LRSLoadTest

Learning Record Store (LRS) load testing scripts and notes

Goals

Create a series of reusable scripts (jmeter, etc.) which can be used to load test an LRS and roughly benchmark its ability to handle large numbers of incoming statements.

Usage

• lrs_loadtest.jmx: Tests the ability of an LRS to POST and GET random quantities of statements. To run this script, you must set the following user-defined variables prior to usage:

  • username: the username for the LRS
  • password: the password for the LRS
  • lrsServerUrl: the hostname for the LRS
  • lrsServerPort: the port on the LRS server
  • lrsBasePath: the REST path on the LRS server
  • lrsStatementsPath: the REST endpoint for POSTing and GETting statements} (added to the base path)
  • lrsAboutPath: the REST endpoint for GETting the xAPI version (added to the base path)
  • testDataDir: the directory to the CSV data files (on your local machine)

  This test will post random amounts of statements, and optionally randomly perform a get, depending on the following settings:

  • statementMin: minimum number of statements to post per user
  • statementMax: maximum number of statements to post per user
  • queryMaxLoad: chance to do a GET per statement POST

Test Data

Within the data directory, there are several files that hold test data for posting statements.

• actors.txt: Holds test users (actors)

  • columns:
    • name: the users name
    • email: the user's email

• contexts: Holds test contexts

  • columns:
    • context: the action context
    • guid: the id of the action context

• objects: Holds test objects

  • columns:
    • object: object on which an action is performed

• verbs: Holds test verbs

  • columns:
    • verb: the action to perform on an object in a context

Contacts

Post issues in the issue tracker or send questions to:

• Aaron Zeckoski (azeckoski @ unicon.net) (azeckoski @ vt.edu)
• Robert Long (rlong @ unicon.net)