diff --git a/app/__init__.py b/app/__init__.py
index 75be421365c7219c3d4e9be150ad6436f24df36e..8a6b4325b05f524077898a7d5ec0754e131f858f 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -32,7 +32,8 @@ def create_app(config_name):
         app, message_queue=app.config['NOPAQUE_SOCKETIO_MESSAGE_QUEUE_URI'])
 
     with app.app_context():
-        from . import events
+        from . import socketio_events
+        from . import sqlalchemy_events
         from .admin import admin as admin_blueprint
         from .auth import auth as auth_blueprint
         from .corpora import corpora as corpora_blueprint
diff --git a/app/corpora/events.py b/app/corpora/events.py
index fd2285932de3dd6a28348a05267459ef4a5edf0c..9ee6896655dbba9b5cfbfebbe926afbf4492b14c 100644
--- a/app/corpora/events.py
+++ b/app/corpora/events.py
@@ -4,7 +4,7 @@ from flask_login import current_user
 from socket import gaierror
 from .. import db, socketio
 from ..decorators import socketio_login_required
-from ..events import socketio_sessions
+from ..socketio_events import socketio_sessions
 from ..models import Corpus
 import cqi
 import math
diff --git a/app/corpora/tasks.py b/app/corpora/tasks.py
index 3ad43740903cd72ef0f0904b9bae46efb0e1d0d5..f65a00de232626f581baf114c3ac915096d01e7d 100644
--- a/app/corpora/tasks.py
+++ b/app/corpora/tasks.py
@@ -1,4 +1,4 @@
-from .. import db, socketio
+from .. import db
 from ..decorators import background
 from ..models import Corpus, CorpusFile, QueryResult
 
@@ -12,11 +12,6 @@ def build_corpus(corpus_id, *args, **kwargs):
             raise Exception('Corpus {} not found'.format(corpus_id))
         corpus.build()
         db.session.commit()
-        event = 'user_{}_patch'.format(corpus.user_id)
-        jsonpatch = [{'op': 'replace', 'path': '/corpora/{}/last_edited_date'.format(corpus.id), 'value': corpus.last_edited_date.timestamp()},  # noqa
-                     {'op': 'replace', 'path': '/corpora/{}/status'.format(corpus.id), 'value': corpus.status}]  # noqa
-        room = 'user_{}'.format(corpus.user_id)
-        socketio.emit(event, jsonpatch, room=room)
 
 
 @background
@@ -25,12 +20,8 @@ def delete_corpus(corpus_id, *args, **kwargs):
         corpus = Corpus.query.get(corpus_id)
         if corpus is None:
             raise Exception('Corpus {} not found'.format(corpus_id))
-        event = 'user_{}_patch'.format(corpus.user_id)
-        jsonpatch = [{'op': 'remove', 'path': '/corpora/{}'.format(corpus.id)}]
-        room = 'user_{}'.format(corpus.user_id)
         corpus.delete()
         db.session.commit()
-        socketio.emit(event, jsonpatch, room=room)
 
 
 @background
@@ -39,13 +30,8 @@ def delete_corpus_file(corpus_file_id, *args, **kwargs):
         corpus_file = CorpusFile.query.get(corpus_file_id)
         if corpus_file is None:
             raise Exception('Corpus file {} not found'.format(corpus_file_id))
-        event = 'user_{}_patch'.format(corpus_file.corpus.user_id)
-        jsonpatch = [{'op': 'remove', 'path': '/corpora/{}/files/{}'.format(corpus_file.corpus_id, corpus_file.id)},  # noqa
-                     {'op': 'replace', 'path': '/corpora/{}/status'.format(corpus_file.corpus_id), 'value': corpus_file.corpus.status}]  # noqa
-        room = 'user_{}'.format(corpus_file.corpus.user_id)
         corpus_file.delete()
         db.session.commit()
-        socketio.emit(event, jsonpatch, room=room)
 
