1) I followed this instruction guide step by step! 

2) I installed devstack with enabled ceilometer (and gnocchi as backend)

but after both tries mentioned above, i did not see any metric.

I also changed the publisher from gnocchi:// into file:// but the result did not change.

cat /etc/ceilometer/ceilometer.conf:

[DEFAULT]
transport_url = rabbit://stackrabbit:bsvbr5pzLpN0szN84v3m@127.0.0.1:5672/
use_syslog = True

[oslo_messaging_notifications]
topics = notifications
driver = messagingv2

[coordination]
backend_url = redis://localhost:6379

[notification]
workers = 4

[cache]
backend_argument = url:redis://localhost:6379
backend_argument = distributed_lock:True
backend_argument = db:0
backend_argument = redis_expiration_time:600
backend = dogpile.cache.redis
enabled = True

[service_credentials]
auth_url = http://127.0.0.1/identity
region_name = RegionOne
password = bsvbr5pzLpN0szN84v3m
username = ceilometer
project_name = service
project_domain_id = default
user_domain_id = default
auth_type = password

[keystone_authtoken]
memcached_servers = localhost:11211
cafile = /opt/stack/data/ca-bundle.pem
project_domain_name = Default
project_name = service
user_domain_name = Default
password = bsvbr5pzLpN0szN84v3m
username = ceilometer
auth_url = http://127.0.0.1/identity
interface = public
auth_type = password

_________________________________________

cat /etc/ceilometer/pipeline.yaml:

---
sources:
    - name: meter_source
      meters:
          - "*"
      sinks:
          - meter_sink
sinks:
    - name: meter_sink
      publishers:
          - file:///tmp/ceilofile?json
#          - gnocchi://?archive_policy=low&filter_project=service

____________________________

cat /etc/ceilometer/polling.yaml
---
sources:
    - name: all_pollsters
      interval: 300
      meters:
        - "*"

_____________________________

root@os-aio:/# cat /etc/gnocchi/gnocchi.conf

[DEFAULT]
debug = True
coordination_url = redis://localhost:6379

[indexer]
url = mysql+pymysql://root:bsvbr5pzLpN0szN84v3m@127.0.0.1/gnocchi?charset=utf8

[storage]
redis_url = redis://localhost:6379
driver = redis

[metricd]
metric_processing_delay = 5

[api]
auth_mode = keystone

[keystone_authtoken]
memcached_servers = localhost:11211
cafile = /opt/stack/data/ca-bundle.pem
project_domain_name = Default
project_name = service
user_domain_name = Default
password = bsvbr5pzLpN0szN84v3m
username = gnocchi
auth_url = http://127.0.0.1/identity
interface = public
auth_type = password