Using the NIM takeover operation
The takeover operation allows a machine that is configured as an alternate_master to take control of the NIM environment.
The alternate master attempts to become the current master of each client defined in its database by updating each client's /etc/niminfo file. This operation also attempts to update the database on the target alternate_master.
The command line syntax for the takeover operation is as follows:
nim [-F] -o takeover -a Attribute=Value ... TargetNameThe target of a takeover operation must be an alternate_master.
The following are optional attributes that can be specified for the takeover operation:
| Item | Description |
|---|---|
| -a verbose=Value | Displays information for debugging. Valid values are 1-5. Use verbose=5 to show maximum detail. The default is to show no debugging output. |
| -a show_progress [yes | no] | Indicates whether status should be displayed as the operation is performed. The default value is show_progress=yes. |
| -a async= [yes | no] | If this attribute is set to "yes", then the clients will be updated with the new master information asynchronously. The default is to run this command asynchronously. |
| -F | Specifies that NIM should force the operation. Use the force operation if the database on the alternate_master should be overwritten. |
Note: Thetakeover operation has no required
attributes.