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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, Huawei Technologies Co.,Ltd and others.
*************************************
Yardstick Test Case Description TC019
*************************************
+-----------------------------------------------------------------------------+
|Control Node Openstack Service High Availability |
| |
+--------------+--------------------------------------------------------------+
|test case id | OPNFV_YARDSTICK_TC019_HA: Control node Openstack service down|
| | |
+--------------+--------------------------------------------------------------+
|test purpose | This test case will verify the high availability of the |
| | service provided by OpenStack (like nova-api, neutro-server) |
| | on control node. |
| | |
+--------------+--------------------------------------------------------------+
|test method | This test case kills the processes of a specific Openstack |
| | service on a selected control node, then checks whether the |
| | request of the related Openstack command is OK and the |
| | killed processes are recovered. |
| | |
+--------------+--------------------------------------------------------------+
|attackers | In this test case, an attacker called "kill-process" is |
| | needed. This attacker includes three parameters: |
| | 1) fault_type: which is used for finding the attacker's |
| | scripts. It should be always set to "kill-process" in this |
| | test case. |
| | 2) process_name: which is the process name of the specified |
| | OpenStack service. If there are multiple processes use the |
| | same name on the host, all of them are killed by this |
| | attacker. |
| | 3) host: which is the name of a control node being attacked. |
| | |
| | e.g. |
| | -fault_type: "kill-process" |
| | -process_name: "nova-api" |
| | -host: node1 |
| | |
+--------------+--------------------------------------------------------------+
|monitors | In this test case, two kinds of monitor are needed: |
| | 1. the "openstack-cmd" monitor constantly request a specific |
| | Openstack command, which 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 |
| | |
| | 2. the "process" monitor check whether a process is running |
| | on a specific node, which needs three parameters: |
| | 1) monitor_type: which used for finding the monitor class |
| | and related scritps. It should be always set to "process" |
| | for this monitor. |
| | 2) process_name: which is the process name for monitor |
| | 3) host: which is the name of the node runing the process |
| | |
| | e.g. |
| | monitor1: |
| | -monitor_type: "openstack-cmd" |
| | -command_name: "openstack server list" |
| | monitor2: |
| | -monitor_type: "process" |
| | -process_name: "nova-api" |
| | -host: node1 |
| | |
+--------------+--------------------------------------------------------------+
|metrics | In this test case, there are two metrics: |
| | 1)service_outage_time: which indicates the maximum outage |
| | time (seconds) of the specified Openstack command request. |
| | 2)process_recover_time: which indicates the maximun time |
| | (seconds) from the process being killed to recovered |
| | |
+--------------+--------------------------------------------------------------+
|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_tc019.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 kill process script with param value specified by |
| | "process_name" |
| | |
| | Result: Process will be killed. |
| | |
+--------------+--------------------------------------------------------------+
|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 will check |
| | the status of the specified process on the host, and restart |
| | the process if it is not running for next test cases. |
| | |
| | Notice: This post-action uses 'lsb_release' command to check |
| | the host linux distribution and determine the OpenStack |
| | service name to restart the process. Lack of 'lsb_release' |
| | on the host may cause failure to restart the process. |
| | |
+--------------+--------------------------------------------------------------+
|test verdict | Fails only if SLA is not passed, or if there is a test case |
| | execution problem. |
| | |
+--------------+--------------------------------------------------------------+
|
