airbyte/airbyte-integrations/connectors/source-postgres/README.md

Postgres Source

Performance Test

To run performance tests in commandline:

./gradlew :airbyte-integrations:connectors:source-postgres:performanceTest [--cpulimit=cpulimit/<limit>] [--memorylimit=memorylimit/<limit>]

In pull request:

/test-performance connector=connectors/source-postgres [--cpulimit=cpulimit/<limit>] [--memorylimit=memorylimit/<limit>]

• cpulimit: Limit the number of CPUs. The minimum is 2. E.g. --cpulimit=cpulimit/2.
• memorylimit: Limit the size of the memory. Must include the unit at the end (e.g. MB, GB). The minimum size is 6MB. E.g. --memorylimit=memorylimit/4GB.
• When none of the CPU or memory limit is provided, the performance tests will run without memory or CPU limitations. The available resource will be bound that those specified in ResourceRequirements.java.

Use Postgres script to populate the benchmark database

In order to create a database with a certain number of tables, and a certain number of records in each of them, you need to follow a few simple steps.

1. Create a new database.
2. Follow the TODOs in 3-run-script.sql to change the number of tables, and the number of records of different sizes.
3. On the new database, run the following script:

   cd airbyte-integrations/connectors/source-postgres
   psql -h <host> -d <db-name> -U <username> -p <port> -a -q -f src/test-performance/sql/1-create-copy-tables-procedure.sql
   psql -h <host> -d <db-name> -U <username> -p <port> -a -q -f src/test-performance/sql/2-create-insert-rows-to-table-procedure.sql
   psql -h <host> -d <db-name> -U <username> -p <port> -a -q -f src/test-performance/sql/3-run-script.sql
   

4. After the script finishes, you will receive the number of tables specified in the script, with names starting with test_0 and ending with test_(the number of tables minus 1).