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Store Demo - Runner

This Spring Boot application is used to generate load on the CockroachDB cluster. A runner should be deployed in each region you want to test. The runner application uses Spring profiles and profile specific application-{profile}.properties files. The default active profile is production. To use the local Docker instance start the runner application with the following parameter -Dspring.profiles.active=docker.

The runner is designed to simulate purchases with something like a store "credit" card. For each "swipe" of the card, the following occurs:

  • The customers account balance is queried based on account number.
  • A "hold" is placed on the account by inserting an authorization record into the auth table for the purchase amount.
  • The authorization record is updated with an approved status.
  • The account record is updated with the new balance.

To start the test run the following:

java -jar runner-2019.1-BETA.jar --run

The following parameters must be specified as either arguments or in the appropriate *.properties file

  • crdb.state - The state code that this runner will use to query database. For best performance the crdb.state should map to crdb.region.
  • crdb.region - The region where this runner is located.
  • crdb.servers - A comma separated list of ip address' or hostname's of a CockroachDB nodes in region. Preferably a private ip address' to prevent external routing.
  • crdb.run.duration - The duration in minutes this runner should generate load.
  • crdb.run.threads - The number of concurrent threads used to generate load.
  • crdb.accts.total - The total number of records in the acct table
  • crdb.accts.states - The number of states that crdb.accts.total is divided among