 
 @background
@@ -54,9 +40,5 @@ def delete_query_result(query_result_id, *args, **kwargs):
         query_result = QueryResult.query.get(query_result_id)
         if query_result is None:
             raise Exception('QueryResult {} not found'.format(query_result_id))
-        event = 'user_{}_patch'.format(query_result.user_id)
-        jsonpatch = [{'op': 'remove', 'path': '/query_results/{}'.format(query_result.id)}]  # noqa
-        room = 'user_{}'.format(query_result.user_id)
         query_result.delete()
         db.session.commit()
-        socketio.emit(event, jsonpatch, room=room)
diff --git a/app/corpora/views.py b/app/corpora/views.py
index 2e740cd6c31ba92fca3fbd6b6adad972be152168..32b20702fa1a297048dace0efb706ca8af56e88e 100644
--- a/app/corpora/views.py
+++ b/app/corpora/views.py
@@ -8,7 +8,7 @@ from .forms import (AddCorpusFileForm, AddCorpusForm, AddQueryResultForm,
                     DisplayOptionsForm, InspectDisplayOptionsForm,
                     ImportCorpusForm)
 from jsonschema import validate
-from .. import db, socketio
+from .. import db
 from ..models import Corpus, CorpusFile, QueryResult
 import json
 import logging
@@ -40,10 +40,6 @@ def add_corpus():
         else:
             db.session.commit()
             flash('Corpus "{}" added!'.format(corpus.title), 'corpus')
-            event = 'user_{}_patch'.format(corpus.user_id)
-            jsonpatch = [{'op': 'add', 'path': '/corpora/{}'.format(corpus.id), 'value': corpus.to_dict()}]  # noqa
-            room = 'user_{}'.format(corpus.user_id)
-            socketio.emit(event, jsonpatch, room=room)
             return redirect(url_for('.corpus', corpus_id=corpus.id))
     return render_template('corpora/add_corpus.html.j2', form=form,
                            title='Add corpus')
@@ -106,10 +102,6 @@ def import_corpus():
             db.session.commit()
             os.remove(archive_file)
             flash('Corpus "{}" imported!'.format(corpus.title), 'corpus')
-            event = 'user_{}_patch'.format(corpus.user_id)
-            jsonpatch = [{'op': 'add', 'path': '/corpora/{}'.format(corpus.id), 'value': corpus.to_dict()}]  # noqa
-            room = 'user_{}'.format(corpus.user_id)
-            socketio.emit(event, jsonpatch, room=room)
             return make_response(
                 {'redirect_url': url_for('.corpus', corpus_id=corpus.id)}, 201)
         else:
@@ -212,11 +204,6 @@ def add_corpus_file(corpus_id):
         corpus.status = 'unprepared'
         db.session.commit()
         flash('Corpus file "{}" added!'.format(corpus_file.filename), 'corpus')
-        event = 'user_{}_patch'.format(corpus.user_id)
-        jsonpatch = [{'op': 'replace', 'path': '/corpora/{}/status'.format(corpus.id), 'value': corpus.status},  # noqa
-                     {'op': 'add', 'path': '/corpora/{}/files/{}'.format(corpus.id, corpus_file.id), 'value': corpus_file.to_dict()}]  # noqa
-        room = 'user_{}'.format(corpus.user_id)
-        socketio.emit(event, jsonpatch, room=room)
         return make_response({'redirect_url': url_for('.corpus', corpus_id=corpus.id)}, 201)  # noqa
     return render_template('corpora/add_corpus_file.html.j2', corpus=corpus,
                            form=form, title='Add corpus file')
@@ -356,10 +343,6 @@ def add_query_result():
         query_result_file_content.pop('cpos_lookup')
         query_result.query_metadata = query_result_file_content
         db.session.commit()
-        event = 'user_{}_patch'.format(query_result.user_id)
-        jsonpatch = [{'op': 'add', 'path': '/query_results/{}'.format(query_result.id), 'value': query_result.to_dict()}]  # noqa
-        room = 'user_{}'.format(query_result.user_id)
-        socketio.emit(event, jsonpatch, room=room)
         flash('Query result added!', 'result')
         return make_response({'redirect_url': url_for('.query_result', query_result_id=query_result.id)}, 201)  # noqa
     return render_template('corpora/query_results/add_query_result.html.j2',
diff --git a/app/jobs/tasks.py b/app/jobs/tasks.py
index fb4223b84f559d31995e0e1b98a59170cf47ab1c..08c2aa225f59f727053a2cea74480daacbc26ffa 100644
--- a/app/jobs/tasks.py
+++ b/app/jobs/tasks.py
@@ -1,4 +1,4 @@
-from .. import db, socketio
+from .. import db
 from ..decorators import background
 from ..models import Job
 
