2015-09-07 16:52:17 +00:00
actions Merge "Full response for VolumesClient methods" 2015-09-07 16:52:17 +00:00
etc Allow sress test runner to skip based on available services 2015-03-16 17:40:11 -04:00
tools Change logging in stress test 2013-08-08 15:10:29 +02:00
__init__.py Remove copyright from empty files 2014-01-14 03:02:04 +04:00
cleanup.py Merge "Return complete resp from security_groups_client" 2015-08-25 10:51:32 +00:00
driver.py Use the prefix-embedded rand_name method 2015-07-06 16:52:41 +12:00
README.rst Add links to the field guide index 2014-07-25 16:03:08 -04:00
stressaction.py Update all Oslo module use 2015-03-11 21:07:56 +00:00

Tempest Field Guide to Stress Tests

OpenStack is a distributed, asynchronous system that is prone to race condition bugs. These bugs will not be easily found during functional testing but will be encountered by users in large deployments in a way that is hard to debug. The stress test tries to cause these bugs to happen in a more controlled environment.


This particular framework assumes your working Nova cluster understands Nova API 2.0. The stress tests can read the logs from the cluster. To enable this you have to provide the hostname to call 'nova-manage' and the private key and user name for ssh to the cluster in the [stress] section of tempest.conf. You also need to provide the location of the log files:

target_logfiles = "regexp to all log files to be checked for errors" target_private_key_path = "private ssh key for controller and log file nodes" target_ssh_user = "username for controller and log file nodes" target_controller = "hostname or ip of controller node (for nova-manage) log_check_interval = "time between checking logs for errors (default 60s)"

To activate logging on your console please make sure that you activate use_stderr in tempest.conf or use the default logging.conf.sample file.

Running default stress test set

The stress test framework can automatically discover test inside the tempest test suite. All test flag with the @stresstest decorator will be executed. In order to use this discovery you have to be in the tempest root directory and execute the following:

run-tempest-stress -a -d 30

Running the sample test

To test installation, do the following:

run-tempest-stress -t tempest/stress/etc/server-create-destroy-test.json -d 30

This sample test tries to create a few VMs and kill a few VMs.

Additional Tools

Sometimes the tests don't finish, or there are failures. In these cases, you may want to clean out the nova cluster. We have provided some scripts to do this in the tools subdirectory. You can use the following script to destroy any keypairs, floating ips, and servers: