SharePlex 11.4 - Installation and Setup guide

Overview of SharePlex security groups

About the SharePlex Security Groups

To monitor, control, or change SharePlex replication, a person must be assigned to one of the SharePlex security groups on the systems where he or she will be issuing commands. Each group corresponds to an authorization level, which determines which SharePlex commands a person can issue. To execute a command, a user must have that command’s authorization level or higher. Use the authlevel command to determine your authorization level for issuing SharePlex commands on a system.

Description of the SharePlex security groups

Refer to the following table to determine the group and authorization level that you want to grant each SharePlex user.

User Authorization Levels and Roles

Note: The default name for the SharePlex administrator group is spadmin, but you can designate any group or specify any name for that group during installation.

Create and populate SharePlex groups on Unix and Linux

Create and Populate SharePlex Groups on Unix and Linux

Where and when to create the SharePlex groups on Unix and Linux depends on whether you install SharePlex as a root or non-root user.

• If you install as non-root, create the groups in the /etc/group file before you run the SharePlex installer. In a cluster, create them on all nodes.*
• If you install SharePlex as a root user, you can direct the installer to create the groups in the /etc/group file. If you install in a cluster, the installer creates the groups on the primary node, but you must create them yourself on the other nodes.

* The groups must exist because the installer adds the SharePlex Administrator user to the spadmin group during the installation process. In a cluster, this user is only added to the primary node. You must add the SharePlex Administrator user to the other nodes.

To create the groups in /etc/group :

To assign a user to a group:

1. Open the /etc/group file.

2. Add the Unix or Linux user name to the appropriate group. To assign a list of user names to a group, use a comma-separated list (see the following example).

   spadmin:*:102:spadmin,root,jim,jane,joyce,jerry

   If the password field is null, no password is associated with the group. In the example, the asterisk (*) represents the password, “102” represents the numerical group ID, and spadmin is the group. The group ID must be unique.

3. Save the file.

Users can verify their authorization levels by issuing the authlevel command in sp_ctrl.

Solve Installation Problems

Contents

Overview

This chapter reviews some common problems that you could experience when installing or running SharePlexfor the first time after installation.

Sometimes there are special installation instructions that supersede or supplement certain instructions in this manual. In addition, there can be known issues for this version that you should be aware of during or after installation. Please read the Release Notes for the version of SharePlex that you are installing before you begin the installation process.

Solve installer problems

Is sp_cop shut down?

If you installed SharePlex on this system before, and you are re-installing it, the installation will return errors if SharePlex is running on this system. Shut down SharePlex using the shutdown command in sp_ctrl. If you are unable to run sp_ctrl, or if any SharePlex processes will not die, locate the process (using ps -ef | grep sp_ on Unix and Linux systems) and kill it. When all SharePlex processes have been killed, run the installation program again.

Are all systems connected to the network?

Check to see that all systems on which you are loading SharePlex are connected to the network. The network node name and IP address of each system must be established sufficiently to allow SharePlex to perform TCP operations, even though the target machines themselves are not yet configured.

Did you enter the SharePlex groups in the name service?

If your environment uses a name service such as NIS or NISPLUS, you need to add the SharePlex groups and services to the nameserver before you run the SharePlex installation program, and the SharePlex Administrator must be named in the SharePlex Admin group on the nameserver before you install SharePlex. Instructions are on page 31. If these procedures are not performed, the installation will generate an error at the point in which it attempts to verify that the groups exist.

Is the database open?

The database must be open while you are installing SharePlex.