# PLJS Configuration Options
PLJS provides configuration options that are available either with the `SET` command in Postgres, or by adding them to the `postgresql.conf` file.
| Setting | Description | Default |
| ------------------------ | ----------------------------------------------------------------------------- | ----------------------------- |
| `pljs.execution_timeout` | Execution timeout in seconds before the JavaScript runtime is interrupted | `300` (Range of `1`-`65536`) |
| `pljs.memory_limit` | Memory limit of the JavaScript engone in `MB` | `256` (Range of `256`-`3096`) |
| `pljs.start_proc` | A Function Name to be called when the JavaScript engine is first initialized` | |
|