@@ -9,12 +9,8 @@ def delete_job(job_id, *args, **kwargs):
         job = Job.query.get(job_id)
         if job is None:
             raise Exception('Job {} not found'.format(job_id))
-        event = 'user_{}_patch'.format(job.user_id)
-        jsonpatch = [{'op': 'remove', 'path': '/jobs/{}'.format(job.id)}]
-        room = 'user_{}'.format(job.user_id)
         job.delete()
         db.session.commit()
-        socketio.emit(event, jsonpatch, room=room)
 
 
 @background
@@ -29,8 +25,3 @@ def restart_job(job_id, *args, **kwargs):
             pass
         else:
             db.session.commit()
-            event = 'user_{}_patch'.format(job.user_id)
-            jsonpatch = [{'op': 'replace', 'path': '/jobs/{}/end_date'.format(job.id), 'value': job.end_date.timestamp()},  # noqa
-                         {'op': 'replace', 'path': '/jobs/{}/status'.format(job.id), 'value': job.status}]  # noqa
-            room = 'user_{}'.format(job.user_id)
-            socketio.emit(event, jsonpatch, room=room)
diff --git a/app/models.py b/app/models.py
index ba139e9196a78130686c2146bc30a14290ca07f1..a67c6975ac5d65402be2695f3486610f899f8360 100644
--- a/app/models.py
+++ b/app/models.py
@@ -151,25 +151,31 @@ class User(UserMixin, db.Model):
     def password(self, password):
         self.password_hash = generate_password_hash(password)
 
-    def to_dict(self):
-        return {'id': self.id,
-                'role_id': self.role_id,
-                'confirmed': self.confirmed,
-                'email': self.email,
-                'last_seen': self.last_seen.timestamp(),
-                'member_since': self.member_since.timestamp(),
-                'settings': {'dark_mode': self.setting_dark_mode,
-                             'job_status_mail_notifications':
-                                 self.setting_job_status_mail_notifications,
-                             'job_status_site_notifications':
-                                 self.setting_job_status_site_notifications},
-                'username': self.username,
-                'corpora': {corpus.id: corpus.to_dict()
-                            for corpus in self.corpora},
-                'jobs': {job.id: job.to_dict() for job in self.jobs},
-                'query_results': {query_result.id: query_result.to_dict()
-                                  for query_result in self.query_results},
-                'role': self.role.to_dict()}
+    def to_dict(self, include_relationships=True):
+        dict_user = {
+            'id': self.id,
+            'role_id': self.role_id,
+            'confirmed': self.confirmed,
+            'email': self.email,
+            'last_seen': self.last_seen.timestamp(),
+            'member_since': self.member_since.timestamp(),
+            'settings': {'dark_mode': self.setting_dark_mode,
+                         'job_status_mail_notifications':
+                             self.setting_job_status_mail_notifications,
+                         'job_status_site_notifications':
+                             self.setting_job_status_site_notifications},
+            'username': self.username,
+            'role': self.role.to_dict()
+        }
+        if include_relationships:
+            dict_user['corpora'] = {corpus.id: corpus.to_dict()
+                                    for corpus in self.corpora}
+            dict_user['jobs'] = {job.id: job.to_dict() for job in self.jobs}
+            dict_user['query_results'] = {
+                query_result.id: query_result.to_dict()
+                for query_result in self.query_results
+            }
+        return dict_user
 
     def __repr__(self):
         '''
@@ -301,7 +307,7 @@ class JobInput(db.Model):
         '''
         return '<JobInput {}>'.format(self.filename)
 
-    def to_dict(self):
+    def to_dict(self, include_relationships=True):
         return {'download_url': self.download_url,
                 'url': self.url,
                 'id': self.id,
@@ -341,7 +347,7 @@ class JobResult(db.Model):
         '''
         return '<JobResult {}>'.format(self.filename)
 
-    def to_dict(self):
+    def to_dict(self, include_relationships=True):
         return {'download_url': self.download_url,
                 'url': self.url,
                 'id': self.id,
@@ -420,22 +426,26 @@ class Job(db.Model):
         self.end_date = None
         self.status = 'submitted'
 
-    def to_dict(self):
-        return {'url': self.url,
-                'id': self.id,
-                'user_id': self.user_id,
-                'creation_date': self.creation_date.timestamp(),
-                'description': self.description,
-                'end_date': (self.end_date.timestamp() if self.end_date else
-                             None),
-                'service': self.service,
-                'service_args': self.service_args,
-                'service_version': self.service_version,
-                'status': self.status,
-                'title': self.title,
-                'inputs': {input.id: input.to_dict() for input in self.inputs},
-                'results': {result.id: result.to_dict()
-                            for result in self.results}}
+    def to_dict(self, include_relationships=True):
+        dict_job = {
+            'url': self.url,
+            'id': self.id,
+            'user_id': self.user_id,
+            'creation_date': self.creation_date.timestamp(),
+            'description': self.description,
+            'end_date': self.end_date.timestamp() if self.end_date else None,
+            'service': self.service,
+            'service_args': self.service_args,
+            'service_version': self.service_version,
+            'status': self.status,
+            'title': self.title,
+        }
+        if include_relationships:
+            dict_job['inputs'] = {input.id: input.to_dict()
+                                  for input in self.inputs}
+            dict_job['results'] = {result.id: result.to_dict()
+                                   for result in self.results}
+        return dict_job
 
 
 class CorpusFile(db.Model):
@@ -485,7 +495,7 @@ class CorpusFile(db.Model):
         db.session.delete(self)
         self.corpus.status = 'unprepared'
 
-    def to_dict(self):
+    def to_dict(self, include_relationships=True):
         return {'download_url': self.download_url,
                 'url': self.url,
                 'id': self.id,
@@ -539,19 +549,24 @@ class Corpus(db.Model):
     def url(self):
         return url_for('corpora.corpus', corpus_id=self.id)
 
-    def to_dict(self):
-        return {'analysis_url': self.analysis_url,
-                'url': self.url,
-                'id': self.id,
-                'user_id': self.user_id,
-                'creation_date': self.creation_date.timestamp(),
-                'current_nr_of_tokens': self.current_nr_of_tokens,
-                'description': self.description,
-                'status': self.status,
-                'last_edited_date': self.last_edited_date.timestamp(),
-                'max_nr_of_tokens': self.max_nr_of_tokens,
-                'title': self.title,
-                'files': {file.id: file.to_dict() for file in self.files}}
+    def to_dict(self, include_relationships=True):
+        dict_corpus = {
+            'analysis_url': self.analysis_url,
+            'url': self.url,
+            'id': self.id,
+            'user_id': self.user_id,
+            'creation_date': self.creation_date.timestamp(),
+            'current_nr_of_tokens': self.current_nr_of_tokens,
+            'description': self.description,
+            'status': self.status,
+            'last_edited_date': self.last_edited_date.timestamp(),
+            'max_nr_of_tokens': self.max_nr_of_tokens,
+            'title': self.title,
+        }
+        if include_relationships:
+            dict_corpus['files'] = {file.id: file.to_dict()
+                                    for file in self.files}
+        return dict_corpus
 
     def build(self):
         output_dir = os.path.join(self.path, 'merged')
@@ -628,7 +643,7 @@ class QueryResult(db.Model):
         shutil.rmtree(self.path, ignore_errors=True)
         db.session.delete(self)
 
