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.. This work is licensed under a Creative Commons Attribution 4.0 International
.. License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) OPNFV, Yin Kanglin and others.
.. 14_ykl@tongji.edu.cn
*************************************
Yardstick Test Case Description TC051
*************************************
+-----------------------------------------------------------------------------+
|OpenStack Controller Node CPU Overload High Availability |
| |
+--------------+--------------------------------------------------------------+
|test case id | OPNFV_YARDSTICK_TC051: OpenStack Controller Node CPU |
| | Overload High Availability |
+--------------+--------------------------------------------------------------+
|test purpose | This test case will verify the high availability of control |
| | node. When the CPU usage of a specified controller node is |
| | stressed to 100%, which breaks down the Openstack services |
| | on this node. These Openstack service should able to be |
| | accessed by other controller nodes, and the services on |
| | failed controller node should be isolated. |
+--------------+--------------------------------------------------------------+
|test method | This test case stresses the CPU uasge of a specified control |
| | node to 100%, then checks whether all services provided by |
| | the environment are OK with some monitor tools. |
+--------------+--------------------------------------------------------------+
|attackers | In this test case, an attacker called "stress-cpu" is |
| | needed. This attacker includes two parameters: |
| | 1) fault_type: which is used for finding the attacker's |
| | scripts. It should be always set to "stress-cpu" in |
| | this test case. |
| | 2) host: which is the name of a control node being attacked. |
| | e.g. |
| | -fault_type: "stress-cpu" |
| | -host: node1 |
+--------------+--------------------------------------------------------------+
|monitors | In this test case, the monitor named "openstack-cmd" is |
| | needed. The monitor needs needs two parameters: |
| | 1) monitor_type: which is used for finding the monitor class |
| | and related scritps. It should be always set to |
| | "openstack-cmd" for this monitor. |
| | 2) command_name: which is the command name used for request |
| | |
| | There are four instance of the "openstack-cmd" monitor: |
| | monitor1: |
| | -monitor_type: "openstack-cmd" |
| | -command_name: "nova image-list" |
| | monitor2: |
| | -monitor_type: "openstack-cmd" |
| | -command_name: "neutron router-list" |
| | monitor3: |
| | -monitor_type: "openstack-cmd" |
| | -command_name: "heat stack-list" |
| | monitor4: |
| | -monitor_type: "openstack-cmd" |
| | -command_name: "cinder list" |
+--------------+--------------------------------------------------------------+
|metrics | In this test case, there is one metric: |
| | 1)service_outage_time: which indicates the maximum outage |
| | time (seconds) of the specified Openstack command request. |
+--------------+--------------------------------------------------------------+
|test tool | Developed by the project. Please see folder: |
| | "yardstick/benchmark/scenarios/availability/ha_tools" |
| | |
+--------------+--------------------------------------------------------------+
|references | ETSI NFV REL001 |
| | |
+--------------+--------------------------------------------------------------+
|configuration | This test case needs two configuration files: |
| | 1) test case file: opnfv_yardstick_tc051.yaml |
| | -Attackers: see above "attackers" discription |
| | -waiting_time: which is the time (seconds) from the process |
| | being killed to stoping monitors the monitors |
| | -Monitors: see above "monitors" discription |
| | -SLA: see above "metrics" discription |
| | |
| | 2)POD file: pod.yaml |
| | The POD configuration should record on pod.yaml first. |
| | the "host" item in this test case will use the node name in |
| | the pod.yaml. |
| | |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result |
| | |
+--------------+--------------------------------------------------------------+
|step 1 | start monitors: |
| | each monitor will run with independently process |
| | |
| | Result: The monitor info will be collected. |
| | |
+--------------+--------------------------------------------------------------+
|step 2 | do attacker: connect the host through SSH, and then execute |
| | the stress cpu script on the host. |
| | |
| | Result: The CPU usage of the host will be stressed to 100%. |
| | |
+--------------+--------------------------------------------------------------+
|step 3 | stop monitors after a period of time specified by |
| | "waiting_time" |
| | |
| | Result: The monitor info will be aggregated. |
| | |
+--------------+--------------------------------------------------------------+
|step 4 | verify the SLA |
| | |
| | Result: The test case is passed or not. |
| | |
+--------------+--------------------------------------------------------------+
|post-action | It is the action when the test cases exist. It kills the |
| | process that stresses the CPU usage. |
+--------------+--------------------------------------------------------------+
|test verdict | Fails only if SLA is not passed, or if there is a test case |
| | execution problem. |
| | |
+--------------+--------------------------------------------------------------+
|
