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A set of tools for performance testing of Opencast clusters

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oc-perf-testing

This project provides a set of tools for performance testing of Opencast Opsworks clusters. It should be compatible with both 1x and 5x+ opencast variants. The goal is to provide a means for generating performance data useful for comparing different cluster configurations, e.g. instance types, storage, db and job load choices.

Setup

Python 3 is required.

The automated selenium tasks for uploading recordings relies on chromedriver, so you'll need both the Google Chrome browser and the chromedriver binary. You can most likely install it via your system's package manager, e.g. brew, apt-get, etc., or download directly and put it on your path somewhere.

  1. To bootstrap the python package dependencies you will first need to have virtualenv and pip-tools installed: pip install virtualenv pip-tools
  2. Create and activate a python virtualenv in your preferred way.
  3. Run pip-sync to install the dependencies from the requirements.txt file.
  4. Run invoke -l to see the list of available tasks and ensure deps are installed correctly.

Configuration

The tasks get their configuration information from a .env file in the root project directory. Copy the included example.env to .env and update appropriately.

  • AWS_PROFILE - necessary if you have multiple accounts set up in your ~/.aws/credentials
  • OC_CLUSTER - the name of the Opsworks stack you're working with. Both 1x and 5x+ clusters are supported and the tasks have built-in logic for figuring out which is being used.
  • OC_ADMIN_USER - Opencast admin login user (used by Selenium)
  • OC_ADMIN_PASS - Opencast admin login password (used by Selenium)

Tasks

Commands are broken up into two namespaces: perf and create. The tasks in the perf space collect performance data from the cluster and output csv. The create tasks execute Selenium processes for performing recording uploads.

Tasks are executed via the invoke command, e.g. invoke perf.fio. The usage info for each task can be viewed with the -h flag, e.g. invoke -h perf.fio.

A quick summary of each command:

  • create.events - Upload recording(s) using Selenium
  • create.series - Create a simple test series using Selenium
  • perf.fio - Performs io benchmarking
  • perf.iperf3- Performs network benchmarking between nodes in the cluster
  • perf.locust - Web load testing (not yet implemented)
  • perf.operations - Extract Opencast workflow operation performance data

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A set of tools for performance testing of Opencast clusters

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