-    def to_dict(self):
+    def to_dict(self, include_relationships=True):
         return {'download_url': self.download_url,
                 'url': self.url,
                 'id': self.id,
diff --git a/app/services/views.py b/app/services/views.py
index 62af71f91b8dbeb77cb480a22bdb998e67273fc2..75712b34e8c1ca1861b27d946da8ddf97abff37a 100644
--- a/app/services/views.py
+++ b/app/services/views.py
@@ -4,7 +4,7 @@ from flask_login import current_user, login_required
 from werkzeug.utils import secure_filename
 from . import services
 from . import SERVICES
-from .. import db, socketio
+from .. import db
 from .forms import AddJobForms
 from ..models import Job, JobInput
 import json
@@ -69,10 +69,6 @@ def service(service):
             job.status = 'submitted'
             db.session.commit()
             flash('Job "{}" added'.format(job.title), 'job')
-            event = 'user_{}_patch'.format(job.user_id)
-            jsonpatch = [{'op': 'add', 'path': '/jobs/{}'.format(job.id), 'value': job.to_dict()}]  # noqa
-            room = 'user_{}'.format(job.user_id)
-            socketio.emit(event, jsonpatch, room=room)
             return make_response(
                 {'redirect_url': url_for('jobs.job', job_id=job.id)}, 201)
     return render_template('services/{}.html.j2'.format(service.replace('-', '_')),
diff --git a/app/events.py b/app/socketio_events.py
similarity index 100%
rename from app/events.py
rename to app/socketio_events.py
index 72cdef66f1463644fc7c1f939492c18652b2257b..f03e194c60cb99431a209ee4e778e4e18de0f69b 100644
--- a/app/events.py
+++ b/app/socketio_events.py
@@ -6,9 +6,6 @@ from .decorators import socketio_login_required
 from .models import User
 
 
-###############################################################################
-# Socket.IO event handlers                                                    #
-###############################################################################
 '''
 ' A list containing session ids of connected Socket.IO sessions, to keep track
 ' of all connected sessions, which can be used to determine the runtimes of
@@ -17,6 +14,9 @@ from .models import User
 socketio_sessions = []
 
