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Managing User Access

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The grid engine system has the following four categories of users:

The following sections describe each category in more detail.

Configuring Manager Accounts

To configure a manager account from the command line, type the following command with appropriate options:

# qconf options

The following options are available:

Configuring Operator Accounts

You can configure operator accounts with QMON or from the command line.

To configure an operator account from the command line, type the following command with appropriate options:

# qconf options

The following options are available:

Configuring User Access Lists

Any user with a valid login ID on at least one submit host and one execution host can use the grid engine system. However, grid engine system managers can prohibit access for certain users to certain queues or to all queues. Furthermore, managers can restrict the use of facilities such as specific parallel environments. See Configuring Parallel Environments for more information.

In order to define access permissions, you must define user access lists, which are made up of named sets of users. You use user names and UNIX group names to define user access lists. The user access lists are then used either to deny or to allow access to a specific resource in any of the following configurations:

To configure user access lists from the command line, type the following command with appropriate options.

The following options are available:

qconf -au user-name[,...]access-list-name[,...] 

The -au option (add user) adds one or more users to the specified access lists.

qconf -Au filename 

The -Au option (add user access list from file) uses a configuration file, filename, to add an access list.

qconf -du user-name[,...] access-list-name [,...] 

The -du option (delete user) deletes one or more users from the specified access lists.

qconf -dul access-list-name[,...]

The -dul option (delete user list) completely removes userset lists.

qconf -mu access-list-name 

The -mu option (modify user access list) modifies the specified access lists.

qconf -Mu filename 

The -Mu option (modify user access list from file) uses a configuration file, filename, to modify the specified access lists.

qconf -su access-list-name[,...] 

The -su option (show user access list) displays the specified access lists.

qconf -sul 

The -sul option (show user access lists) displays all access lists currently defined.

Defining Usersets As Projects and Departments

Usersets are also used to define grid engine system projects and departments. For details about projects, see Defining Projects.

Departments are used for the configuration of the functional policy and the override policy. Departments differ from access lists in that a user can be a member of only one department, whereas one user can be included in multiple access lists. For more details, see Configuring the Functional Policy and Configuring the Override Policy.

A Userset is identified as a department by the Department flag, which is shown in Figure 4–1 and Figure 4–2. A Userset can be defined as both a department and an access list at the same time. However, the restriction of only a single appearance by any user in any department applies.

Configuring Users

You must declare user names before you define the share-based, functional, or override policies for users. See Configuring Policy-Based Resource Management With QMON.

If you do not want to explicitly declare user names before you define policies, the grid engine system can automatically create users for you, based on predefined default values. The automatic creation of users can significantly reduce the administrative burden for sites with many users.

To have the system create users automatically, set the Enforce User parameter on the Cluster Settings dialog box to Auto. To set default values for automatically created users, specify values for the following Automatic User Defaults on the Cluster Settings dialog box:

For more information about the cluster configuration, see Basic Cluster Configuration.

Configuring User Objects From the Command Line

To configure user objects from the command line, type the following command with appropriate options:

# qconf options

The following options are available:

qconf -auser 

The -auser option (add user) opens a template user configuration in an editor. See the user(5) man page. The editor is either the default vi editor or the editor specified by the EDITOR environment variable. After you save your changes and exit the editor, the changes are registered with sge_qmaster.

qconf -Auser filename 

The -Auser option (add user from file) parses the specified file and adds the user configuration.

The file must have the format of the user configuration template.

qconf -duser user-name[,...]

The -duser option (delete user) deletes one or more user objects.

qconf -muser user-name 

The -muser option (modify user) enables you to modify an existing user entry. The option loads the user configuration in an editor. The editor is either the default vi editor or the editor specified by the EDITOR environment variable. After you save your changes and exit the editor, the changes are registered with sge_qmaster.

qconf -Muser filename 

The -Muser option (modify user from file) parses the specified file and modifies the user configuration.

The file must have the format of the user configuration template.

qconf -suser user-name 

The -suser option (show user) displays the configuration of the specified user.

qconf -suserl

The -suserl option (show user list) displays a list of all currently defined users.



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