osprofiler not working, only for cinder

[Emre Ates]

I'm using stable/pike and devstack to set up openstack, and I'm not getting any traces from cinder using osprofiler.

The RequestContextSerializer in cinder/rpc.py is trying to find a "trace_info" in context; however there is no such field in context. An example context that I'm getting is here:

{u'domain': None, u'project_domain': None, u'auth_token': None, u'resource_uuid': None, u'read_only': False, u'user_id': None, u'user_identity': u'- - - - -', u'is_admin_project': True, u'tenant': None, u'project_id': None, u'project_name': None, u'global_request_id': None, u'timestamp': u'2018-10-09T17:54:07.580181', u'remote_address': None, u'quota_class': None, u'is_admin': True, u'user': None, u'service_catalog': [], u'read_deleted': u'no', u'show_deleted': False, u'roles': [u'admin'], u'request_id': u'req-1fc58e2e-f089-49ce-86bb-ed42c2534677', u'user_domain': None}

I have osprofiler enabled in /etc/cinder/cinder.conf, and I'm getting spans from other services such as nova or neutron. The commands I'm using to test this are "openstack volume list" and "openstack server create".

[Sean McGinnis (sean-mcginnis)]

OSProfiler is disabled by default with Cinder. Make sure you have the section:

[osprofiler]
enabled = True

in cinder.conf and that it is listed in api-paste.ini so it is loaded.

[Emre Ates (emreates)]

Yes, I have them enabled. Here's the related section from /etc/cinder/cinder.conf:

[profiler]
trace_wsgi_transport = True
trace_message_store = True
trace_management_store = True
connection_string = redis://localhost:6379
hmac_keys = MYKEY
trace_sqlalchemy = False
enabled = True

And /etc/cinder/api-paste.ini:

[composite:osapi_volume]
use = call:cinder.api:root_app_factory
/: apiversions
/v1: openstack_volume_api_v1
/v2: openstack_volume_api_v2
/v3: openstack_volume_api_v3

#example, v2 and v1 are similar
[composite:openstack_volume_api_v3]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv3
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3

[filter:osprofiler]
paste.filter_factory = osprofiler.web:WsgiMiddleware.factory

I've also restarted openstack by "systemctl restart devstack@*" after changing these.

[Sean McGinnis (sean-mcginnis)]

Hopefully you figured this out, but your section is called [profiler], but the setting to enable this is under [osprofiler].

[Emre Ates (emreates)]

According to the documentation, the section should be [profiler].

https://docs.openstack.org/cinder/ussuri/configuration/block-storage/samples/cinder.conf.html

That is the same accross other services like nova, keystone.