)
+        creators = [r.creator for r in taskres]
+        for tcount, tcreator in [
+                (2, 'handle_group_created'), (1, 'handle_user_created'),
+                (1, 'handle_user_added_to_group')]:
+            self.assertEqual(creators.count(tcreator), tcount)
 
     def test_delete(self):
         group2 = Group.objects.create(groupname='test2', gid=1001)
@@ -167,9 +171,9 @@ class GroupTest(TestCaseWithCeleryTasks):
         self.assertEqual(len(Group.objects.all()), 1)
         group.delete()
         self.assertEqual(len(Group.objects.all()), 0)
-        self.assertEqual(len(TaskResult.objects.all()), 1)
+        self.assertEqual(len(TaskResult.objects.all()), 2)
         tr = TaskResult.objects.first()
-        self.assertEqual(tr.task_name, 'delete_ldap_group')
+        self.assertEqual(tr.creator, 'handle_group_created')
 
 
 class ShadowManagerTest(TestCaseWithCeleryTasks):
@@ -275,10 +279,12 @@ class UserManagerTest(TestCaseWithCeleryTasks):
     def test_create_user_tasks(self):
         User.objects.create_user(customer=self.customer)
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 2)
-        tasknames = [r.task_name for r in taskres]
-        self.assertEqual(tasknames.count('setup_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('setup_file_mail_userdir'), 1)
+        self.assertEqual(len(taskres), 3)
+        creators = [r.creator for r in taskres]
+        for creator in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set']:
+            self.assertIn(creator, creators)
 
     def test_create_user_second(self):
         User.objects.create_user(customer=self.customer)
@@ -351,24 +357,26 @@ class UserTest(TestCaseWithCeleryTasks):
 
     def test_save(self):
         user = User.objects.create_user(self.customer)
-        TaskResult.objects.all().delete()
         user.save()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 2)
-        task_names = [r.task_name for r in taskres]
-        self.assertIn('setup_file_sftp_userdir', task_names)
-        self.assertIn('setup_file_mail_userdir', task_names)
+        self.assertEqual(len(taskres), 3)
+        creators = [r.creator for r in taskres]
+        for task in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set']:
+            self.assertIn(task, creators)
 
     def test_delete_only_user(self):
         user = User.objects.create_user(self.customer)
-        TaskResult.objects.all().delete()
         user.delete()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 3)
-        tasknames = [r.task_name for r in taskres]
-        self.assertEqual(tasknames.count('delete_file_mail_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_ldap_group'), 1)
+        self.assertEqual(len(taskres), 6)
+        creators = [r.creator for r in taskres]
+        for task in [
+                'handle_group_created', 'handle_user_created',
+                'handle_user_password_set', 'handle_user_deleted',
+                'handle_group_deleted', 'handle_user_deleted']:
+            self.assertIn(task, creators)
         self.assertEqual(len(User.objects.all()), 0)
 
     def test_delete_additional_groups(self):
@@ -381,11 +389,12 @@ class UserTest(TestCaseWithCeleryTasks):
         TaskResult.objects.all().delete()
         user.delete()
         taskres = TaskResult.objects.all()
-        self.assertEqual(len(taskres), 3)
-        tasknames = [t.task_name for t in taskres]
-        self.assertEqual(tasknames.count('delete_file_mail_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_file_sftp_userdir'), 1)
-        self.assertEqual(tasknames.count('delete_ldap_group'), 1)
+        self.assertEqual(len(taskres), 5)
+        creators = [t.creator for t in taskres]
+        for tcount, tcreator in [
+                (2, 'handle_user_removed_from_group'), (2, 'handle_user_deleted'),
+                (1, 'handle_group_deleted')]:
+            self.assertEqual(creators.count(tcreator), tcount)
         self.assertEqual(len(User.objects.all()), 0)
         self.assertEqual(len(AdditionalGroup.objects.all()), 0)
 
@@ -497,7 +506,7 @@ class SshPublicKeyTest(TestCaseWithCeleryTasks):
         taskresults = TaskResult.objects.all()
         self.assertEqual(len(taskresults), 1)
         self.assertEqual(
-            taskresults[0].task_name, 'set_file_ssh_authorized_keys')
+            taskresults[0].creator, 'handle_ssh_keys_changed')
 
     def test_call_tasks_on_delete(self):
         key = SshPublicKey.objects.create_ssh_public_key(
@@ -507,4 +516,4 @@ class SshPublicKeyTest(TestCaseWithCeleryTasks):
         taskresults = TaskResult.objects.all()
         self.assertEqual(len(taskresults), 1)
         self.assertEqual(
-            taskresults[0].task_name, 'set_file_ssh_authorized_keys')
+            taskresults[0].creator, 'handle_ssh_keys_changed')
diff --git a/gnuviechadmin/taskresults/migrations/0002_auto_20151011_2248.py b/gnuviechadmin/taskresults/migrations/0002_auto_20151011_2248.py
new file mode 100644
index 0000000..a13aee6
--- /dev/null
+++ b/gnuviechadmin/taskresults/migrations/0002_auto_20151011_2248.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('taskresults', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='taskresult',
+            name='task_name',
+        ),
+        migrations.AddField(
+            model_name='taskresult',
+            name='creator',
+            field=models.TextField(default='migrated', verbose_name='Task creator'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='taskresult',
+            name='notes',
+            field=models.TextField(default='', verbose_name='Task notes'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='taskresult',
+            name='signature',
+            field=models.TextField(default='', verbose_name='Task signature'),
+            preserve_default=False,
+        ),
+    ]
diff --git a/gnuviechadmin/taskresults/models.py b/gnuviechadmin/taskresults/models.py
index 7178c84..399505f 100644
--- a/gnuviechadmin/taskresults/models.py
+++ b/gnuviechadmin/taskresults/models.py
@@ -12,15 +12,21 @@ from gnuviechadmin.celery import app
 
