ARGOMENTO: [10.0] Odoo worker e longpolling

2018-01-16 11:08:52,454 89476 ERROR termostore odoo.http: Exception during JSON request handling.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 640, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 677, in dispatch
    result = self._call_function(**self.params)
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 333, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/odoo/service/model.py", line 101, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 326, in checked_call
    result = self.endpoint(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 935, in __call__
    return self.method(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 506, in response_wrap
    response = f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/odoo/addons/bus/controllers/main.py", line 35, in poll
    raise Exception("bus.Bus unavailable")
Exception: bus.Bus unavailable
2018-01-16 11:08:52,454 89476 INFO termostore werkzeug: 93.46.182.146 - - [16/Jan/2018 11:08:52] "POST /longpolling/poll HTTP/1.1" 200 -

#odoo server
upstream odoo {
 server 127.0.0.1:8069;
}
upstream odoochat {
 server 127.0.0.1:8072;
}

# http -> https
server {
   listen 80;
   server_name odoo.mycompany.com;
   rewrite ^(.*) https://$host$1 permanent;
}

server {
 listen 443;
 server_name odoo.mycompany.com;
 proxy_read_timeout 720s;
 proxy_connect_timeout 720s;
 proxy_send_timeout 720s;

 # Add Headers for odoo proxy mode
 proxy_set_header X-Forwarded-Host $host;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_set_header X-Forwarded-Proto $scheme;
 proxy_set_header X-Real-IP $remote_addr;

 # SSL parameters
 ssl on;
 ssl_certificate /etc/ssl/nginx/server.crt;
 ssl_certificate_key /etc/ssl/nginx/server.key;
 ssl_session_timeout 30m;
 ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
 ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
 ssl_prefer_server_ciphers on;

 # log
 access_log /var/log/nginx/odoo.access.log;
 error_log /var/log/nginx/odoo.error.log;

 # Redirect requests to odoo backend server
 location / {
   proxy_redirect off;
   proxy_pass http://odoo;
 }
 location /longpolling {
     proxy_pass http://odoochat;
 }

 # common gzip
 gzip_types text/css text/less text/plain text/xml application/xml application/json application/javascript;
 gzip on;
}

[options]
addons_path = ***********************
admin_passwd = **********
csv_internal_sep = ,
data_dir = /var/lib/odoo/.local/share/Odoo
db_host = False
db_maxconn = 64
db_name = False
db_password = False
db_port = False
db_template = template1
db_user = odoo
dbfilter = .*
demo = {}
email_from = False
geoip_database = /usr/share/GeoIP/GeoLiteCity.dat
import_partial =
limit_memory_hard = 1677721600
limit_memory_soft = 629145600
limit_request = 8192
limit_time_cpu = 60
limit_time_real = 120
limit_time_real_cron = 240
list_db = True
log_db = False
log_db_level = warning
log_handler = :INFO
log_level = info
logfile = /var/log/odoo/odoo-server.log
logrotate = False
longpolling_port = 8072
max_cron_threads = 1
osv_memory_age_limit = 1.0
osv_memory_count_limit = False
pg_path = None
pidfile = None
proxy_mode = True
reportgz = False
server_wide_modules = web,web_kanban,queue_job
smtp_password = False
smtp_port = 25
smtp_server = localhost
smtp_ssl = False
smtp_user = False
syslog = False
test_commit = False
test_enable = False
test_file = False
test_report_directory = False
translate_modules = ['all']
unaccent = False
without_demo = False
workers = 5
xmlrpc = True
xmlrpc_interface =
xmlrpc_port = 8069