openstack/openstack-manuals
Code Issues Proposed changes

Correcting TRACE log level

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Change-Id: Ia74dfbd73dfcc265ee6bf5891ab628746d6d138d
Closes-bug: 1620782
This commit is contained in:
Alexandra Settle 2017-01-17 17:02:26 +00:00
parent ed1f815eba
commit b338370d80
1 changed files with 26 additions and 34 deletions
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doc/ops-guide/source/ops-logging.rst
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@ -53,7 +53,7 @@ Reading the Logs
~~~~~~~~~~~~~~~~
OpenStack services use the standard logging levels, at increasing
severity: DEBUG, INFO, AUDIT, WARNING, ERROR, CRITICAL, and TRACE. That
severity: TRACE, DEBUG, INFO, AUDIT, WARNING, ERROR, and CRITICAL. That
is, messages only appear in the logs if they are more "severe" than the
particular log level, with DEBUG allowing all log statements through.
For example, TRACE is logged only if the software has a stack trace,
@ -76,44 +76,36 @@ a Django web application, it follows the `Django Logging framework
conventions <https://docs.djangoproject.com/en/dev/topics/logging/>`_.
The first step in finding the source of an error is typically to search
for a CRITICAL, TRACE, or ERROR message in the log starting at the
for a CRITICAL, or ERROR message in the log starting at the
bottom of the log file.
Here is an example of a CRITICAL log message, with the corresponding
TRACE (Python traceback) immediately following:
Here is an example of a log message with the corresponding
ERROR (Python traceback) immediately following:
.. code-block:: console
2013-02-25 21:05:51 17409 CRITICAL cinder [-] Bad or unexpected response from the storage volume backend API:
volume group cinder-volumes doesn't exist
2013-02-25 21:05:51 17409 TRACE cinder Traceback (most recent call last):
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/bin/cinder-volume", line 48, in <module>
2013-02-25 21:05:51 17409 TRACE cinder service.wait()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/service.py", line 422, in wait
2013-02-25 21:05:51 17409 TRACE cinder _launcher.wait()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/service.py", line 127, in wait
2013-02-25 21:05:51 17409 TRACE cinder service.wait()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 166, in wait
2013-02-25 21:05:51 17409 TRACE cinder return self._exit_event.wait()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
2013-02-25 21:05:51 17409 TRACE cinder return hubs.get_hub().switch()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 177, in switch
2013-02-25 21:05:51 17409 TRACE cinder return self.greenlet.switch()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 192, in main
2013-02-25 21:05:51 17409 TRACE cinder result = function(*args, **kwargs)
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/service.py", line 88, in run_server
2013-02-25 21:05:51 17409 TRACE cinder server.start()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/service.py", line 159, in start
2013-02-25 21:05:51 17409 TRACE cinder self.manager.init_host()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 95,
in init_host
2013-02-25 21:05:51 17409 TRACE cinder self.driver.check_for_setup_error()
2013-02-25 21:05:51 17409 TRACE cinder File "/usr/lib/python2.7/dist-packages/cinder/volume/driver.py", line 116,
in check_for_setup_error
2013-02-25 21:05:51 17409 TRACE cinder raise exception.VolumeBackendAPIException(data=exception_message)
2013-02-25 21:05:51 17409 TRACE cinder VolumeBackendAPIException: Bad or unexpected response from the storage volume
backend API: volume group cinder-volumes doesn't exist
2013-02-25 21:05:51 17409 TRACE cinder
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server [req-c0b38ace-2586-48ce-9336-6233efa1f035 6c9808c2c5044e1388a83a74da9364d5 e07f5395c
2eb428cafc41679e7deeab1 - default default] Exception during message handling
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 133, in _process_incoming
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 150, in dispatch
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 121, in _do_dispatch
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/cinder/volume/manager.py", line 4366, in create_volume
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server allow_reschedule=allow_reschedule, volume=volume)
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/cinder/volume/manager.py", line 634, in create_volume
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server _run_flow()
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/cinder/volume/manager.py", line 626, in _run_flow
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server flow_engine.run()
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/taskflow/engines/action_engine/engine.py", line 247, in run
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server for _state in self.run_iter(timeout=timeout):
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/taskflow/engines/action_engine/engine.py", line 340, in run_iter
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server failure.Failure.reraise_if_any(er_failures)
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/taskflow/types/failure.py", line 336, in reraise_if_any
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server failures[0].reraise()
2017-01-18 15:54:00.467 32552 ERROR oslo_messaging.rpc.server File "/openstack/venvs/cinder-14.0.0/lib/python2.7/site-packages/taskflow/types/failure.py", line 343, in reraise
In this example, ``cinder-volumes`` failed to start and has provided a
stack trace, since its volume back end has been unable to set up the