Process execution settings

Use this page to view or change the process execution settings for a server process.

A server process applies to a specific application server.

[AIX Solaris HP-UX Linux Windows][IBM i]If you are running on IBM® i or a distributed operating systems, to view this administrative console page for an application server, click Servers > Server Types > WebSphere application servers > server_name. Then, in the Server Infrastructure section, click Java and process management > Process execution.

Process Priority

Specifies the operating system priority for the process. The administrative process that launches the server must have root operating system authority in order to honor this setting.

Information Value
Data type Integer
Default 20

UMASK

Specifies the user mask under which the process runs (the file-mode permission mask).

Note:

To support system management functions, the deployment manager and application servers need to run with the stated UMASK default value (022 for UNIX). You can change the default value of UMASK for the deployment manager and application servers to a more strict UMASK setting (027 for UNIX), but this change can have unintended consequences for stack products, add-ons, non-IBM products, and legacy scripts and processes.

Information Value
Data type Integer
Default 022 (for UNIX)
Default 007 (for z/OS)
[Linux][AIX][HP-UX][IBM i][Solaris]

Run As User

Specifies the user that the process runs as. This user ID must be defined to the security system.

Avoid trouble: For the Application Server to transition to the user that is specified in this option, the user that is launching the process must be a root user or user defined in Run As User. This is a restriction of the operating system. After an update and in the event the server does not start, ensure that the ownership of the profile directory is assigned to the non-root user ID.
[Linux][AIX][HP-UX][Solaris]Avoid trouble: When you use the Run As User capability, environment settings are not automatically changed. By default, the application server receives the environment settings, including the $HOME and $USER values, for the user that started the process and not the Run As User value. If any applications that are deployed on the application server require an environment setting that is set to a specific value for the Run As User, you must either:
  • Define the environment setting before you launch the server.
  • For the $HOME value, grant write permission for the Run As User value in the operating system.
If you are using the Run As User capability, it is not recommended that you rely on environment variables, but rather specify the values directly for the application.

[Windows]This field is ignored if you are running Microsoft Windows operating systems because Windows user accounts are not managed by the Application Server.

Information Value
Data type String

[IBM i]For the IBM i operating system, additional steps are required to run as a userid other than QEJBSVR. For more information, see the Security section of the WebSphere® Application Server for iSeries online documentation.

[Linux][AIX][HP-UX][Solaris]

Run As Group

Specifies the group that the process is a member of and runs as.

  • Note: If the user is a member of secondary groups, the server process will not have the user's access permissions to those groups by default. For the process to have those permissions, set this environment variable in the operating system prior to starting WebSphere Application Server: __JNI_PROCESS_INITGROUPS
  • [Linux][AIX][HP-UX][Solaris]Avoid trouble: When you use the Run As Group capability, environment settings are not automatically changed. By default, the application server receives the environment settings, including the $HOME and $USER values, for the user that started the process and not the Run As Group value. If any applications that are deployed on the application server require an environment setting that is set to a specific value for the Run As Group, you must either:
    • Define the environment setting before you launch the server.
    • For the $HOME value, grant write permission for the Run As Group value in the operating system.
    If you are using the Run As Group capability, it is not recommended that you rely on environment variables, but rather specify the values directly for the application.

If the runAsGroup value is specified, then that value is added to the secondary group list. If the runAsGroup value specified is not the runAsUser's primary group, the primary group will only be included in the secondary group list if the user is defined as part of the group list in the group database, typically /etc/group.

[Windows][IBM i]This field is ignored.

Information Value
Data type String
[Linux][AIX][HP-UX][Solaris]

Run In Process Group

Specifies a specific process group for the process. A process group is a mechanism that the operating system uses to logically associate multiple processes and operate on them as a single unit. Usually, the operating system uses this mechanism for signal distribution.

Specific operating systems might allow other operations to be performed on a process group. Refer to your operating system documentation for more information on the operations that can be performed on a process group.

[Windows][IBM i]This field is ignored.

Information Value
Data type Integer
Default 0, which indicates that the process is not assigned to a specific process group.