docs/testing/user/userguide/opnfv_yardstick_tc089.rst

   1 .. This work is licensed under a Creative Commons Attribution 4.0 International
   2 .. License.
   3 .. http://creativecommons.org/licenses/by/4.0
   4 .. (c) OPNFV, Yin Kanglin and others.
   5 .. 14_ykl@tongji.edu.cn
   6
   7 *************************************
   8 Yardstick Test Case Description TC089
   9 *************************************
  10
  11 +-----------------------------------------------------------------------------+
  12 |Control Node Openstack Service High Availability - Nova Conductor            |
  13 |                                                                             |
  14 +--------------+--------------------------------------------------------------+
  15 |test case id  | OPNFV_YARDSTICK_TC089: Control node Openstack service down - |
  16 |              | nova conductor                                               |
  17 +--------------+--------------------------------------------------------------+
  18 |test purpose  | This test case will verify the high availability of the      |
  19 |              | compute database proxy service provided by OpenStack (nova-  |
  20 |              | conductor) on control node.                                  |
  21 |              |                                                              |
  22 +--------------+--------------------------------------------------------------+
  23 |test method   | This test case kills the processes of nova-conductor service |
  24 |              | on a selected control node, then checks whether the request  |
  25 |              | of the related OpenStack command is OK and the killed        |
  26 |              | processes are recovered.                                     |
  27 |              |                                                              |
  28 +--------------+--------------------------------------------------------------+
  29 |attackers     | In this test case, an attacker called "kill-process" is      |
  30 |              | needed. This attacker includes three parameters:             |
  31 |              | 1) fault_type: which is used for finding the attacker's      |
  32 |              | scripts. It should be always set to "kill-process" in this   |
  33 |              | test case.                                                   |
  34 |              | 2) process_name: which is the process name of the specified  |
  35 |              | OpenStack service. If there are multiple processes use the   |
  36 |              | same name on the host, all of them are killed by this        |
  37 |              | attacker.                                                    |
  38 |              | In this case. This parameter should always set to "nova-     |
  39 |              | conductor".                                                  |
  40 |              | 3) host: which is the name of a control node being attacked. |
  41 |              |                                                              |
  42 |              | e.g.                                                         |
  43 |              | -fault_type: "kill-process"                                  |
  44 |              | -process_name: "nova-conductor"                              |
  45 |              | -host: node1                                                 |
  46 |              |                                                              |
  47 +--------------+--------------------------------------------------------------+
  48 |monitors      | In this test case, one kind of monitor is needed:            |
  49 |              | 1. the "process" monitor check whether a process is running  |
  50 |              | on a specific node, which needs three parameters:            |
  51 |              | 1) monitor_type: which used for finding the monitor class and|
  52 |              | related scripts. It should be always set to "process"        |
  53 |              | for this monitor.                                            |
  54 |              | 2) process_name: which is the process name for monitor       |
  55 |              | 3) host: which is the name of the node running the process   |
  56 |              |                                                              |
  57 |              | e.g.                                                         |
  58 |              | monitor:                                                     |
  59 |              | -monitor_type: "process"                                     |
  60 |              | -process_name: "nova-conductor"                              |
  61 |              | -host: node1                                                 |
  62 |              |                                                              |
  63 +--------------+--------------------------------------------------------------+
  64 |operations    | In this test case, the following operations are needed:      |
  65 |              | 1. "nova-create-instance": create a VM instance to check     |
  66 |              | whether the nova-conductor works normally.                   |
  67 |              |                                                              |
  68 +--------------+--------------------------------------------------------------+
  69 |metrics       | In this test case, there are one metric:                     |
  70 |              | 1)process_recover_time: which indicates the maximum time     |
  71 |              | (seconds) from the process being killed to recovered         |
  72 |              |                                                              |
  73 +--------------+--------------------------------------------------------------+
  74 |test tool     | Developed by the project. Please see folder:                 |
  75 |              | "yardstick/benchmark/scenarios/availability/ha_tools"        |
  76 |              |                                                              |
  77 +--------------+--------------------------------------------------------------+
  78 |references    | ETSI NFV REL001                                              |
  79 |              |                                                              |
  80 +--------------+--------------------------------------------------------------+
  81 |configuration | This test case needs two configuration files:                |
  82 |              | 1) test case file: opnfv_yardstick_tc089.yaml                |
  83 |              | -Attackers: see above "attackers" description                |
  84 |              | -waiting_time: which is the time (seconds) from the process  |
  85 |              | being killed to stopping monitors the monitors               |
  86 |              | -Monitors: see above "monitors" description                  |
  87 |              | -SLA: see above "metrics" description                        |
  88 |              |                                                              |
  89 |              | 2)POD file: pod.yaml                                         |
  90 |              | The POD configuration should record on pod.yaml first.       |
  91 |              | the "host" item in this test case will use the node name in  |
  92 |              | the pod.yaml.                                                |
  93 |              |                                                              |
  94 +--------------+--------------------------------------------------------------+
  95 |test sequence | description and expected result                              |
  96 |              |                                                              |
  97 +--------------+--------------------------------------------------------------+
  98 |step 1        | do attacker: connect the host through SSH, and then execute  |
  99 |              | the kill process script with param value specified by        |
 100 |              | "process_name"                                               |
 101 |              |                                                              |
 102 |              | Result: Process will be killed.                              |
 103 |              |                                                              |
 104 +--------------+--------------------------------------------------------------+
 105 |step 2        | start monitors:                                              |
 106 |              | each monitor will run with independently process             |
 107 |              |                                                              |
 108 |              | Result: The monitor info will be collected.                  |
 109 |              |                                                              |
 110 +--------------+--------------------------------------------------------------+
 111 |step 3        | create a new instance to check whether the nova conductor    |
 112 |              | works normally.                                              |
 113 |              |                                                              |
 114 +--------------+--------------------------------------------------------------+
 115 |step 4        | stop the monitor after a period of time specified by         |
 116 |              | "waiting_time"                                               |
 117 |              |                                                              |
 118 |              | Result: The monitor info will be aggregated.                 |
 119 |              |                                                              |
 120 +--------------+--------------------------------------------------------------+
 121 |post-action   | It is the action when the test cases exist. It will check the|
 122 |              | status of the specified process on the host, and restart the |
 123 |              | process if it is not running for next test cases             |
 124 |              |                                                              |
 125 +--------------+--------------------------------------------------------------+
 126 |test verdict  | Fails only if SLA is not passed, or if there is a test case  |
 127 |              | execution problem.                                           |
 128 |              |                                                              |
 129 +--------------+--------------------------------------------------------------+