 
+###############################################################################
+# Socket.IO event handlers                                                    #
+###############################################################################
 @socketio.on('connect')
 @socketio_login_required
 def socketio_connect():
diff --git a/app/sqlalchemy_events.py b/app/sqlalchemy_events.py
new file mode 100644
index 0000000000000000000000000000000000000000..54737a5220b1bd1cd62572dc4e208eb3ace9ef5b
--- /dev/null
+++ b/app/sqlalchemy_events.py
@@ -0,0 +1,112 @@
+from datetime import datetime
+from . import db, socketio
+from .models import Corpus, CorpusFile, Job, JobInput, JobResult
+
+
+###############################################################################
+# SQLAlchemy event handlers                                                   #
+###############################################################################
+@db.event.listens_for(Corpus, 'after_delete')
+@db.event.listens_for(CorpusFile, 'after_delete')
+@db.event.listens_for(Job, 'after_delete')
+@db.event.listens_for(JobInput, 'after_delete')
+@db.event.listens_for(JobResult, 'after_delete')
+def ressource_after_delete(mapper, connection, ressource):
+    if isinstance(ressource, Corpus):
+        user_id = ressource.creator.id
+        path = '/corpora/{}'.format(ressource.id)
+    elif isinstance(ressource, CorpusFile):
+        user_id = ressource.corpus.creator.id
+        path = '/corpora/{}/files/{}'.format(ressource.corpus.id, ressource.id)
+    elif isinstance(ressource, Job):
+        user_id = ressource.creator.id
+        path = '/jobs/{}'.format(ressource.id)
+    elif isinstance(ressource, JobInput):
+        user_id = ressource.job.creator.id
+        path = '/jobs/{}/inputs/{}'.format(ressource.job.id, ressource.id)
+    elif isinstance(ressource, JobResult):
+        user_id = ressource.job.creator.id
+        path = '/jobs/{}/results/{}'.format(ressource.job.id, ressource.id)
+    event = 'user_{}_patch'.format(user_id)
+    jsonpatch = [{'op': 'remove', 'path': path}]
+    room = 'user_{}'.format(user_id)
+    socketio.emit(event, jsonpatch, room=room)
+
+@db.event.listens_for(Corpus, 'after_insert')
+@db.event.listens_for(CorpusFile, 'after_insert')
+@db.event.listens_for(Job, 'after_insert')
+@db.event.listens_for(JobInput, 'after_insert')
+@db.event.listens_for(JobResult, 'after_insert')
+def ressource_after_insert_handler(mapper, connection, ressource):
+    if isinstance(ressource, Corpus):
+        user_id = ressource.creator.id
+        path = '/corpora/{}'.format(ressource.id)
+    elif isinstance(ressource, CorpusFile):
+        user_id = ressource.corpus.creator.id
+        path = '/corpora/{}/files/{}'.format(ressource.corpus.id, ressource.id)
+    elif isinstance(ressource, Job):
+        user_id = ressource.creator.id
+        path = '/jobs/{}'.format(ressource.id)
+    elif isinstance(ressource, JobInput):
+        user_id = ressource.job.creator.id
+        path = '/jobs/{}/inputs/{}'.format(ressource.job.id, ressource.id)
+    elif isinstance(ressource, JobResult):
+        user_id = ressource.job.creator.id
+        path = '/jobs/{}/results/{}'.format(ressource.job.id, ressource.id)
+    event = 'user_{}_patch'.format(user_id)
+    jsonpatch = [
+        {
+            'op': 'add',
+            'path': path,
+            'value': ressource.to_dict(include_relationships=False)
+        }
+    ]
+    room = 'user_{}'.format(user_id)
+    socketio.emit(event, jsonpatch, room=room)
+
+@db.event.listens_for(Corpus, 'after_update')
+@db.event.listens_for(CorpusFile, 'after_update')
+@db.event.listens_for(Job, 'after_update')
+@db.event.listens_for(JobInput, 'after_update')
+@db.event.listens_for(JobResult, 'after_update')
+def ressource_after_update_handler(mapper, connection, ressource):
+    if isinstance(ressource, Corpus):
+        user_id = ressource.creator.id
+        base_path = '/corpora/{}'.format(ressource.id)
+    elif isinstance(ressource, CorpusFile):
+        user_id = ressource.corpus.creator.id
+        base_path = '/corpora/{}/files/{}'.format(ressource.corpus.id,
+                                                  ressource.id)
+    elif isinstance(ressource, Job):
+        user_id = ressource.creator.id
+        base_path = '/jobs/{}'.format(ressource.id)
+    elif isinstance(ressource, JobInput):
+        user_id = ressource.job.creator.id
+        base_path = '/jobs/{}/inputs/{}'.format(ressource.job.id, ressource.id)
+    elif isinstance(ressource, JobResult):
+        user_id = ressource.job.creator.id
+        base_path = '/jobs/{}/results/{}'.format(ressource.job.id,
+                                                 ressource.id)
+    jsonpatch = []
+    for attr in db.inspect(ressource).attrs:
+        # We don't want to emit changes about relationship fields
+        if attr.key in ['files', 'inputs', 'results']:
+            continue
+        history = attr.load_history()
+        if not history.has_changes():
+            continue
+        new_value = history.added[0]
+        # DateTime attributes must be converted to a timestamp
+        if isinstance(new_value, datetime):
+            new_value = new_value.timestamp()
+        jsonpatch.append(
+            {
+                'op': 'replace',
+                'path': '{}/{}'.format(base_path, attr.key),
+                'value': new_value
+            }
+        )
+    if jsonpatch:
+        event = 'user_{}_patch'.format(user_id)
+        room = 'user_{}'.format(user_id)
+        socketio.emit(event, jsonpatch, room=room)
diff --git a/app/tasks/__init__.py b/app/tasks/__init__.py
index 3e6f7354afa2d25f9b8de04b07d35a78101da398..69096a7bd0fbc97585504e4d6c14e343221e15b1 100644
--- a/app/tasks/__init__.py
+++ b/app/tasks/__init__.py
@@ -7,48 +7,8 @@ import docker
 class TaskRunner(CheckCorporaMixin, CheckJobsMixin):
     def __init__(self):
         self.docker = docker.from_env()
-        self._socketio_message_buffer = {}
 
