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diff --git a/docs/userguide/opnfv_yardstick_tc052.rst b/docs/userguide/opnfv_yardstick_tc052.rst new file mode 100644 index 000000000..9514b6819 --- /dev/null +++ b/docs/userguide/opnfv_yardstick_tc052.rst @@ -0,0 +1,141 @@ +.. 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 TC052 +************************************* + ++-----------------------------------------------------------------------------+ +|OpenStack Controller Node Disk I/O Block High Availability | +| | ++--------------+--------------------------------------------------------------+ +|test case id | OPNFV_YARDSTICK_TC052: OpenStack Controller Node Disk I/O | +| | Block High Availability | ++--------------+--------------------------------------------------------------+ +|test purpose | This test case will verify the high availability of control | +| | node. When the disk I/O of a specified disk is blocked, | +| | which breaks down the Openstack services on this node. Read | +| | and write services should still be accessed by other | +| | controller nodes, and the services on failed controller node | +| | should be isolated. | ++--------------+--------------------------------------------------------------+ +|test method | This test case blocks the disk I/O of a specified control | +| | node, then checks whether the services that need to read or | +| | wirte the disk of the control node are OK with some monitor | +| | tools. | ++--------------+--------------------------------------------------------------+ +|attackers | In this test case, an attacker called "disk-block" 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 "disk-block" in this | +| | test case. | +| | 2) host: which is the name of a control node being attacked. | +| | e.g. | +| | -fault_type: "disk-block" | +| | -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 scripts. It should be always set to | +| | "openstack-cmd" for this monitor. | +| | 2) command_name: which is the command name used for request. | +| | | +| | e.g. | +| | -monitor_type: "openstack-cmd" | +| | -command_name: "nova flavor-list" | +| | | +| | 2. the second monitor verifies the read and write function | +| | by a "operation" and a "result checker". | +| | the "operation" have two parameters: | +| | 1) operation_type: which is used for finding the operation | +| | class and related scripts. | +| | 2) action_parameter: parameters for the operation. | +| | the "result checker" have three parameters: | +| | 1) checker_type: which is used for finding the reuslt | +| | checker class and realted scripts. | +| | 2) expectedValue: the expected value for the output of the | +| | checker script. | +| | 3) condition: whether the expected value is in the output of | +| | checker script or is totally same with the output. | +| | | +| | In this case, the "operation" adds a flavor and the "result | +| | checker" checks whether ths flavor is created. Their | +| | parameters show as follows: | +| | operation: | +| | -operation_type: "nova-create-flavor" | +| | -action_parameter: | +| | flavorconfig: "test-001 test-001 100 1 1" | +| | result checker: | +| | -checker_type: "check-flavor" | +| | -expectedValue: "test-001" | +| | -condition: "in" | ++--------------+--------------------------------------------------------------+ +|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_tc052.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 | do attacker: connect the host through SSH, and then execute | +| | the block disk I/O script on the host. | +| | | +| | Result: The disk I/O of the host will be blocked | +| | | ++--------------+--------------------------------------------------------------+ +|step 2 | start monitors: | +| | each monitor will run with independently process | +| | | +| | Result: The monitor info will be collected. | +| | | ++--------------+--------------------------------------------------------------+ +|step 3 | do operation: add a flavor | +| | | ++--------------+--------------------------------------------------------------+ +|step 4 | do result checker: check whether the falvor is created | +| | | ++--------------+--------------------------------------------------------------+ +|step 5 | stop monitors after a period of time specified by | +| | "waiting_time" | +| | | +| | Result: The monitor info will be aggregated. | +| | | ++--------------+--------------------------------------------------------------+ +|step 6 | verify the SLA | +| | | +| | Result: The test case is passed or not. | +| | | ++--------------+--------------------------------------------------------------+ +|post-action | It is the action when the test cases exist. It excutes the | +| | release disk I/O script to release the blocked I/O. | ++--------------+--------------------------------------------------------------+ +|test verdict | Fails if monnitor SLA is not passed or the result checker is | +| | not passed, or if there is a test case execution problem. | +| | | ++--------------+--------------------------------------------------------------+ |