![[z/OS]](../images/ngzos.gif)
Considerations for setting the Sync to OS Thread Allowed option
There are a number of options to consider when setting the Sync to OS Thread Allowed option.
With the Sync to OS Thread Allowed support:
- The application developer or assembler requests behavior by setting the special application environment entry env-entry in the deployment descriptor: com.ibm.websphere.security.SyncToOSThread=true|false.
- The system administrator grants the request made by the application developer or assembler using an application server configuration setting.
- The resource access control facility (RACF®) administrator controls if Sync to OS Thread Allowed can be used by defining a FACILITY class profile with an optional SURROGAT class profile to refine the control.
You can select the Sync to OS Thread Allowed option at development time or at
assembly time:
- At development time, use Rational® Application Developer to add an environment entry (environment
variable) to the Enterprise JavaBeans (EJB) component or web application module. Important: Environment entries (environment variables) can be defined on individual EJB components but cannot be set on individual web components.
A Java™ Platform, Enterprise Edition (Java EE) standard deployment descriptor can be defined for each EJB component and for each web application module. Note that a web component is either a servlet or JavaServer Pages (JSP) files. For web components, environment entries (environment variables) can only be set on a web application module. A web application module contains servlets and JSP files.
- At assembly time, you can add or change environment entries (environment variables) using an assembly tool.