 
 class TaskResultManager(models.Manager):
-    def create_task_result(self, asyncresult, name):
-        taskresult = self.create(task_id=asyncresult.id, task_name=name)
+    def create_task_result(self, creator, signature, notes=''):
+        sigstr = str(signature)
+        result = signature.apply_async()
+        taskresult = self.create(
+            task_id=result.task_id, creator=creator, signature=sigstr,
+            notes=notes)
         return taskresult
 
 
 @python_2_unicode_compatible
 class TaskResult(models.Model):
     task_id = models.CharField(_('Task id'), max_length=36)
-    task_name = models.CharField(_('Task name'), max_length=64)
+    signature = models.TextField(_('Task signature'))
+    creator = models.TextField(_('Task creator'))
+    notes = models.TextField(_('Task notes'))
     result = models.TextField(_('Task result'))
     finished = models.BooleanField(default=False)
     state = models.CharField(_('Task state'), max_length=16)
@@ -32,8 +38,8 @@ class TaskResult(models.Model):
         verbose_name_plural = _('Task results')
 
     def __str__(self):
-        return "{task_name} ({task_id}): {finished}".format(
-            task_name=self.task_name,
+        return "{creator} ({task_id}): {finished}".format(
+            creator=self.creator,
             task_id=self.task_id,
             finished=_('yes') if self.finished else _('no')
         )
@@ -41,7 +47,8 @@ class TaskResult(models.Model):
     def fetch_result(self):
         if not self.finished:
             ar = app.AsyncResult(self.task_id)
-            res = ar.get(no_ack=True, timeout=1)
-            self.result = str(res)
             self.state = ar.state
-            self.finished = True
+            if ar.ready():
+                res = ar.get()
+                self.result = str(res)
+                self.finished = True
diff --git a/gnuviechadmin/taskresults/tests/test_models.py b/gnuviechadmin/taskresults/tests/test_models.py
index dcace59..17b1aec 100644
--- a/gnuviechadmin/taskresults/tests/test_models.py
+++ b/gnuviechadmin/taskresults/tests/test_models.py
@@ -13,24 +13,30 @@ TEST_TASK_RESULT = '4ll y0ur b453 4r3 b3l0ng t0 u5'
 class TaskResultTest(TestCase):
     @patch('taskresults.models.app')
     def test_update_taskstatus_unfinished(self, app):
-        mock = MagicMock(id=TEST_TASK_UUID, task_name=TEST_TASK_NAME)
-        mock.ready.return_value = False
-        tr = TaskResult.objects.create_task_result(mock, TEST_TASK_NAME)
+        resultmock = MagicMock(task_id=TEST_TASK_UUID)
+        resultmock.ready.return_value = False
+        mock = MagicMock()
+        mock.apply_async.return_value = resultmock
+        tr = TaskResult.objects.create_task_result(TEST_TASK_NAME, mock)
         self.assertFalse(tr.finished)
         mymock = app.AsyncResult(TEST_TASK_UUID)
         mymock.state = 'SUCCESS'
         mymock.get.return_value = TEST_RESULT
         tr.fetch_result()
-        mymock.get.assert_called_with(no_ack=True, timeout=1)
+        mymock.get.assert_called_with()
         self.assertTrue(tr.finished)
 
     @patch('taskresults.models.app')
     def test_update_taskstatus_finished(self, app):
-        mock = MagicMock(id=TEST_TASK_UUID, task_name=TEST_TASK_NAME)
-        mock.ready.return_value = True
+        resultmock = MagicMock(task_id=TEST_TASK_UUID)
+        resultmock.ready.return_value = True
+        resultmock.state = 'SUCCESS'
+        resultmock.result = TEST_RESULT
+        mock = MagicMock()
+        mock.apply_async.return_value = resultmock
         mock.state = 'SUCCESS'
         mock.result = TEST_RESULT
-        tr = TaskResult.objects.create_task_result(mock, TEST_TASK_NAME)
+        tr = TaskResult.objects.create_task_result(TEST_TASK_NAME, mock)
         tr.fetch_result()
         self.assertTrue(tr.finished)
         mymock = app.AsyncResult(TEST_TASK_UUID)
@@ -47,8 +53,10 @@ TEST_RESULT.ready.return_value = False
 
 class TaskResultManagerTest(TestCase):
     def test_create_task_result(self):
-        mock = MagicMock(id=TEST_TASK_UUID)
-        tr = TaskResult.objects.create_task_result(mock, TEST_TASK_NAME)
+        resultmock = MagicMock(task_id=TEST_TASK_UUID)
+        mock = MagicMock()
+        mock.apply_async.return_value = resultmock
+        tr = TaskResult.objects.create_task_result(TEST_TASK_NAME, mock)
         self.assertIsInstance(tr, TaskResult)
         self.assertEqual(tr.task_id, TEST_TASK_UUID)
-        self.assertEqual(tr.task_name, TEST_TASK_NAME)
+        self.assertEqual(tr.creator, TEST_TASK_NAME)