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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+=====================================
+OPNFV Doctor release notes (Danube)
+=====================================
+
+Version history
+===============
+
++------------+--------------+------------+-------------+
+| **Date**   | **Ver.**     | **Author** | **Comment** |
++============+==============+============+=============+
+| 2017-03-31 | Danube 1.0   | Ryota Mibu |             |
++------------+--------------+------------+-------------+
+
+Important notes
+===============
+
+OPNFV Doctor project started as a requirement project and identified gaps
+between "as-is" open source software (OSS) and an "ideal" platform for NFV.
+Based on this analysis, the Doctor project proposed missing features to
+upstream OSS projects. After those features were implemented, OPNFV installer
+projects integrated the features to the OPNFV platform and the OPNFV
+infra/testing projects verified the functionalities in the OPNFV Labs.
+
+This document provides an overview of the Doctor project in the OPNFV Danube
+release, including new features, known issues and documentation updates.
+
+New features
+============
+
+For Danube release, the Doctor project focused primarily on enhancing the
+testing tools, enabling additional test scenarios, and support and verification
+on a wider range of OPNFV installers.
+
+* **Performance profiler PoC**
+
+  The performance profiler is designed to get timestamp in each checkpoint of
+  components for further analysis. In Danube, initial PoC implementation of the
+  perfomance profiler has been added to the Doctor testing tools
+  by contribution from the `QTIP`_ team. The tools can now show how long it
+  takes for each component in a series of processes for fault notification.
+  Some checkpoints are not covered yet though. To activate this, set the
+  PROFILER_TYPE="poc" before running the main script ("tests/run.sh").
+  See `DOCTOR-72`_ for more details.
+
+* **Testing with multiple tenant VMs**
+
+  The Doctor testing tools now supports new testing scenario where multiple
+  tenant VMs in the system under test can be created (`DOCTOR-77`_).
+  This allows to measure fault notification time/cost with stressed VIM
+  controllers, in order to see perfomance trends.
+
+.. _QTIP: https://wiki.opnfv.org/display/qtip
+.. _DOCTOR-72: https://jira.opnfv.org/browse/DOCTOR-72
+.. _DOCTOR-77: https://jira.opnfv.org/browse/DOCTOR-77
+
+Installer support and verification status
+=========================================
+
+Integrated features
+-------------------
+
+Minimal Doctor functionality of VIM is available in the OPNFV platform from
+the Brahmaputra release. The basic Doctor framework in VIM consists of a
+Controller (Nova) and a Notifier (Ceilometer+Aodh) along with a sample
+Inspector and Monitor developed by the Doctor team.
+
+From the Danube release, key integrated feature is:
+
+* **Congress as Doctor Inspector**
+
+  Congress Inspector is now verified with latest vanilla OpenStack without
+  backporting any patch, like the one we had backported for adding Doctor
+  driver of Congress in Colorado.
+
+OPNFV installer support matrix
+------------------------------
+
+In the Brahmaputra release, only one installer (Apex) supported the deployment
+of the basic Doctor framework by configuring Doctor features. In the Danube
+release, integration of Doctor features progressed in other OPNFV installers.
+
++-----------+-------------------+--------------+-----------------+-------------------+
+| Installer | Aodh              | Nova: Force  | Nova: Get valid | Congress          |
+|           | integration       | compute down | service status  | integration       |
++===========+===================+==============+=================+===================+
+| Apex      | Available         | Available    | Available,      | Available         |
+|           |                   |              | Verified only   |                   |
+|           |                   |              | for admin users |                   |
++-----------+-------------------+--------------+-----------------+-------------------+
+| Fuel      | Available         | Available    | Available,      | N/A               |
+|           | (`DOCTOR-58`_)    |              | Verified only   | (`FUEL-230`_)     |
+|           |                   |              | for admin users |                   |
++-----------+-------------------+--------------+-----------------+-------------------+
+| Joid      | Available         | TBC          | TBC             | Available         |
+|           | (`JOID-76`_),     |              |                 | (`JOID-73`_),     |
+|           | Not verified      |              |                 | Not verified      |
++-----------+-------------------+--------------+-----------------+-------------------+
+| Compass   | Available         | TBC          | TBC             | Available         |
+|           | (`COMPASS-357`_), |              |                 | (`COMPASS-367`_), |
+|           | Not verified      |              |                 | Not verified      |
++-----------+-------------------+--------------+-----------------+-------------------+
+
+.. _DOCTOR-58: https://jira.opnfv.org/browse/DOCTOR-58
+.. _FUEL-230: https://jira.opnfv.org/browse/FUEL-230
+.. _JOID-76: https://jira.opnfv.org/browse/JOID-76
+.. _JOID-73: https://jira.opnfv.org/browse/JOID-73
+.. _COMPASS-357: https://jira.opnfv.org/browse/COMPASS-357
+.. _COMPASS-367: https://jira.opnfv.org/browse/COMPASS-367
+
+Note: 'Not verified' means that we didn't verify the functionality by having
+our own test scenario running in OPNFV CI pipeline yet.
+
+Documentation updates
+=====================
+
+* **Configuration manual for Congress**
+
+  Steps to configure Congress as Doctor Inspector have been added
+  to Doctor configuration manual (`DOCTOR-85`_).
+
+* **Alarm comparison**
+
+  As part of the review between Doctor Danube (OpenStack Newton) and ETSI NFV
+  IFA, the alarm comparison table has been updated (`DOCTOR-82`_).
+
+* **OpenStack mechanisms for fencing**
+
+  The section on fencing in the requirement document has been updated with more
+  details of Nova and Neutron (`REVIEW#27049`_).
+
+* **How to test**
+
+  Two ways to run the Doctor testing tools have been added
+  (`REVIEW#28223`_).
+
+You can also find other minor updates in `DOCTOR-81`_.
+
+.. _DOCTOR-81: https://jira.opnfv.org/browse/DOCTOR-81
+.. _DOCTOR-82: https://jira.opnfv.org/browse/DOCTOR-82
+.. _DOCTOR-85: https://jira.opnfv.org/browse/DOCTOR-85
+.. _REVIEW#28223: https://gerrit.opnfv.org/gerrit/28223/
+.. _REVIEW#27049: https://gerrit.opnfv.org/gerrit/27049/
+
+Known issues
+============
+
+* Doctor testing scenario is not verified with non-admin user (`DOCTOR-80`_).
+
+* Congress Nova driver is relying on deprecated Nova APIs and can lead to
+  an error (`BUG#1670345`_). The workaround for this issue is to specify nova
+  micro version to 2.34 . Apex is using this workaround for OpenStack Newton
+  (`REVIEW#29463`_).
+
+.. _DOCTOR-80: https://jira.opnfv.org/browse/DOCTOR-80
+.. _BUG#1670345: https://bugs.launchpad.net/congress/+bug/1670345
+.. _REVIEW#29463: https://gerrit.opnfv.org/gerrit/29463/