     def run(self):
         self.check_corpora()
         self.check_jobs()
         db.session.commit()
-        self.flush_socketio_messages()
-
-    def buffer_socketio_message(self, event, payload, room,
-                                msg_id=None, override_policy='replace'):
-        if room not in self._socketio_message_buffer:
-            self._socketio_message_buffer[room] = {}
-        if event not in self._socketio_message_buffer[room]:
-            self._socketio_message_buffer[room][event] = {}
-        if msg_id is None:
-            msg_id = len(self._socketio_message_buffer[room][event].keys())
-        if override_policy == 'append':
-            if msg_id in self._socketio_message_buffer[room][event]:
-                # If the current message value isn't a list, convert it!
-                if not isinstance(self._socketio_message_buffer[room][event][msg_id], list):  # noqa
-                    self._socketio_message_buffer[room][event][msg_id] = [self._socketio_message_buffer[room][event][msg_id]]  # noqa
-            else:
-                self._socketio_message_buffer[room][event][msg_id] = []
-            self._socketio_message_buffer[room][event][msg_id].append(payload)
-        elif override_policy == 'replace':
-            self._socketio_message_buffer[room][event][msg_id] = payload
-        else:
-            raise Exception('Unknown override policy: {}'.format(override_policy))  # noqa
-        return msg_id
-
-    def buffer_user_patch_operation(self, ressource, patch_operation):
-        self.buffer_socketio_message('user_{}_patch'.format(ressource.user_id),
-                                     patch_operation,
-                                     'user_{}'.format(ressource.user_id),
-                                     msg_id='_', override_policy='append')
-
-    def clear_socketio_message_buffer(self):
-        self._socketio_message_buffer = {}
-
-    def flush_socketio_messages(self):
-        for room in self._socketio_message_buffer:
-            for event in self._socketio_message_buffer[room]:
-                for message in self._socketio_message_buffer[room][event]:
-                    socketio.emit(event, self._socketio_message_buffer[room][event][message], room=room)  # noqa
-        self.clear_socketio_message_buffer()
diff --git a/app/tasks/corpus_utils.py b/app/tasks/corpus_utils.py
index 9e8dbb043b5bfcc02f99fb65699384514763dcd4..3c7aeaa737b034aa525084abc068f1ab10d0cb96 100644
--- a/app/tasks/corpus_utils.py
+++ b/app/tasks/corpus_utils.py
@@ -85,12 +85,6 @@ class CheckCorporaMixin:
             )
         else:
             corpus.status = 'queued'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
 
     def checkout_build_corpus_service(self, corpus):
         service_name = 'build-corpus_{}'.format(corpus.id)
@@ -103,12 +97,6 @@ class CheckCorporaMixin:
                 + '(corpus.status: {} -> failed)'.format(corpus.status)
             )
             corpus.status = 'failed'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
         except docker.errors.APIError as e:
             logging.error(
                 'Get "{}" service raised '.format(service_name)
@@ -128,12 +116,6 @@ class CheckCorporaMixin:
             task_state = service_tasks[0].get('Status').get('State')
             if corpus.status == 'queued' and task_state != 'pending':
                 corpus.status = 'running'
-                patch_operation = {
-                    'op': 'replace',
-                    'path': '/corpora/{}/status'.format(corpus.id),
-                    'value': corpus.status
-                }
-                self.buffer_user_patch_operation(corpus, patch_operation)
             elif (corpus.status == 'running'
                   and task_state in ['complete', 'failed']):
                 try:
@@ -148,12 +130,6 @@ class CheckCorporaMixin:
                 else:
                     corpus.status = \
                         'prepared' if task_state == 'complete' else 'failed'
-                    patch_operation = {
-                        'op': 'replace',
-                        'path': '/corpora/{}/status'.format(corpus.id),
-                        'value': corpus.status
-                    }
-                    self.buffer_user_patch_operation(corpus, patch_operation)
 
     def create_cqpserver_container(self, corpus):
         ''' # Docker container settings # '''
@@ -214,12 +190,6 @@ class CheckCorporaMixin:
                 + 'non-zero exit code and detach is False.'
             )
             corpus.status = 'failed'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
         except docker.errors.ImageNotFound:
             logging.error(
                 'Run "{}" container raised '.format(name)
@@ -227,12 +197,6 @@ class CheckCorporaMixin:
                 + 'exist.'
             )
             corpus.status = 'failed'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
         except docker.errors.APIError as e:
             logging.error(
                 'Run "{}" container raised '.format(name)
@@ -241,12 +205,6 @@ class CheckCorporaMixin:
             )
         else:
             corpus.status = 'analysing'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
 
