Starting Transformer

When you install Transformer from a tarball, you start Transformer manually. When you install Transformer from an RPM package, you start Transformer as a service.

Starting Transformer Manually

When you install Transformer from a tarball, use the command prompt to manually start Transformer from the $TRANSFORMER_DIST directory, the location where you extracted the tarball and the base Transformer runtime directory.

When you start Transformer, Transformer runs as the user account logged into the command prompt. You can alternatively impersonate another user account when you run the command.

You can use any of the following commands from the $TRANSFORMER_DIST directory to start Transformer manually:

To run Transformer as the system user account logged into the command prompt, use:
```
bin/streamsets transformer
```
To run Transformer in the background as the system user account logged into the command prompt, use:
```
nohup bin/streamsets transformer &
```
To run Transformer as another system user account, use:
```
sudo -u <user> bin/streamsets transformer
```

Starting Transformer as a Service

When you install Transformer from an RPM package, use a command prompt to start Transformer as a service.

You can use one of the following commands from the $TRANSFORMER_DIST directory to start Transformer, as appropriate:

For CentOS 6, Oracle Linux 6, or Red Hat Enterprise Linux 6, use:
```
service transformer start
```
For CentOS 7, Oracle Linux 7, or Red Hat Enterprise Linux 7, use:
```
systemctl start transformer
```