     def checkout_analysing_corpus_container(self, corpus):
         container_name = 'cqpserver_{}'.format(corpus.id)
@@ -255,12 +213,6 @@ class CheckCorporaMixin:
         except docker.errors.NotFound:
             logging.error('Could not find "{}" but the corpus state is "analysing".')  # noqa
             corpus.status = 'prepared'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/corpora/{}/status'.format(corpus.id),
-                'value': corpus.status
-            }
-            self.buffer_user_patch_operation(corpus, patch_operation)
         except docker.errors.APIError as e:
             logging.error(
                 'Get "{}" container raised '.format(container_name)
@@ -293,9 +245,3 @@ class CheckCorporaMixin:
                 )
                 return
         corpus.status = 'prepared'
-        patch_operation = {
-            'op': 'replace',
-            'path': '/corpora/{}/status'.format(corpus.id),
-            'value': corpus.status
-        }
-        self.buffer_user_patch_operation(corpus, patch_operation)
diff --git a/app/tasks/job_utils.py b/app/tasks/job_utils.py
index ee804bbc3dd049ca24804cfc9ee2ef5f85a58ecb..f1a2b6a8252cdd52451bb07b46554b0358822417 100644
--- a/app/tasks/job_utils.py
+++ b/app/tasks/job_utils.py
@@ -105,12 +105,6 @@ class CheckJobsMixin:
             return
         else:
             job.status = 'queued'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/jobs/{}/status'.format(job.id),
-                'value': job.status
-            }
-            self.buffer_user_patch_operation(job, patch_operation)
         finally:
             self.send_job_notification(job)
 
@@ -125,12 +119,6 @@ class CheckJobsMixin:
                 + '(job.status: {} -> failed)'.format(job.status)
             )
             job.status = 'failed'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/jobs/{}/status'.format(job.id),
-                'value': job.status
-            }
-            self.buffer_user_patch_operation(job, patch_operation)
         except docker.errors.APIError as e:
             logging.error(
                 'Get "{}" service raised '.format(service_name)
@@ -152,12 +140,6 @@ class CheckJobsMixin:
             task_state = service_tasks[0].get('Status').get('State')
             if job.status == 'queued' and task_state != 'pending':
                 job.status = 'running'
-                patch_operation = {
-                    'op': 'replace',
-                    'path': '/jobs/{}/status'.format(job.id),
-                    'value': job.status
-                }
-                self.buffer_user_patch_operation(job, patch_operation)
             elif job.status == 'running' and task_state in ['complete', 'failed']:  # noqa
                 try:
                     service.remove()
@@ -178,26 +160,8 @@ class CheckJobsMixin:
                             db.session.add(job_result)
                             db.session.flush()
                             db.session.refresh(job_result)
-                            patch_operation = {
-                                'op': 'add',
-                                'path': '/jobs/{}/results/{}'.format(job.id, job_result.id),  # noqa
-                                'value': job_result.to_dict()
-                            }
-                            self.buffer_user_patch_operation(job, patch_operation)  # noqa
                     job.end_date = datetime.utcnow()
-                    patch_operation = {
-                        'op': 'replace',
-                        'path': '/jobs/{}/end_date'.format(job.id),
-                        'value': job.end_date.timestamp()
-                    }
-                    self.buffer_user_patch_operation(job, patch_operation)
                     job.status = task_state
-                    patch_operation = {
-                        'op': 'replace',
-                        'path': '/jobs/{}/status'.format(job.id),
-                        'value': job.status
-                    }
-                    self.buffer_user_patch_operation(job, patch_operation)
         finally:
             self.send_job_notification(job)
 
@@ -207,12 +171,6 @@ class CheckJobsMixin:
             service = self.docker.services.get(service_name)
         except docker.errors.NotFound:
             job.status = 'canceled'
-            patch_operation = {
-                'op': 'replace',
-                'path': '/jobs/{}/status'.format(job.id),
-                'value': job.status
-            }
-            self.buffer_user_patch_operation(job, patch_operation)
         except docker.errors.APIError as e:
             logging.error(
                 'Get "{}" service raised '.format(service_name)